Measurement of Bc (2S)+ and Bc∗ (2S)+ cross section ratios in proton-proton collisions at s =13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physical Review D (Q1)
Dergi ISSN 2470-0010 Dergi Bilgileri (2020)
Makale Dili İngilizce Basım Tarihi 11-2020
Cilt / Sayı / Sayfa 102 / 9 / – DOI 10.1103/PhysRevD.102.092007
Makale Linki https://arxiv.org/abs/2008.08629
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The ratios of the B(2S) to B, B(2S) to B, and B(2S) to B(2S) production cross sections are measured in proton-proton collisions at 13 TeV, using a data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 143 fb. The three measurements are made in the B meson phase space region defined by the transverse momentum 15 GeV and absolute rapidity 2.4, with the excited B(2S) states reconstructed through the B, followed by the B J/ and J/ decays. The B(2S) to B, B(2S) to B, and B(2S) to B(2S) cross section ratios, including the unknown B(2S) B branching fractions, are (3.47 0.63 (stat) 0.33 (syst))%, (4.69 0.71 (stat) 0.56 (syst))%, and 1.35 0.32 (stat) 0.09 (syst), respectively. None of these ratios shows a significant dependence on the or of the B meson. The normalized dipion invariant mass distributions from the decays B(2S) B are also reported.
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