arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1109.4807hep-exnucl-ex
收藏

用ALICE实验研究Pb-Pb碰撞中的K0s和Λ产生

K0s and Λ production in Pb--Pb collisions with the ALICE experiment

Iouri Belikov

摘要:

利用ALICE实验研究了\sqrt{s_NN} =2.76 TeV的Pb-Pb碰撞和\sqrt{s} =0.9和7 TeV的pp碰撞中的K_0和λ产生.的K 0和λ粒子重建通过他们的V0衰变拓扑结构,使他们的识别高横动量。提取了在中心性仓和横向动量范围为1 ~ 6 GeV/c的Pb-Pb碰撞中相应的重子/介子比随横向动量的变化关系。并与LHC能量为0.9和7 TeV的pp事件以及RHIC能量为\sqrt{s_NN} = 62.4和200 GeV的Au-Au碰撞中的测量结果进行了比较。

英文摘要:

We present the study of K0s and Lambda production performed with the ALICE experiment at the LHC in Pb--Pb collisions at \sqrt{s_NN}=2.76 TeV and pp collisions at \sqrt{s}=0.9 and 7 TeV. The K0s and Lambda particles are reconstructed via their V0 decay topology allowing their identification up to high transverse momenta. The corresponding baryon/meson ratios as a function of transverse momentum are extracted for Pb--Pb collisions in centrality bins and in the transverse momentum range from 1 to 6 GeV/c. They are also compared with those measured in pp events at the LHC energies of 0.9 and 7 TeV as well as in Au--Au collisions at \sqrt{s_NN} = 62.4 and 200 GeV from RHIC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑