A Search For Pair Production Of New Light Bosons Decaying İnto Muons İn Proton-Proton Collisions at 13 TeV
Yükleniyor...
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
The CMS Collaboration
Erişim Hakkı
Özet
A search for new light bosons decaying into muon pairs is presented using a data sample corresponding to an integrated luminosity of 35.9fb?1of proton-proton collisions at a center-of-mass energy ?s=13 TeV, collected with the CMS detector at the CERN LHC. The search is model independent, only requiring the pair production of a new light boson and its subsequent decay to a pair of muons. No significant deviation from the predicted background is observed. A model independent limit is set on the product of the production cross section times branching fraction to dimuons squared times acceptance as a function of new light boson mass. This limit varies between 0.15 and 0.39fbover a range of new light boson masses from 0.25 to 8.5GeV. It is then interpreted in the context of the next-to-minimal supersymmetric standard model and a dark supersymmetry model that allows for nonnegligible light boson lifetimes. In both cases, there is significant improvement over previously published limits.
Açıklama
Anahtar Kelimeler
CMS, New light boson, Supersymmetry, Hidden sector, Dark photon, Muon
Kaynak
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
Sayı
Künye
Physics Letters B 796(2019)131–154
