Measurement of the ratio of the production cross sections times branching fractions of $B_{c}^{\pm} \to J/\psi \pi^{\pm}$ and $B^{\pm} \to J/\psi K^{\pm}$ and $\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm}\pi^{\pm}\pi^{\mp})/\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm})$ in pp collisions at $\sqrt{s} =$ 7 TeV

Khachatryan, Vardan

doi:10.1007/JHEP01(2015)063

Title: Measurement of the ratio of the production cross sections times branching fractions of $$B_{c}^{\pm} \to J/\psi \pi^{\pm}$$ and $$B^{\pm} \to J/\psi K^{\pm}$$ and $$\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm}\pi^{\pm}\pi^{\mp})/\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm})$$ in pp collisions at $$\sqrt{s} =$$ 7 TeV

Journal Article · Tue Jan 13 00:00:00 EST 2015 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP01(2015)063· OSTI ID:1234858

Khachatryan, Vardan ^[1]

Yerevan Physics Inst. (YerPhI) (Armenia). et al.

The ratio of the production cross sections times branching fractions (σ(B^±_c)B(B^±_c→J/ψπ^±))/(σ(B^±)B(B^±→J/ψK^±)) is studied in proton-proton collisions at a center of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires B _c ^± and B^± mesons with transverse momentum p T > 15 GeV and rapidity |y|< 1.6. The data sample corresponds to an integrated luminosity of 5.1 fb^-1. The ratio is determined to be [0.48±0.05(stat)± 0.03(syst)±0.05 (τBc)]%. The B c ^± → J/ψπ^± π ^± π ^∓ decay is also observed in the same data sample. Using a model-independent method developed to measure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions B(B^±_c→J/ψπ^±π^±π^∓)/B(B^±_c→J/ψπ^±) is measured to be 2.55±0.80(stat)±0.33(syst)^+0.04_-0.01(τ_Bc), consistent with the previous LHCb result.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1234858

Report Number(s):: FERMILAB-PUB-14-440-CMS; CERN-PH-EP-2014-248; CMS-BPH-12-011; arXiv eprint number arXiv:1410.5729; TRN: US1500044

Journal Information:: Journal of High Energy Physics (Online), Vol. 2015, Issue 1; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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References (12)

Observation of the Decay $B_{c}^{+} \to B_{s}^{0} π^{+}$ Aaij, R.; Adeva, B.; Adinolfi, M. Physical Review Letters, Vol. 111, Issue 18 https://doi.org/10.1103/PhysRevLett.111.181801	journal	November 2013
Study of the Cabibbo-suppressed decay modes D0→π−π+ and D0→K−K+ Link, J. M.; Reyes, M.; Yager, P. M. Physics Letters B, Vol. 555, Issue 3-4 https://doi.org/10.1016/S0370-2693(03)00053-4	journal	March 2003
BCVEGPY2.0: An upgraded version of the generator BCVEGPY with the addition of hadroproduction of the P-wave states Chang, Chao-Hsi; Wang, Jian-Xiong; Wu, Xing-Gang Computer Physics Communications, Vol. 174, Issue 3 https://doi.org/10.1016/j.cpc.2005.09.008	journal	February 2006
The EvtGen particle decay simulation package Lange, David J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 462, Issue 1-2 https://doi.org/10.1016/S0168-9002(01)00089-4	journal	April 2001
Geant4 toolkit for simulation of HEP experiments Ivanchenko, V. N. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 502, Issue 2-3 https://doi.org/10.1016/S0168-9002(03)00538-2	journal	April 2003
PYTHIA 6.4 physics and manual Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter Journal of High Energy Physics, Vol. 2006, Issue 05 https://doi.org/10.1088/1126-6708/2006/05/026	journal	May 2006
First Observation of the Decay $B_{c}^{+} \to J / ψ π^{+} π^{-} π^{+}$ Aaij, R.; Abellan Beteta, C.; Adeva, B. Physical Review Letters, Vol. 108, Issue 25 https://doi.org/10.1103/PhysRevLett.108.251802	journal	June 2012
Measurements of $B_{c}^{+}$ Production and Mass with the $B_{c}^{+} \to J / ψ π^{+}$ Decay Aaij, R.; Abellan Beteta, C.; Adametz, A. Physical Review Letters, Vol. 109, Issue 23 https://doi.org/10.1103/PhysRevLett.109.232001	journal	December 2012
Prospects for the B c studies at LHCb Gouz, I. P.; Kiselev, V. V.; Likhoded, A. K. Physics of Atomic Nuclei, Vol. 67, Issue 8 https://doi.org/10.1134/1.1788046	journal	August 2004
Improving vertex position determination by using a kinematic fit Forden, G. E.; Saxon, D. H. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 248, Issue 2-3 https://doi.org/10.1016/0168-9002(86)91031-4	journal	August 1986
BCVEGPY: an event generator for hadronic production of the Bc meson Chang, Chao-Hsi; Driouichi, Chafik; Eerola, Paula Computer Physics Communications, Vol. 159, Issue 3 https://doi.org/10.1016/j.cpc.2004.02.005	journal	June 2004
Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV collaboration, The CMS Journal of Instrumentation, Vol. 7, Issue 10 https://doi.org/10.1088/1748-0221/7/10/P10002	journal	October 2012

Cited By (5)

Photoproduction of the $B_{c}^{(*)}$ meson at the LHeC Bi, Huan-Yu; Zhang, Ren-You; Han, Hua-Yong Physical Review D, Vol. 95, Issue 3 https://doi.org/10.1103/physrevd.95.034019	journal	February 2017
Observation of Two Excited $B_{c}^{+}$ States and Measurement of the $B_{c}^{+} (2 S)$ Mass in $p p$ Collisions at $\sqrt{s} = 13 TeV$ Sirunyan, A. M.; Tumasyan, A.; Adam, W. Physical Review Letters, Vol. 122, Issue 13 https://doi.org/10.1103/physrevlett.122.132001	journal	April 2019
Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016 Amhis, Y.; Banerjee, Sw.; Ben-Haim, E. The European Physical Journal C, Vol. 77, Issue 12 https://doi.org/10.1140/epjc/s10052-017-5058-4	journal	December 2017
Observation of Two Excited Bc+ States and Measurement of the Bc+ (2S) Mass in pp Collisions at s =13 TeV Collaboration, Cms; M., Sirunyan, Albert; Malte, Backhaus, ETH Zurich https://doi.org/10.3929/ethz-b-000338780	text	January 2019
Impact of polarization observables and Bc→τν on new physics explanations of the b→cτν anomaly Blanke, Monika; Crivellin, Andreas; De Boer, Stefan American Physical Society https://doi.org/10.5167/uzh-174374	text	January 2019

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Measurement of the ratio of the production cross sections times branching fractions of $B_{c}^{\pm} \to J/\psi \pi^{\pm}$ and $B^{\pm} \to J/\psi K^{\pm}$ and $\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm}\pi^{\pm}\pi^{\mp})/\mathcal{B}(B_{c}^{\pm} \to J/\psi \pi^{\pm})$ in pp collisions at $\sqrt{s} =$ 7 TeV [Supplemental Data] Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen https://doi.org/10.17182/hepdata.39386 The current record is supplemented by this dataset	dataset	March 2016
Measurement of the ratio of the production cross sections times branching fractions of B _c ^± → J/ψπ ^± and B^± → J/ψK ^± and B(B^±_c→J/ψπ^±π^±π^∓)/B(B^±_c→J/ψπ^±) in pp collisions at √s = 7 TeV [Supplemental Data] https://doi.org/10.17182/hepdata.39386.v1 The current record is supplemented by this dataset	dataset	January 2015
Table 1 Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen https://doi.org/10.17182/hepdata.39386.v1/t1 The current record is supplemented by this dataset	dataset	January 2016
Table 2 Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen https://doi.org/10.17182/hepdata.39386.v1/t2 The current record is supplemented by this dataset	dataset	January 2016

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