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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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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Author :
language : en
Publisher:
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.

Physics Briefs

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Author :
language : en
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Release Date : 1986

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 1986 with Physics categories.

Inis Atomindex

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language : en
Publisher:
Release Date : 1983

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 1983 with Nuclear energy categories.

Review Of Particle Properties

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Author : Particle Data Group
language : en
Publisher:
Release Date : 1978

Review Of Particle Properties written by Particle Data Group and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Baryons categories.

Science Citation Index

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language : en
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Release Date : 1995

Science Citation 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 1995 with Science categories.

Vols. for 1964- have guides and journal lists.

Observation Of The Y 4140 Structure In The J Psi Phi Mass Spectrum In B Pm To J Psi Phi K Decays

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Author :
language : en
Publisher:
Release Date : 2011

Observation Of The Y 4140 Structure In The J Psi Phi Mass Spectrum In B Pm 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 2011 with 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).

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
Publisher:
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.

Observation Of A Near Threshold Enhancement In The P Anti P Mass Spectrum From Radiative J Psi Gamma P Anti P Decays

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Author :
language : en
Publisher:
Release Date : 2003

Observation Of A Near Threshold Enhancement In The P Anti P Mass Spectrum From Radiative J Psi Gamma P Anti P 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 2003 with categories.

We observe a narrow enhancement near 2m[sub p] in the invariant mass spectrum of p[bar p] pairs from radiative J/[psi][yields][gamma]p[bar p] decays. No similar structure is seen in J/[psi][yields][pi][sup 0] p[bar p] decays. The results are based on an analysis of a 58 million event sample of J/[psi] decays accumulated with the BESII detector at the Beijing electron-positron collider. The enhancement can be fit with either an S- or P-wave Breit Wigner resonance function. In the case of the S-wave fit, the peak mass is below 2m[sup p] at M= 1859[sub -10][sup+3] (stat)[sub -25][sup+5] (sys) MeV/c[sup 2] and the total width is[Lambda]

Observation Of The Decay Mathrm B To Psi 2 Mathrm S Phi 1020 Mathrm K In Pp Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2016

Observation Of The Decay Mathrm B To Psi 2 Mathrm S Phi 1020 Mathrm K In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

The decay $ \mathrm{B}^{+} \to \psi(2 \mathrm{S}) \phi(1020) \mathrm{ K }^{+} $ is observed for the first time using data collected from pp collisions at $\sqrt{s} = $ 8 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6 fb$^{-1}$. The branching fraction of this decay is measured, using the mode $\mathrm{B}^{+}\to \psi(2 \mathrm{S}) \mathrm{ K }^{+}$ as normalization, to be (4.0 $\pm$ 0.4 (stat) $\pm$ 0.6 (syst) $\pm$ 0.2 ($\mathcal{B})$)$\times$ 10$^{-6}$, where the third uncertainty is from the imprecision in the normalization channel.