论文标题
雪人2021/22兴趣信：LHC的前射热仪
Snowmass 2021/22 Letter of Interest: A Forward Calorimeter at the LHC
论文作者
论文摘要
提出了向前的电磁和强烈的量热计（焦点）作为对爱丽丝实验的升级，将在LS3期间安装在LHC的2027--2029的LS3期间。该焦点扩展了爱丽丝的范围，爱丽丝的范围是为探索核子和核的小$ x $ parton结构的新功能而设计的。该焦点的主要目的是在PP和P-PB碰撞中对直接光子和喷气器的高精度包容度测量以及一致的伽马射射射线和喷射喷射测量。 These measurements by FoCal constitute an essential part of a comprehensive small-$x$ program at the LHC down to $x\sim10^{-6}$ and over a large range of $Q^2$ with a broad array of complementary probes, comprising -- in addition to the photon measurements by FoCal and LHCb -- Drell-Yan and open charm measurements planned by LHCb, as well as photon-induced reactions由所有LHC实验进行。
A forward electromagnetic and hadronic calorimeter (FoCal) was proposed as an upgrade to the ALICE experiment, to be installed during LS3 for data-taking in 2027--2029 at the LHC. The FoCal extends the scope of ALICE, which was designed for the comprehensive study of hot and dense partonic matter, by adding new capabilities to explore the small-$x$ parton structure of nucleons and nuclei. The primary objective of the FoCal is high-precision inclusive measurement of direct photons and jets, as well as coincident gamma-jet and jet-jet measurements, in pp and p--Pb collisions. These measurements by FoCal constitute an essential part of a comprehensive small-$x$ program at the LHC down to $x\sim10^{-6}$ and over a large range of $Q^2$ with a broad array of complementary probes, comprising -- in addition to the photon measurements by FoCal and LHCb -- Drell-Yan and open charm measurements planned by LHCb, as well as photon-induced reactions performed by all LHC experiments.
