论文标题
最近的CMS和CMS-TOTEM结果衍射和独家生产
Recent CMS and CMS-TOTEM results on diffraction and exclusive production
论文作者
论文摘要
排他性和衍射物理学测量对于更好地理解QCD的非扰动制度很重要。本文提出了CMS实验的两个最新结果。中央独家$π^+π^ - $生产的总和差分横截面在$ p _ {\ mathrm {t}}}（π）> 0.2〜 $ gev/$ c $和$ c $和$ | |η（π）| <2.4 $运动区域。不变的质量分布由连续体的总和和四个干扰性的Breit-Wigner函数拟合。在本文的第二部分中，提出了单个衍射二极管的测量，通过使用图腾分析的质子标记功能来研究它们。进行了联合CMS数据研究，并以0.03 <| t |测量了总截面和差分截面。 <1.0〜 $ GEV $^2 $和$ 0 <ξ<0.1 $运动区域。
Exclusive and diffractive physics measurements are important for the better understanding of the non-perturbative regime of QCD. Two recent results of the CMS experiment is presented in this paper. The total and differential cross sections of central exclusive $π^+π^-$ production are measured at 5.02 and 13 TeV in the $p_{\mathrm{T}}(π) > 0.2~$GeV/$c$ and $|η(π)| < 2.4$ kinematic region. The invariant mass distribution is fitted by the sum of a continuum and four interfering relativistic Breit-Wigner functions. In the second part of the paper the measurement of the single diffractive dijets is presented, which are studied by using proton tagging capabilities of the TOTEM analysis. A joint CMS-TOTEM study is carried out and the total and differential cross sections are measured in the $0.03 < |t| < 1.0~$GeV$^2$ and $0 < ξ< 0.1$ kinematic region.
