The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at √s=200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of pT≥5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high pT.
The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at √s=200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of pT≥5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high pT.
Authors: A Andronic; F Arleo; R Arnaldi; A Beraudo; E Bruna; D Caffarri; Z Conesa Del Valle; J G Contreras; T Dahms; A Dainese; M Djordjevic; E G Ferreiro; H Fujii; P-B Gossiaux; R Granier de Cassagnac; C Hadjidakis; M He; H van Hees; W A Horowitz; R Kolevatov; B Z Kopeliovich; J-P Lansberg; M P Lombardo; C Lourenço; G Martinez-Garcia; L Massacrier; C Mironov; A Mischke; M Nahrgang; M Nguyen; J Nystrand; S Peigné; S Porteboeuf-Houssais; I K Potashnikova; A Rakotozafindrabe; R Rapp; P Robbe; M Rosati; P Rosnet; H Satz; R Schicker; I Schienbein; I Schmidt; E Scomparin; R Sharma; J Stachel; D Stocco; M Strickland; R Tieulent; B A Trzeciak; J Uphoff; I Vitev; R Vogt; K Watanabe; H Woehri; P Zhuang Journal: Eur Phys J C Part Fields Date: 2016-02-29 Impact factor: 4.590
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