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Search For The Decay Mu E Gamma
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Book Synopsis Search for the Decay. Mu. . --]. E. Gamma by :
Download or read book Search for the Decay. Mu. . --]. E. Gamma written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This Letter reports a new experimental search for the family-number-nonconserving decay ..mu.. ..-->.. e..gamma ... There is no evidence for the presence of this decay mode. The upper limit for the branching ratio is GAMMA(..mu.. ..-->.. e..gamma..)/GAMMA(..mu.. ..-->.. enu anti nu)
Book Synopsis Search for the Decay [mu] --> E + [gamma]. by : Howard Fred Davis
Download or read book Search for the Decay [mu] --> E + [gamma]. written by Howard Fred Davis and published by . This book was released on 1960 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for the Rare Decay [mu]+ --> E+[gamma][gamma] by : David Paul Grosnick
Download or read book A Search for the Rare Decay [mu]+ --> E+[gamma][gamma] written by David Paul Grosnick and published by . This book was released on 1987 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for the Rare Decay. Mu. . --]. E. Gamma Gamma by :
Download or read book A Search for the Rare Decay. Mu. . --]. E. Gamma Gamma written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental search for the lepton-family number nonconserving decay, .mu. .-->. e.gamma gamma., has been conducted at the Clinton P. Anderson Meson Physics Facility (LAMPF) using the Crystal Box detector. The detector consists of a modular NaI(Tl) calorimeter, scintillator hodoscope, and a high-resolution, cylindrical drift chamber. It provides a large solid-angle for detecting three-body decays and has good resolutions in the time, position, and energy measurements to eliminate unwanted backgrounds. No evidence for .mu.+ .-->. e+.gamma gamma. is found, giving an upper limit for the branching ratio of GAMMA(.mu. .-->. e.gamma gamma.)/GAMMA(.mu. .-->. e nu anti nu) less than or equal to 7.2 x 10−11 (90% C.L.). This result is an improvement of more than two orders of magnitude in the existing limit. 109 refs., 39 figs.
Book Synopsis Search for the Decay Mode [mu] - E + [gamma] by : Juliet Lee
Download or read book Search for the Decay Mode [mu] - E + [gamma] written by Juliet Lee and published by . This book was released on 1960 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Issues of the Search for [mu]->e+[gamma] Decay in the MEG Experiment at Paul Sherrer Institut by : Giovanni Gallucci
Download or read book Experimental Issues of the Search for [mu]->e+[gamma] Decay in the MEG Experiment at Paul Sherrer Institut written by Giovanni Gallucci and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for the Decay Mode Mu to E Plus Gamma by : JULIET. LEE
Download or read book Search for the Decay Mode Mu to E Plus Gamma written by JULIET. LEE and published by . This book was released on 1960 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Decay [mu] [yields] E[gamma] by the MEGA Experiment by :
Download or read book A Study of the Decay [mu] [yields] E[gamma] by the MEGA Experiment written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The MEGA experiment is designed to search for the lepton-flavor number non-conserving rare decay [mu] [yields] [ital e][gamma]. Data- taking is complete, with 450 million events on tape taken over approximately 10[sup 7] seconds. A small portion of the data sample has been processed through the complete event reconstruction codes to search for the [mu] [yields] [ital e][gamma] process. No evidence for the [mu] [yields] [ital e][gamma] decay is observed at a sensitivity of [approximately]7 x 10[sup -11] (90% confidence).
Book Synopsis Current Experiments in Elementary Particle Physics by :
Download or read book Current Experiments in Elementary Particle Physics written by and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Photon Detector System for the Search for the Rare Muon Decay Mu, E Gamma by : Leo Anthony Van Ausdeln
Download or read book A Photon Detector System for the Search for the Rare Muon Decay Mu, E Gamma written by Leo Anthony Van Ausdeln and published by . This book was released on 1993 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for the Neutrinoless Muon Decay. Mu. . --]. E. Gamma by :
Download or read book Search for the Neutrinoless Muon Decay. Mu. . --]. E. Gamma written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Separate muon, electron, and tau numbers are conserved in the minimal standard model of electroweak interactions with massless neutrinos. However, in many extensions to the standard model, separate lepton numbers are not expected to be conserved quantities. A new search for muon number non-conserving processes has been undertaken at the Los Alamos Meson Physics Facility (LAMPF), specifically to look for three neutrinoless decay modes of the muon. The search for the decay of a muon to an electron and a photon is discussed here. A new detector facility, located in the LAMPF stopped muon channel, was developed for this experiment. This Crystal Box detector consists of a cylindrical drift chamber surrounded by a plastic scintillator hodoscope and a large solid angle, modularized, NaI(Tl) calorimeter. The apparatus measures the trajectories, relative timing, and energies of charged particles and photons from the decays of positive muons stopped in a central target. The assembly and calibration of the detector are described, and the procedure for taking data is discussed. The sample of 1.3 million candidate events, from the first data run of the Crystal Box, was analyzed using a maximum-likelihood method. The upper limit on the branching ratio, relative to normal muon decay, for a muon decaying to an electron and a photon is found to be consistent with previous measurements. With 90% confidence, the branching ratio for this neutrinoless decay is observed to be less than 2.8 x 101°.
Book Synopsis A Search For. Mu. Yields E. Gamma. at the Level of 10 Sup Minus 13 by :
Download or read book A Search For. Mu. Yields E. Gamma. at the Level of 10 Sup Minus 13 written by and published by . This book was released on 1990 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The status of the MEGA experiment is described. It is a search for the decay [mu] {r arrow} e[gamma] with a branching ratio sensitivity of approximately 10−13. The observation of this decay would indicate the existence of physics outside the standard model of electroweak interactions. The experiment employs highly modular, fast detectors, state-of-the-art electronics, and a staged trigger with on-line filters. The detectors are contained in a 1.5 T solenoidal field produced by a superconducting magnet. Positrons are confined to the central region and are measured by a set of thin MWPCs. Photons are measured by one of four layers of pair spectrometers in the outer region. Most aspects of the detector design have been validated in engineering runs; data taking will begin in 1990 with most of the electron arm and one pair spectrometer layer installed. 5 refs., 4 figs.
Book Synopsis (A High Sensitivity Search for Mu Gamma by :
Download or read book (A High Sensitivity Search for Mu Gamma written by and published by . This book was released on 1990 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past 12 month period the Valparaiso University group has been active on LAMPF experiment 969, known as the MEGA experiment. This experiment is a search for the decay [mu] -> e [gamma], a decay which would violate lepton number conservation and which is strictly forbidden by the standard model for electroweak interactions. Previous searches for this decay mode have set limit the present day limit of 4.9 × 10−11. The MEGA experiment is designed to test the standard model predictions to one part in 10{sup +13}.
Book Synopsis MEGA -- A Search for [mu] [r-arrow] E[gamma]. by :
Download or read book MEGA -- A Search for [mu] [r-arrow] E[gamma]. written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The MEGA experiment is a search for the decay [mu] [r-arrow] e[gamma]. Even though there is no fundamental reason to expect lepton number to be a conserved quantity, processes such as [mu] [r-arrow] e[gamma] have not been observed. (The present upper limit for the branching ratio for [mu] [r-arrow] e[gamma] is 4.9 x 10[sup [minus]11].) The minimal standard model of electroweak interactions, which is enormously successful, builds in lepton number conservation. However, the decay [mu] [r-arrow] e[gamma] is expected in many extensions to the standard model, in particular in supersymmetry models. The experimental signature for [mu] [r-arrow] e[gamma] from decays at rest is the observation of a positron and photon, each of 52.8 MeV, that are back-to-back, in time coincidence, and originate from a common spatial point. The MEGA detector consists of two spectrometers designed to measure the kinematic characteristics of positrons and photons to search for events with this signature. The primary difficulty in the analysis of these data has been the development of reconstruction algorithms that balance efficiency and resolution. Also, many calibrations and corrections are needed to get optimum resolutions. Most surviving candidate events are accidentals. Results of analysis are given.
Book Synopsis Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? by : Roman Pasechnik
Download or read book Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? written by Roman Pasechnik and published by Frontiers Media SA. This book was released on 2020-09-03 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis A Photon Detector System for the Search for the Rare Muon Decay [mu] 2!e[gamma]. by :
Download or read book A Photon Detector System for the Search for the Rare Muon Decay [mu] 2!e[gamma]. written by and published by . This book was released on 1993 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: An innovative and state of the art pair spectrometer system to measure the photon component of [mu]+ decay to obtain an improved branching ratio limit for the decay [mu] → e[gamma] is investigated. Analysis algorithms are developed and an experimental inner bremsstrahlung spectrum is obtained and agrees well with Monte Carlo simulations. Background sources are investigated and found to be highly suppressed at various stages of acquisition and analysis.
Book Synopsis A Photon Detector System for the Search for the Rare Muon Decay [mu] [yields] E[gamma]. by :
Download or read book A Photon Detector System for the Search for the Rare Muon Decay [mu] [yields] E[gamma]. written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An innovative and state of the art pair spectrometer system to measure the photon component of [mu][sup +] decay to obtain an improved branching ratio limit for the decay [mu] [yields] e[gamma] is investigated. Analysis algorithms are developed and an experimental inner bremsstrahlung spectrum is obtained and agrees well with Monte Carlo simulations. Background sources are investigated and found to be highly suppressed at various stages of acquisition and analysis.
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