Measurement of the Y(1S) pair production cross section and search for resonances decaying to Y(1S)μ+μ- 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 Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1)
Dergi ISSN 0370-2693 Dergi Bilgileri (2020)
Makale Dili İngilizce Basım Tarihi 09-2020
Cilt / Sayı / Sayfa 808 / 1 / 135578–0 DOI 10.1016/j.physletb.2020.135578
Makale Linki https://doi.org/10.1016/j.physletb.2020.135578
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The fiducial cross section for Y (1 S) pair production in proton-proton collisions at a center-of-mass energy of 13 TeV in the region where both Y (1 S) mesons have an absolute rapidity below 2.0 is measured to be 79±11 (stat)±6 (syst)±3 (B) pb assuming the mesons are produced unpolarized. The last uncertainty corresponds to the uncertainty in the Y (1 S) meson dimuon branching fraction. The measurement is performed in the final state with four muons using proton-proton collision data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb− 1. This process serves as a standard model reference in a search for narrow resonances decaying to Y (1 S) μ+ μ− in the same final state. Such a resonance could indicate the existence of a tetraquark that is a bound state of two b quarks and two b¯ antiquarks. The tetraquark search is performed for masses in the vicinity of …
Anahtar Kelimeler
CMS | Upsilon