Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV

The CMS collaboration

doi:10.1007/JHEP04(2013)154

Measurement of the X(3872) production cross section via decays to J/ψπ⁺π⁻ in pp collisions at √s = 7 TeV

The CMS collaboration

Physics

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Abstract

The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ⁺π⁻, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb⁻¹. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ⁺π⁻ is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π⁺π⁻ mass spectrum of the J/ψπ⁺π⁻ system in the X(3872) decays is also investigated.

Original language	English
Article number	154
Journal	Journal of High Energy Physics
Volume	2013
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2013)154
State	Published - Apr 29 2013

Keywords

Hadron-Hadron Scattering

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10.1007/JHEP04(2013)154

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@article{eba56941fc5b4c188ba7ed801caf89a7,

title = "Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV ",

abstract = "The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.",

keywords = "Hadron-Hadron Scattering",

author = "{The CMS collaboration} and S. Chatrchyan and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and E. Aguilo and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, {V. M.} and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and M. Pernicka and D. Rabady and B. Rahbaran and C. Rohringer and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Waltenberger and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and M. Bansal and S. Bansal and T. Cornelis and {De Wolf}, {E. A.} and X. Janssen and S. Luyckx and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and S. Kunori and A. Whitbeck and N. Akchurin and Lee, {S. W.} and I. Volobouev",

year = "2013",

month = apr,

day = "29",

doi = "10.1007/JHEP04(2013)154",

language = "English",

volume = "2013",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV

AU - The CMS collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

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 - Pernicka, M.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Luyckx, S.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Kunori, S.

AU - Whitbeck, A.

AU - Akchurin, N.

AU - Lee, S. W.

AU - Volobouev, I.

PY - 2013/4/29

Y1 - 2013/4/29

N2 - The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.

AB - The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=84935906202&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2013)154

DO - 10.1007/JHEP04(2013)154

M3 - Article

AN - SCOPUS:84935906202

SN - 1126-6708

VL - 2013

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 154

ER -

Measurement of the X(3872) production cross section via decays to J/ψπ⁺π⁻ in pp collisions at √s = 7 TeV

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Keywords

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