### Abstract

The ratio of the production cross sections times branching fractions (Formula presented.)(Formula presented.) 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 (Formula presented.)(Formula presented.). 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 (Formula presented.)(Formula presented.) is measured to be (Formula presented.)(Formula presented.), consistent with the previous LHCb result.[Figure not available: see fulltext.].

Original language | English |
---|---|

Article number | 63 |

Journal | Journal of High Energy Physics |

Volume | 2015 |

Issue number | 1 |

DOIs | |

Publication status | Published - 2015 |

### Fingerprint

### Keywords

- B physics
- Branching fraction
- Hadron-Hadron Scattering

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

_{c}

^{±}→ J/ψπ

^{±}and B

^{±}→ J/ψK

^{±}and (Formula presented.) in pp collisions at (Formula presented.) TeV.

*Journal of High Energy Physics*,

*2015*(1), [63]. https://doi.org/10.1007/JHEP01(2015)063

**Measurement of the ratio of the production cross sections times branching fractions of B _{c}^{±}→ J/ψπ^{±} and B^{±} → J/ψK^{±} and (Formula presented.) in pp collisions at (Formula presented.) TeV.** / The CMS collaboration.

Research output: Contribution to journal › Article

_{c}

^{±}→ J/ψπ

^{±}and B

^{±}→ J/ψK

^{±}and (Formula presented.) in pp collisions at (Formula presented.) TeV',

*Journal of High Energy Physics*, vol. 2015, no. 1, 63. https://doi.org/10.1007/JHEP01(2015)063

_{c}

^{±}→ J/ψπ

^{±}and B

^{±}→ J/ψK

^{±}and (Formula presented.) in pp collisions at (Formula presented.) TeV. Journal of High Energy Physics. 2015;2015(1). 63. https://doi.org/10.1007/JHEP01(2015)063

}

TY - JOUR

T1 - Measurement of the ratio of the production cross sections times branching fractions of Bc±→ J/ψπ± and B± → J/ψK± and (Formula presented.) in pp collisions at (Formula presented.) TeV

AU - The CMS collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Gonzalez, J. Suarez

AU - Alderweireldt, S.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Blekman, F.

AU - Radi, A.

PY - 2015

Y1 - 2015

N2 - The ratio of the production cross sections times branching fractions (Formula presented.)(Formula presented.) 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 Bc± and B± mesons with transverse momentum pT > 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 (Formula presented.)(Formula presented.). The Bc± → 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 (Formula presented.)(Formula presented.) is measured to be (Formula presented.)(Formula presented.), consistent with the previous LHCb result.[Figure not available: see fulltext.].

AB - The ratio of the production cross sections times branching fractions (Formula presented.)(Formula presented.) 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 Bc± and B± mesons with transverse momentum pT > 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 (Formula presented.)(Formula presented.). The Bc± → 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 (Formula presented.)(Formula presented.) is measured to be (Formula presented.)(Formula presented.), consistent with the previous LHCb result.[Figure not available: see fulltext.].

KW - B physics

KW - Branching fraction

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=84921417485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921417485&partnerID=8YFLogxK

U2 - 10.1007/JHEP01(2015)063

DO - 10.1007/JHEP01(2015)063

M3 - Article

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 1

M1 - 63

ER -