Observation Of A Narrow Near Threshold Structure In The J Psi Phi Mass Spectrum In B To J Psi Phi K Decays
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Nuclear Science Abstracts
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Author :
language : en
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Release Date : 1976
Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Nuclear energy categories.
Observation Of A Narrow Near Threshold Structure In The J Psi Phi Mass Spectrum In B To J Psi Phi K Decays
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Author :
language : en
Publisher:
Release Date : 2010
Observation Of A Narrow Near Threshold Structure In The J Psi Phi Mass Spectrum In B To J Psi Phi K Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Observation is reported for a structure near the J/[psi][phi] threshold in B+ → J/[psi][phi]K+ decays produced in {bar p}p collisions at √s = 1.96 TeV with a statistical significance of beyond 5 standard deviations. There are 19 ± 6 events observed for this structure at a mass of 4143.4{sub -3.0}{sup +2.9}(stat) ± 0.6(syst) MeV/c2 and a width of 15.3{sub -6.1}{sup +10.4}(stat) ± 2.5(syst) MeV/c2, which are consistent with the previous measurements reported as evidence of the Y(4140).
High Energy Physics Index
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language : en
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Release Date : 1990
High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Nuclear physics categories.
Evidence For A Narrow Near Threshold Structure In The J Psi Phi Mass Spectrum In B To J Psi Phi K Decays
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Author :
language : en
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Release Date : 2009
Evidence For A Narrow Near Threshold Structure In The J Psi Phi Mass Spectrum In B To J Psi Phi K Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Evidence is reported for a narrow structure near the J/[psi][phi] threshold in exclusive B+ → J/[psi][phi]K+ decays produced in {bar p}p collisions at √s = 1.96 TeV. A signal of 14 ± 5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosity of 2.7 fb−1, collected by the CDF II detector. The mass and natural width of the structure are measured to be 4143.0 ± 2.9(stat) ± 1.2(syst) MeV/c2 and 11.7{sub -5.0}{sup +8.3}(stat) ± 3.7(syst) MeV/c2.
Physics Briefs
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Author :
language : en
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Release Date : 1988
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Physics categories.
Inis Atomindex
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Author :
language : en
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Release Date : 1988
Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nuclear energy categories.
Energy Research Abstracts
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Author :
language : en
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Release Date : 1988
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Power resources categories.
Observation Of A Peaking Structure In The J Psi Phi Mass Spectrum From B Pm To J Psi Phi K Pm Decays
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language : en
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Release Date : 2014
Observation Of A Peaking Structure In The J Psi Phi Mass Spectrum From B Pm To J Psi Phi K Pm Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
A peaking structure in the J/psi phi mass spectrum near threshold is observed in B(+/- ) to J/psi phi K(+/- ) decays, produced in pp collisions at sqrt(s) = 7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis of the dimuon decay mode of the J/psi, corresponds to an integrated luminosity of 5.2 inverse femtobarns. Fitting the structure to an S-wave relativistic Breit-Wigner lineshape above a three-body phase-space nonresonant component gives a signal statistical significance exceeding five standard deviations. The fitted mass and width values are m = 4148.0 +- 2.4 (stat.) +- 6.3 (syst.) MeV and Gamma = 28 +15 -11 (stat.) +- 19 (syst.) MeV, respectively. Evidence for an additional peaking structure at higher J/psi phi mass is also reported.
Bulletin Of The Atomic Scientists
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language : en
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Release Date : 1970-06
Bulletin Of The Atomic Scientists written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970-06 with categories.
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1993
Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Government reports announcements & index categories.