Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Measurement Ot The Decay Of The 1s Upsilon1s And 2s Upsilon2s Resonances To Muon Pairs And Determination Of The Strong Coupling Constant Using The Crystal Ball Detector
Download Measurement Ot The Decay Of The 1s Upsilon1s And 2s Upsilon2s Resonances To Muon Pairs And Determination Of The Strong Coupling Constant Using The Crystal Ball Detector full books in PDF, epub, and Kindle. Read online Measurement Ot The Decay Of The 1s Upsilon1s And 2s Upsilon2s Resonances To Muon Pairs And Determination Of The Strong Coupling Constant Using The Crystal Ball Detector ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Measurement of the Decay of the U(1S) [Upsilon(1S)] and U(2S) [Upsilon(2S)] Resonances to Muon Pairs and Determination of the Strong Coupling Constant Using the Crystal Ball Detector by : Michael Kobel
Download or read book Measurement of the Decay of the U(1S) [Upsilon(1S)] and U(2S) [Upsilon(2S)] Resonances to Muon Pairs and Determination of the Strong Coupling Constant Using the Crystal Ball Detector written by Michael Kobel and published by . This book was released on 1991 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement ot the decay of the Υ(1S) [upsilon(1S)] and Υ(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector by : Michael Kobel
Download or read book Measurement ot the decay of the Υ(1S) [upsilon(1S)] and Υ(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector written by Michael Kobel and published by . This book was released on 1991 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement ot the decay of the _U63(1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector by : Michael Kobel
Download or read book Measurement ot the decay of the _U63(1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector written by Michael Kobel and published by . This book was released on 1991 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the decay of the _U63(1S) [Upsilon(1S)] and _U63(2S) [Upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the crystal ball detector by : Michael Kobel
Download or read book Measurement of the decay of the _U63(1S) [Upsilon(1S)] and _U63(2S) [Upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the crystal ball detector written by Michael Kobel and published by . This book was released on 1991 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs by :
Download or read book Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs written by and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs by :
Download or read book Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Decay of the [Upsilon] (1S) and [Upsilon] (2S) Resonances to Muon Pairs by :
Download or read book Measurement of the Decay of the [Upsilon] (1S) and [Upsilon] (2S) Resonances to Muon Pairs written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Decay UPSILON(2S). --]. Pi. °. Pi. °UPSILON(1S). by :
Download or read book Measurement of the Decay UPSILON(2S). --]. Pi. °. Pi. °UPSILON(1S). written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The hadronic transitions UPSILON(2S) .-->. .pi.°.pi. UPSILON(1S) .-->. .gamma gamma gamma gamma.ll− (l = .mu. or e) are investigated using the Crystal Ball detector. The analysis is based on 193,000 UPSILON(2S) events produced at the DORIS II ee− storage ring from November 1982 to February 1984. We observe 44 events with a muon pair and 46 events with an electron pair in the final state. The signals in both channels are relatively background free. Assuming lepton universality, we average the results for the two channels and obtain the product branching ratio B(UPSILON(2S) .-->. .pi.°.pi.°UPSILON(1S)) x B/sub ll/(UPSILON(1S)) = (2.3 +- 0.3 +- 0.3) x 10−3 where the first error is statistical and the second is systematic. Using the present world average value of B/sub ll/(UPSILON(1S)) = (2.9 +- 0.3)% we derive a branching ratio B(UPSILON(2S) .-->. .pi.°.pi.°UPSILON(1S)) = (8.0 +- 1.5)% where the statistical and systematic errors have been added in quadrature. This result is compared with previous results for the charged pion transitions UPSILON(2S) .-->. .pi.+.pi.−UPSILON(1S) and with the expectation from theory. We have also investigated the mass spectrum M/sub .pi.°.pi.°/ resulting from these decays and find a peaking toward high masses not accounted for the phase space alone. Fits to the .pi.°.pi.° mass spectrum are in quantitative agreement with previous results for the .pi.+.pi.− transitions. Angular distribution for the .pi.°.pi.° system and its decay products are presented in reference frames appropriate for analyzing the spin of the .pi.°.pi.° system, even if the initial UPSILON(1S) and the di-pion system are emitted in a relative S-wave. We find the decay distributions to be consistent with those expected for a spin zero di-pion system emitted in a relative S-wave with the UPSILON(1S).
Book Synopsis Radiative Decays of the Upsilon (2S) Resonance by :
Download or read book Radiative Decays of the Upsilon (2S) Resonance written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Crystal Ball Detector at DORIS II was used to study radiative decays of the upsilon (2S) resonance with more than twice the previously available data. The inclusive photon spectrum of hadronic upsilon (2S) decays and the exclusive channel upsilon (2S) .-->. .gamma gamma. upsilon (1S) .-->. .gamma gamma. ll− were analyzed. In the inclusive spectrum three significant photon lines at energies of E.gamma.1 = (108.2 +- 0.7 +- 4) MeV, E.gamma.1 = (127.1 +- 0.8 +- 4) MeV and E.gamma.3 = (160.0 +- 2.4 +- 4) MeV with branching fractions of (6.0 +- 0.7 +- 0.9)%, (6.6 +- 0.8 +- 1.0)%, (2.6 +- 0.7 +- 0.8)% respectively were measured. The lines are consistent with being transitions from the upsilon (2S) to the 3P2, 3P1 and 3P0 states. In addition a line at E.gamma. approx. 427 MeV was observed which is interpreted as transitions from the 3P2 1 states to the upsilon (1S). 17 references.
Book Synopsis Search for Primarily Non-interacting Decay Modes of the Upsilon by :
Download or read book Search for Primarily Non-interacting Decay Modes of the Upsilon written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The hadronic transition UPSILON(2S) .-->. .pi.°.pi.°UPSILON(1S) is utilized to search for the reactions: UPSILON(1S) .-->. non-interacting particles and UPSILON(1S) .-->. .gamma. + non-interacting particles. 44 pb−1 of UPSILON(2S) data were taken by the Crystal Ball detector at the DORIS II storage ring in order to perform this study. An upper limit of BR(UPSILON .-->. Unseen) 12% (90% C.L.), is obtained via this approach. The second process investigated involved the radiative decay of the Upsilon into non-interacting particles. 57 pb−1 of UPSILON(2S) data was available for this study. An upper limit on the branching ratio BR(UPSILON .--. .gamma. + Unseen) is measured for photon energies in the range 500 MeV E.gamma.
Book Synopsis Measurement of the Decay [upsilon](2S) Goes to [pi]0[pi]0[upsilon](1S) by : David Michael Gelphman
Download or read book Measurement of the Decay [upsilon](2S) Goes to [pi]0[pi]0[upsilon](1S) written by David Michael Gelphman and published by . This book was released on 1985 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A measurement of the electronic widths Gee [gamma ee] of the U(1S) [upsilon(1S)], U(2S) [upsilon(2S)], and U(4S) [upsilon(4S)] resonances, and of the total decay width G [gamma] of the U(4S) [upsilon(4S)] by : ARGUS Collaboration
Download or read book A measurement of the electronic widths Gee [gamma ee] of the U(1S) [upsilon(1S)], U(2S) [upsilon(2S)], and U(4S) [upsilon(4S)] resonances, and of the total decay width G [gamma] of the U(4S) [upsilon(4S)] written by ARGUS Collaboration and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Decay [Upsilon](S2) [approaches] [Pi Pi Upsilon](1S) by : CRYSTAL BALL Collaboration
Download or read book Measurement of the Decay [Upsilon](S2) [approaches] [Pi Pi Upsilon](1S) written by CRYSTAL BALL Collaboration and published by . This book was released on 1985 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for Narrow States in Radiative Upsilon Decays by :
Download or read book A Search for Narrow States in Radiative Upsilon Decays written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for new states produced in radiative UPSILON(1S) decays is accomplished by observing the inclusive photon energy spectrum. A narrow resonance in the energy spectrum indicates the existence of a new state X produced by the process UPSILON .-->. .gamma. X. The analysis is based on approximately 0.44 x 106 UPSILON(1S) events produced at the DORIS II ee− storage ring. These data were collected with the Crystal Ball detector between April 1983 and May 1986. This analysis finds no evidence for a new state, so upper limits on the branching ratio BR(UPSILON .-->. .gamma. X) are derived, assuming the state X decays primarily to high-multiplicity hadronic final states. In particular, if the state X were a minimal Higgs particle, its primary decay mode would be to the heaviest fermion-antifermion pair energetically available. For the radiative UPSILON(1S) decays studied here, the heavy fermions would be c anti c or s anti s quark states, over most of the relevant Higgs' mass range. The resulting upper limit for BR(UPSILON(1S) .-->. .gamma. X) is highly energy dependent but for X mass between 1.5 GeV and 8.0 GeV, the 90% confidence level upper limit is better than 8.0 x 10−4. For a Higgs' mass near 5.0 GeV, the upper limit is about 2.0 x 10−4 which is approximately equal to the lowest order calculation for the Wilczek mechanism. The Wilczek calculation with QCD radiative corrections predict branching ratios below the limits set here for all Higgs' masses.
Book Synopsis Search for Axion Production in UPSILON(1S) Decays by :
Download or read book Search for Axion Production in UPSILON(1S) Decays written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for axion production in radiative UPSILON(1S) decays using the Crystal Ball detector. We find no evidence for a signal and give a new upper limit, Br(UPSILON(1S).-->.a°.gamma.)
![Download Measurement of the Decay of the U(1S) [Upsilon(1S)] and U(2S) [Upsilon(2S)] Resonances to Muon Pairs and Determination of the Strong Coupling Constant Using the Crystal Ball Detector PDF Online Free](https://books.google.com/books/content/images/frontcover/MiOqswEACAAJ?fife=w200-h370)
![Download Measurement ot the decay of the Υ(1S) [upsilon(1S)] and Υ(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector PDF Online Free](https://books.google.com/books/content/images/frontcover/fcHJzQEACAAJ?fife=w200-h370)
![Download Measurement ot the decay of the _U63(1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the Crystal Ball detector PDF Online Free](https://books.google.com/books/content/images/frontcover/PVPyHAAACAAJ?fife=w200-h370)
![Download Measurement of the decay of the _U63(1S) [Upsilon(1S)] and _U63(2S) [Upsilon(2S)] resonances to muon pairs and determination of the strong coupling constant using the crystal ball detector PDF Online Free](https://books.google.com/books/content/images/frontcover/q_8FGwAACAAJ?fife=w200-h370)
![Download Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs PDF Online Free](https://books.google.com/books/content/images/frontcover/SHNjzwEACAAJ?fife=w200-h370)
![Download Measurement of the decay of the _U63 (1S) [upsilon(1S)] and _U63(2S) [upsilon(2S)] resonances to muon pairs PDF Online Free](https://books.google.com/books/content/images/frontcover/EQNuHQAACAAJ?fife=w200-h370)
![Download Measurement of the Decay of the [Upsilon] (1S) and [Upsilon] (2S) Resonances to Muon Pairs PDF Online Free](https://books.google.com/books/content/images/frontcover/Pp11zQEACAAJ?fife=w200-h370)
![Download Measurement of the Decay UPSILON(2S). --]. Pi. °. Pi. °UPSILON(1S). PDF Online Free](https://books.google.com/books/content/images/frontcover/2AyfAQAACAAJ?fife=w200-h370)
 Goes to [pi]0[pi]0[upsilon](1S) PDF Online Free](https://books.google.com/books/content/images/frontcover/PIYgAQAAIAAJ?fife=w200-h370)
![Download A measurement of the electronic widths Gee [gamma ee] of the U(1S) [upsilon(1S)], U(2S) [upsilon(2S)], and U(4S) [upsilon(4S)] resonances, and of the total decay width G [gamma] of the U(4S) [upsilon(4S)] PDF Online Free](https://books.google.com/books/content/images/frontcover/MNJMHAAACAAJ?fife=w200-h370)
 [approaches] [Pi Pi Upsilon](1S) PDF Online Free](https://books.google.com/books/content/images/frontcover/t_OGuAAACAAJ?fife=w200-h370)
