Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Measurement Of The Decay Of The U63 1s Upsilon1s And U632s Upsilon2s Resonances To Muon Pairs full books in PDF, epub, and Kindle. Read online Measurement Of The Decay Of The U63 1s Upsilon1s And U632s Upsilon2s Resonances To Muon Pairs ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
![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)
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (752 download)
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:
![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 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:
![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 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:
![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)
Author : Michael Kobel
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (654 download)
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:
![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)
Author : Michael Kobel
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (256 download)
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:
![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)
Author : Michael Kobel
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (752 download)
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:
![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)
Author : Michael Kobel
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (118 download)
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:
![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)
Author : ARGUS Collaboration
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (755 download)
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:
![Download A measurement of the electronic widths _G63_1tne_1tne [gamma ee] of the _U63(1S) [upsilon(1S)], _U63(2S) [upsilon(2S)], and _U63(4S) [upsilon(4S)] resonances, and of the total decay width _G63 [gamma] of the _U63(4S) [upsilon(4S)] PDF Online Free](https://books.google.com/books/content/images/frontcover/c1P6ewEACAAJ?fife=w200-h370)
Download or read book A measurement of the electronic widths _G63_1tne_1tne [gamma ee] of the _U63(1S) [upsilon(1S)], _U63(2S) [upsilon(2S)], and _U63(4S) [upsilon(4S)] resonances, and of the total decay width _G63 [gamma] of the _U63(4S) [upsilon(4S)] written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
![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)
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).
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.
