pp与LHCb碰撞中的玻色-爱因斯坦关联和b-bbar关联
Bose-Einstein correlations and b-bbar correlations in pp collisions with LHCb
摘要:
利用LHCb实验研究了质心能量为7 TeV和8 TeV的质子-质子碰撞中同号带电π介子的玻色-爱因斯坦关联和运动学b-bbar关联。研究了玻色-爱因斯坦关联参数与带电粒子多重数的关系。相关半径被观察到增加的多重性,而混沌参数减小。用包含的b夸克衰变到jpsi研究了b-bbar关联,发现与理论预测符合得很好。
英文摘要:
Bose-Einstein correlations for same-sign charged pions and kinematic b-bbar correlations in proton-proton collisions at a center-of-mass energy of 7 and 8 TeV are studied by the LHCb experiment. The dependence of Bose-Einstein correlation parameters on the charged-particle multiplicity is investigated. The correlation radius is observed to increase with multiplicity, while the chaoticity parameter decreases. The b-bbar correlations are studied using inclusive b quark decays to jpsi and are found to be in good agreement with theoretical predictions.
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