A Study of Purely Letonic Decays of the Charged B Meson
Author : Pablo Hopman
Publisher :
Page : 364 pages
File Size : 27,33 MB
Release : 2000
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Author : Pablo Hopman
Publisher :
Page : 364 pages
File Size : 27,33 MB
Release : 2000
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Author : C. Jess Riedel
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Page : 0 pages
File Size : 38,36 MB
Release : 2007
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Author : Thomas John Cunningham
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Page : 110 pages
File Size : 20,96 MB
Release : 2013
Category : Particles (Nuclear physics)
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Author : Nabil Menaa
Publisher :
Page : 146 pages
File Size : 41,90 MB
Release : 2007
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ISBN : 9780549045328
Using 281 pb--1 of data taken on the psi(3770) resonance and 314 pb--1 of data near or at 4170 MeV collected with the CLEO-c detector, we present two analyses to study the purely leptonic decays of charmed and charmed strange charged mesons.
Author : Stephanie A. Majewski
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Page : 218 pages
File Size : 20,94 MB
Release : 2007
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Page : 292 pages
File Size : 20,22 MB
Release : 2003
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Page : 7 pages
File Size : 40,68 MB
Release : 2008
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Using 383 million B{bar B} pairs from the BABAR data sample, they report results for branching fractions of six charged B-meson decay modes, where a charged kaon recoils against a charmless resonance decaying to K{bar K}* or [eta][pi][pi] final states with mass in the range (1.2-1.8) GeV/c2. They observe a significant enhancement at the low K{bar K}* invariant mass which is interpreted as B 2![eta](1475)K, find evidence for the decay B+ 2![eta](1295)K+, and place upper limits on the decays B+ 2![eta](1405)K+, B+ 2!f1(1285)K+, B+ 2!f1(1420)K+, and B+ 2![phi](1680)K+.
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Page : 7 pages
File Size : 43,38 MB
Release : 2008
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Author : Luke Andrew Corwin
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Page : 148 pages
File Size : 41,15 MB
Release : 2008
Category : B mesons
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Abstract: We present a search for the decay of the charged B meson into a charged lepton and a neutrino 458.9 million Upsilon(4S) decays recorded with the Babar detector at the SLAC PEP-II B-Factory. A sample of events with one reconstructed exclusive semileptonic B decay is selected, and in the recoil a search for the signal decay is performed. The tau lepton is identified in decays to an electron and two neutrinos; a muon and two neutrinos; a charged pion and a neutrino; or a charged pion, a neutral pion, and a neutrino. The analysis strategy and the statistical procedure is set up for branching fraction extraction or upper limit determination. We determine from the data set a preliminary measurement of the branching fraction a charged B decaying to a tau lepton and a neutrino = (1.8 " 0.8 " 0.1)E-4, which excludes zero at 2.4 standard deviations. We extract the B meson decay constant = 255 " 58 MeV. Combination with the hadronically tagged measurement yields (1.8 " 0.6)E-4. We also set preliminary limits on the branching fraction of charged B decaying to an electron and a neutrino at 7.7E-6 and the charged B decaying to a muon and a neutrino at 11E-6. The limits are at the 90% confidence level.
Author : Adrian H. Cho
Publisher :
Page : 524 pages
File Size : 15,75 MB
Release : 1997
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