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arXiv 0903.1330hep-phhep-exnucl-exnucl-th
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大型强子对撞机重离子计划的预测

Predictions for the heavy-ion programme at the Large Hadron Collider

N. Armesto

摘要:

我回顾了在欧洲核子研究中心的大型强子对撞机(LHC)的重离子计划的主要预测,可在2009年4月初。我首先回顾了欧洲核子研究中心(CERN)的超级质子同步加速器(SPS)和英国国家实验室(BNL)的相对论重离子对撞机(RHIC)测量的实验数据。这些主张将用于稍后讨论LHC的新机会。接下来,我将回顾对LHC的一般性、定性期望。然后我转向定量预测:首先,我分析直接表征碰撞中产生的介质的观测值-散装观测值或软探针-:多重性,集体流动,低横向动量的强子化学,相关性和波动。其次,我移动到校准探针的介质,即通常那些期望在没有任何介质可以描述在量子色动力学(QCD)使用微扰技术(pQCD),通常被称为硬探针。我讨论粒子生产在大横动量和喷流,重夸克和夸克偶素生产,光子和双轻子。最后,在简要回顾了PA碰撞,我结束了一个总结和讨论的潜力,在大型强子对撞机的测量-特别是那些在第一次运行-进一步证实,或者相反,反证的图片中出现的SPS和RHIC数据之间的对抗,和理论模型。

英文摘要:

I review the main predictions for the heavy-ion programme at the Large Hadron Collider (LHC) at CERN, as available in early April 2009. I begin by remembering the standard claims made in view of the experimental data measured at the Super Proton Synchrotron (SPS) at CERN and at the Relativistic Heavy Ion Collider (RHIC) at the BNL. These claims will be used for later discussion of the new opportunities at the LHC. Next I review the generic, qualitative expectations for the LHC. Then I turn to quantitative predictions: First I analyze observables which characterize directly the medium produced in the collisions - bulk observables or soft probes -: multiplicities, collective flow, hadrochemistry at low transverse momentum, correlations and fluctuations. Second, I move to calibrated probes of the medium i.e. typically those whose expectation in the absence of any medium can be described in Quantum Chromodynamics (QCD) using perturbative techniques (pQCD), usually called hard probes. I discuss particle production at large transverse momentum and jets, heavy-quark and quarkonium production, and photons and dileptons. Finally, after a brief review of pA collisions, I end with a summary and a discussion about the potentiality of the measurements at the LHC - particularly those made during the first run - to further substantiate or, on the contrary, disproof the picture of the medium that has arisen from the confrontation between the SPS and RHIC data, and theoretical models.

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。

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