Photon — jet correlations measurement with ALICE at LHC: a feasibility study in proton-proton collisions
Photon — jet correlations measurement with ALICE at LHC: a feasibility study in proton-proton collisions
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DOI：
10.1007/s12648-011-0106-7
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发表时间：
2011-07
影响因子：
2
通讯作者：
Y. Mao;G. C. Balbastre;Y. Schutz;D. Zhou
中科院分区：
文献类型：
--
作者：
Y. Mao;G. C. Balbastre;Y. Schutz;D. Zhou
在大型强子对撞机ALICE实验的背景下，讨论了测量直接孤立光子和带电强子之间不平衡分布的可行性。用蒙特卡罗模拟方法研究了质子与质子碰撞的情况。给出了快速识别和抑制π衰减光子的性能。这样的测量将提供探测能量低于50 GeV的射流碰撞形成的介质的可能性，这种介质在重离子环境中无法重建。
The feasibility to measure the imbalance distribution between direct isolated photons and charged hadrons is discussed within the context of the ALICE experiment at LHC. The case of proton-proton collisions atTeV is studied with Monte-Carlo simulations. Performances for prompt photon identification and rejection of theπ0decay photons are presented. Such a measurement will offer the possibilty to probe the medium formed inAAcollisions with jets of energies below 50 GeV, which cannot be reconstructed in the heavy-ion environment.