Observation of a peaking structure in the J/ψφ mass spectrum from B± → J/ψφK± decays
Yazarlar (1)
| Makale Türü |
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 (2014) | ||
| Makale Dili | İngilizce | Basım Tarihi | 06-2014 |
| Cilt / Sayı / Sayfa | 734 / 1 / 261–281 | DOI | 10.1016/j.physletb.2014.05.055 |
| Makale Linki | https://doi.org/10.1016/j.physletb.2014.05.055 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
|
||
| Özet |
| A peaking structure in the J/ψ ϕ mass spectrum near threshold is observed in B±→ J/ψ ϕ K±decays, produced in pp collisions at s= 7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis of the dimuon decay mode of the J/ψ, corresponds to an integrated luminosity of 5.2 fb− 1. Fitting the structure to an S-wave relativistic Breit–Wigner lineshape above a three-body phase-space nonresonant component gives a signal statistical significance exceeding five standard deviations. The fitted mass and width values are m= 4148.0±2.4 (stat.)±6.3 (syst.) MeV and Γ= 28− 11+ 15 (stat.)±19 (syst.) MeV, respectively. Evidence for an additional peaking structure at higher J/ψ ϕ mass is also reported. |
| Anahtar Kelimeler |
Science Direct
Observation of a peaking structure in the J/ψφ mass spectrum from B± → J/ψφK± decays
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 157 |
| Scopus | 167 |
| Google Scholar | 305 |