论文标题
LHC处的一个正向质子测量
Semiexclusive dilepton production in proton-proton collisions with one forward proton measurement at the LHC
论文作者
论文摘要
我们讨论了光子 - 光子融合的机制，触发了质子 - 蛋白质碰撞中的DILEPTON产生，并在主检测器中迅速间隙和一个正向质子检测器中的一个正向质子。这对应于Atlas+AFP和CMS+PPS进行的LHC测量。包括中间光子的横向动量和由形式因素和结构函数表达的光子通量。此外，质子测量的影响并削减了$ξ_{1/2} $，$ m_ {ll} $，$ y_ {ll} $，$ p_ {t，ll} $分布，横截面和间隙生存因子，对于双重弹性和单分离的过程都可以识别。分析使用SuperChic Generator来计算软间隙存活因子，并将获得的结果与使用的结果进行比较。结果表明，单个解离机制的间隙存活因子与A（mini）射流的发射有关，具体取决于贡献的类型。该值与不变质量之间的依赖性以及瘦小对的横向动量及其速度。
We discuss the mechanisms of photon-photon fusion triggering the dilepton production in proton-proton collisions with rapidity gap in the main detector and one forward proton in the forward proton detectors. This correspond to the LHC measurements made by ATLAS+AFP and CMS+PPS. Transverse momenta of the intermediate photons and photon fluxes expressed by the form factors and structure functions are included. Moreover the influence of proton measurement and cuts on the $ξ_{1/2}$, $M_{ll}$, $Y_{ll}$, $p_{t,ll}$ distributions, cross section and gap survival factor are considered for both double-elastic and single-dissociative processes. The analyzes used the SuperChic generator to calculate the soft gap survival factor and to compare the results obtained with its use to the results obtained on the owned codes available. It is shown that the gap survival factor for the single dissociative mechanism is related to the emission of a (mini)jet into the main detector depending on the type of contribution. The dependence between this value and the invariant mass as well as the transverse momentum of the leptons pair and its rapidity was also found.
