Measurement of the ?b Polarization and Angular Parameters in ?b?J/?? Decays From pp Collisions at ?s=7 and 8 TeV
Yükleniyor...
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
Özet
An analysis of the bottom baryon decay ?b?J/?(??+??)?(?p??) is performed to measure the ?b polarization and three angular parameters in data from pp collisions at ?s=7 and 8 TeV, collected by the CMS experiment at the Large Hadron Collider. The ?b polarization is measured to be 0.00±0.06(stat)±0.06(syst) and the parity-violating asymmetry parameter is determined to be 0.14±0.14(stat)±0.10(syst). The measurements are compared to various theoretical predictions, including those from perturbative quantum chromodynamics.
Açıklama
Anahtar Kelimeler
CMS, Physics
Kaynak
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
Sayı
Künye
PHYSICAL REVIEW D 97, 072010 (2018)
