论文标题
PP，P-PB和PB-PB碰撞与LHC处的PP，P-PB和PB-PB碰撞的低质量二元测量
Low-mass dielectron measurements in pp, p-Pb, and Pb-Pb collisions with ALICE at the LHC
论文作者
论文摘要
电介子是对在超相关的重型离子碰撞中创建的QCD物质的绝佳探针，因为它们是在碰撞的整个演变中发出的，并且不会与培养基相互作用。为了隔离QGP信号，需要测量真空中的二元子产生及其由于冷核物质而导致的修饰。我们介绍并讨论了质子 - 普罗顿碰撞中低磁场检测器设置的结果，$ \ sqrt {s} = 13 $ tev，以及在PP，P-PB和PB-PB碰撞中的二元发射的测量，$ \ sqrt {s _ {\ rm nn} = 5 $ TEV。
Dielectrons are an excellent probe for the QCD matter created in created in ultra-relativistic heavy-ion collisions, since they are emitted during the whole evolution of the collision and do not interact strongly with the medium. To isolate the QGP signals, measurement of the dielectron production in vacuum and its modifications due to the presence of cold nuclear matter is necessary. We present and discuss results from a low magnetic field detector setup in proton-proton collisions at $\sqrt{s} = 13$ TeV, as well as the measurement of dielectron production in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5$ TeV.
