![]() |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
On Jan 9, 8:26*pm, maxwell wrote in
sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev |
#2
|
|||
|
|||
![]()
On Jan 9, 10:54*pm, Pentcho Valev wrote:
On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT. |
#3
|
|||
|
|||
![]()
On Jan 12, 3:00*pm, maxwell wrote:
On Jan 9, 10:54*pm, Pentcho Valev wrote: On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. *Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. *In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. And this somebody would really need to convince everybody that he is just really part of the audience... |
#4
|
|||
|
|||
![]() "Strich.9" wrote in message ... On Jan 12, 3:00 pm, maxwell wrote: On Jan 9, 10:54 pm, Pentcho Valev wrote: On Jan 9, 8:26 pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. ============================================== Aww... c'mon. That's an easily disproved statement. Your knee-jerk reactions are not doing you much good. And this somebody would really need to convince everybody that he is just really part of the audience... |
#5
|
|||
|
|||
![]()
On Jan 12, 12:04*pm, "Strich.9" wrote:
On Jan 12, 3:00*pm, maxwell wrote: On Jan 9, 10:54*pm, Pentcho Valev wrote: On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. *Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. *In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. And this somebody would really need to convince everybody that he is just really part of the audience... Since muons are the result of pion decays, which are themselves products of higher structure decays, they would appear to be a very poor candidate for the role of clocks, especially as they always appear briefly in high-speed situations. Unlike long-lived isotopes, such as C14, muoms cannot be prepared 'at rest' in the lab frame without imposing violent deceleration interventions, with unknown results. Can someone propose a better experimental test of the LT time dilation effect that does NOT involve acceleration? |
#6
|
|||
|
|||
![]()
maxwell wrote:
Can someone propose a better experimental test of the LT time dilation effect that does NOT involve acceleration? One of the major lessons of a physics education is that nothing is ever exact in the world we inhabit, and approximations must always be made when discussing real phenomena. For instance, it simply is not possible to measure the lifetime of muons without them ever having experienced any acceleration. So instead, one measures the lifetime of many muons while varying their velocity and acceleration. This has been done many times by many different experimental groups; all of their results can be summarized as follows: A) The lifetime of a muon varies with speed v as 1/sqrt(1-v^2/c^2); this is accurate to a few parts per million for ~0.01 v/c 1. B) the lifetime of a muon is not affected by acceleration up to at least 10^18 g (1 g = 9.8 m/s^2); this is accurate to about 1,000 parts per million at v/c = 0.999. For details, go to http://pdg.lbl.gov. The above values are from memory, and may be off a bit. (B) implies that in the limit of zero acceleration, the muon lifetime is is well described by (A). Tom Roberts |
#7
|
|||
|
|||
![]()
On Jan 14, 5:17*pm, maxwell wrote:
On Jan 12, 12:04*pm, "Strich.9" wrote: On Jan 12, 3:00*pm, maxwell wrote: On Jan 9, 10:54*pm, Pentcho Valev wrote: On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity.. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. *Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. *In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. And this somebody would really need to convince everybody that he is just really part of the audience... Since muons are the result of pion decays, which are themselves products of higher structure decays, they would appear to be a very poor candidate for the role of clocks, especially as they always appear briefly in high-speed situations. *Unlike long-lived isotopes, such as C14, muoms cannot be prepared 'at rest' in the lab frame without imposing violent deceleration interventions, with unknown results. Can someone propose a better experimental test of the LT time dilation effect that does NOT involve acceleration? ~the famous Lorentz transformation [] ensures that the velocity of [particle] light is invariant between different *inertial* frames, and also reduces to the more familiar Galilean transform in the limit $v \ll c$. ~ http://farside.ph.utexas.edu/teachin...s/node109.html The particle light has never been observed. http://nobelprize.org/nobel_prizes/p...icles/ekspong/ So that use of the Lorentz transform has never been confirmed. A Lorentz transformation or any other coordinate transformation will convert electric or magnetic fields into mixtures of electric and magnetic fields, but no transformation mixes them with the gravitational [inertial by equivalence] field. http://scitation.aip.org/journals/do..._11/31_1.shtml Sue... |
#8
|
|||
|
|||
![]()
On Jan 14, 5:17*pm, maxwell wrote:
On Jan 12, 12:04*pm, "Strich.9" wrote: On Jan 12, 3:00*pm, maxwell wrote: On Jan 9, 10:54*pm, Pentcho Valev wrote: On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity.. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. *Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. *In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. And this somebody would really need to convince everybody that he is just really part of the audience... Since muons are the result of pion decays, which are themselves products of higher structure decays, they would appear to be a very poor candidate for the role of clocks, especially as they always appear briefly in high-speed situations. *Unlike long-lived isotopes, such as C14, muoms cannot be prepared 'at rest' in the lab frame without imposing violent deceleration interventions, with unknown results. Can someone propose a better experimental test of the LT time dilation effect that does NOT involve acceleration?- Hide quoted text - - Show quoted text - No need. The whole concept is illogical and unsound. |
#9
|
|||
|
|||
![]()
On Jan 14, 9:33*pm, Tom Roberts wrote:
A) The lifetime of a muon varies with speed v as 1/sqrt(1-v^2/c^2); * * this is accurate to a few parts per million for ~0.01 v/c 1. NO PROOF IDIOT. Stop reciting verses from your bible. |
#10
|
|||
|
|||
![]()
On Jan 14, 3:17*pm, maxwell wrote:
On Jan 12, 12:04*pm, "Strich.9" wrote: On Jan 12, 3:00*pm, maxwell wrote: On Jan 9, 10:54*pm, Pentcho Valev wrote: On Jan 9, 8:26*pm, maxwell wrote in sci.physics.relativity: The relative times for the average decay rates of high-speed muons versus low-speed muons appears to be the only actual experimental evidence for the time expansion predictions of special relativity.. There seem to be quite a few experiments MEASURING the decays of high- speed muons and these are usually contrasted with the CALCULATED times of stationary muon decays using the LT formula. *This is not evidence for SRT but an example of 'begging the question'. My question to all readers is this: *Can anyone give any references (preferably accessible online) to ACTUAL experiments were decay times of stationary (or low-speed ) muons were actually measured? Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest" ("stationary" muons). When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in Einstein zombie world human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, in perfect accordance with Divine Albert's Divine Theory, being "at rest", the muon disintegrates more quickly than another muon that is not "at rest" (that is, the other muon is not involved in a crash): http://websci.smith.edu/~pdecowsk/muons.html "The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days." Pentcho Valev Thanks for making this point explicitly. *Until physics has a theory of muon decay we cannot say that relative external influences on the muon are not important in determining its average decay rates. *In other words, muon decay interactions and THEREFORE decay rates may be a direct function of velocity (relative to the lab or measurement setup) and all of these measured time variations may have no relationship to SRT.- Hide quoted text - - Show quoted text - A magician cannot do his tricks without help from somebody in the audience. And this somebody would really need to convince everybody that he is just really part of the audience... Since muons are the result of pion decays, which are themselves products of higher structure decays, they would appear to be a very poor candidate for the role of clocks, especially as they always appear briefly in high-speed situations. *Unlike long-lived isotopes, such as C14, muoms cannot be prepared 'at rest' in the lab frame without imposing violent deceleration interventions, with unknown results. Can someone propose a better experimental test of the LT time dilation effect that does NOT involve acceleration?- Hide quoted text - - Show quoted text - accidental signals distort the time histogram of muon decay so their are isitope particles better suited for expeiramentation as internal clock frame refrance that are easeir to calculate radiactive decay cycle to show wheight change over X amount of time wrt velocity. |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Muon hoaksy poaksy | Pentcho Valev | Astronomy Misc | 27 | June 19th 08 11:02 PM |
The sun produces muon neutrinos flux without neutrino oscillations. | dan@@pixelphase.com | UK Astronomy | 1 | April 13th 08 10:58 PM |
Muon Question | Pentcho Valev | Astronomy Misc | 5 | November 19th 07 04:23 PM |