Measurement of the Dependence of the Hadron Production Fraction Ratios fs/fu and fd/fu on B Meson Kinematic Variables in Proton-Proton Collisions at √s=13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review Letters (Q1) | ||
| Dergi ISSN | 0031-9007 Dergi Bilgileri (2023) | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2023 |
| Cilt / Sayı / Sayfa | 131 / 12 / 121901–0 | DOI | 10.1103/PhysRevLett.131.121901 |
| Makale Linki | http://www.scopus.com/inward/record.url?eid=2-s2.0-85173420958&partnerID=MN8TOARS | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The dependence of the ratio between the B s 0 and B+ hadron production fractions, fs/fu, on the transverse momentum (p T) and rapidity of the B mesons is studied using the decay channels B s 0→ J/ψ ϕ and B+→ J/ψ K+. The analysis uses a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and corresponding to an integrated luminosity of 61.6 fb-1. The fs/fu ratio is observed to depend on the B p T and to be consistent with becoming asymptotically constant at large p T. No rapidity dependence is observed. The ratio of the B 0 to B+ meson production fractions, fd/fu, is also measured, for the first time in proton-proton collisions, using the B 0→ J/ψ K* 0 decay channel. The result is found to be within 1 standard deviation of unity and independent of p T and rapidity, as expected from isospin invariance. |
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