(Anti-)deuteron production and anisotropic flow measured with ALICE at the LHC

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• 作者：Ramona Lea ; for the ALICE Collaboration
• 关键词：Heavy-ion collisions ; deuteron ; elliptic flow
• 刊名：Nuclear Physics A
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：956
• 期：Complete
• 页码：264-267
• 全文大小：225 K

文摘

The high abundance of (anti-)deuterons in the statistics gathered in Run 1 of the LHC and the excellent performance of the ALICE setup allow for the simultaneous measurement of the elliptic flow and the deuteron production rates with a large transverse momentum (p_T) reach. The (anti-) deuterons are identified using the specific energy loss in the time projection chamber and the velocity information in the time-of-flight detector. The elliptic flow of (anti-)deuterons can provide insight into the production mechanisms of particles in heavy-ion collisions. Quark coalescence is one of the approaches to describe the elliptic flow of hadrons, while the production of light nuclei can be also depicted as a coalescence of nucleons. In these proceedings, the measured v₂ of deuterons produced in Pb–Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76\text{TeV}$ will be compared to expectations from coalescence and hydrodynamic models.