论文标题
提示质子碰撞中的光子产生，作为在高能量极限中散射的探针
Prompt photon production in proton collisions as a probe of parton scattering in high energy limit
论文作者
论文摘要
我们使用$ k_t $ -FACTORIZARIZIAD方法和$ qg^* \ toqγ$和$ g^* g^* \ to q \ barqγ$ partsonic频道，使用$ k_t $ factorization方法在LHC上研究迅速的光子载体生殖。它们代表了三种不同的理论方案，这些方案通常在$ k_t $ -Factorization方法中考虑，在缩写词中已知：KMR，CCFM和GBW GLUON分布。我们发现计算出的迅速光子横向动量分布对Gluon横向动量分布的灵敏度。将三种方法获得的预测与数据进行了比较，从而可以区分它们。我们还讨论了两个党派渠道的重要性，并面对基于高能近似中$ k_t $ factorization方案的适用性的期望。
We study the prompt photon hadroproduction at the LHC with the $k_T$-factorization approach and the $qg^* \to qγ$ and $g^*g^* \to q\bar qγ$ partonic channels, using three unintegrated gluon distributions which depend on gluon transverse momentum. They represent three different theoretical schemes which are usually considered in the $k_T$-factorization approach, known under the acronyms: KMR, CCFM and GBW gluon distributions. We find sensitivity of the calculated prompt photon transverse momentum distribution to the gluon transverse momentum distribution. The predictions obtained with the three approaches are compared to data, that allows to differentiate between them. We also discuss the significance of the two partonic channels, confronted with the expectations which are based on the applicability of the $k_T$-factorization scheme in the high energy approximation.
