The Beam Energy Scan Phase II program (BES-II) at the Relativistic Heavy Ion Collider (RHIC) is examining the center-of-mass collision energy region from 7.7 GeV to 19.6 GeV which was determined from the results of BES-I. Key measurements such as the net proton kurtosis, the directed flow and the dilepton production are possible during BES-II with an order of magnitude better statistics due to the Low Energy RHIC electron Cooling (LEReC) upgrade and several STAR detector upgrades. Beyond BES-II, the STAR Collaboration is currently designing, constructing, and installing a suite of new detectors in the forward rapidity region (2.5 < η < 4), enabling a program of novel measurements in pp , pA and AA collisions. To fully explore this physics, the forward rapidity region needs superior detection capability for neutral pions, photons, electrons, jets and leading hadrons by adding charged particle tracking and electromagnetic and hadronic cal...

中文翻译：

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BES-II的STAR探测器升级，并且具有超前速度

相对论重离子对撞机（RHIC）的束能量扫描II期程序（BES-II）正在研究从BES-I结果确定的7.7 GeV到19.6 GeV的质心碰撞能量区域。由于低能RHIC电子冷却（LEReC）升级和几款STAR探测器升级，在BES-II期间可能进行诸如净质子峰度，定向流和双链产生等关键测量，并且统计量提高了一个数量级。除了BES-II以外，STAR协作组织目前还在正向速度区域（2.5 <η<4）中设计，建造和安装一套新的检测器，从而可以对pp，pA和AA碰撞进行新颖的测量。为了全面探索这一物理学，正向速度区域需要对中性离子，光子，电子，