Measurement of the relative rate of prompt \(\chi_{c0}\), \(\chi_{c1}\) and \(\chi_{c2}\) production at \(\sqrt{s}=7\)TeV

Measurement of the relative rate of prompt \(\chi_{c0}\), \(\chi_{c1}\) and \(\chi_{c2}\) production at \(\sqrt{s}=7\)TeV

Prompt production of charmonium \(\chi_{c0}\), \(\chi_{c1}\) and \(\chi_{c2}\) mesons is studied using proton-proton collisions at the LHC at a centre-of-mass energy of \(\sqrt{s}=7\)TeV. The \(\chi_{c}\) mesons are identified through their decay to \(J/\psi\gamma\), with \(J/\psi\to\mu^+\mu^-\) usi...

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Veröffentlicht in:arXiv.org 2018-08
Hauptverfasser: collaboration, LHCb, Alves, A A, Archilli, F, Artamonov, A, Balagura, V, Bifani, S, Bocci, V, Bondar, A, Bozzi, C, Brook, N H, Casse, G, Cattaneo, M, Chen, P, Chrzaszcz, M, Ciba, K, Coca, C, Cogan, J, Collins, P, Cook, A, Craik, D C, Derkach, D, Deschamps, O, Dettori, F, Dogaru, M, Dziurda, A, Dzyuba, A, Eitschberger, U, Farinelli, C, Farry, S, Ferguson, D, Fitzpatrick, C, Fontanelli, F, Frei, C, A Gallas Torreira, Gaspar, C, Gersabeck, E, Graziani, G, Gushchin, E, Haen, C, Hansmann-Menzemer, S, Harrison, J, Heijne, V, Hombach, C, John, M, Jost, B, Korolev, M, Kudryavtsev, V, La Thi, V N, Lambert, D, Langenbruch, C, Liles, M, Lopez-March, N, Luo, H, Maev, O, Märki, R, Martellotti, G, D Martinez Santos, Matteuzzi, C, McCarthy, J, McNab, A, Mountain, R, Niess, V, Nomerotski, A, E Perez Trigo, Petrolini, A, Olloqui, E Picatoste, Playfer, S, Prouve, C, Punzi, G, Rademacker, J H, Richards, A, Robbe, P, Romanovsky, V, P Ruiz Valls, Sabatino, G, Sagidova, N, B Sanmartin Sedes, Sannino, M, Satta, A, Schmelling, M, Sciubba, A, Sokoloff, M D, Soomro, F, Souza De Paula, B, Sparkes, A, Stagni, F, Szczekowski, M, Szumlak, T, Teodorescu, E, Tisserand, V, Ustyuzhanin, A, Velthuis, J J, Vesterinen, M, Voong, D, Wallace, C, Wiechczynski, J, Williams, M, Witek, M, Zhelezov, A, Zhong, L
Format: Artikel
Sprache:eng
Schlagworte:
Large Hadron Collider
Luminosity
Mesons
Particle collisions
Particle production
Photons
Transverse momentum
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Zusammenfassung:Prompt production of charmonium \(\chi_{c0}\), \(\chi_{c1}\) and \(\chi_{c2}\) mesons is studied using proton-proton collisions at the LHC at a centre-of-mass energy of \(\sqrt{s}=7\)TeV. The \(\chi_{c}\) mesons are identified through their decay to \(J/\psi\gamma\), with \(J/\psi\to\mu^+\mu^-\) using photons that converted in the detector. A data sample, corresponding to an integrated luminosity of \(1.0\mathrm{fb}^{-1}\) collected by the LHCb detector, is used to measure the relative prompt production rate of \(\chi_{c1}\) and \(\chi_{c2}\) in the rapidity range \(2.0
ISSN:2331-8422
DOI:10.48550/arxiv.1307.4285