论文标题
$ f_2（1270）$ tensor erson在LHC中通过$ k_t $ -FACTORIZIADY方法在LHC上的tensor媒介
Inclusive production of $f_2(1270)$ tensor mesons at the LHC via gluon-gluon fusion in the $k_t$-factorization approach
论文作者
论文摘要
计算了$ F_2（1270）$ MESON的横截面。我们既包括Gluon-Gluon融合的机制，也包括$ππ$最终撤离。 Gluon-Gluon融合的贡献是在现代未集成的Gluon分布功能（UGDFS）的$ k_t $ factorization方法中计算的。 $ g^* g^* \至f_2 $顶点的某些参数是从$γγ\到f_2（1270）\至ππ$反应中提取的。结果在很大程度上取决于$ g^* g^* \的参数化到f_2（1270）$ form react。将我们的模型的结果与爱丽丝的初步数据进行了比较。 Gluon-Gluon融合并不能解释低$ P_T $数据，但可能是更大的中膜横向动量的主要机制。通过调整一些参数，锥形拆卸可以解释低$ P_T $区域。
The cross section for inclusive production of $f_2(1270)$ meson is calculated. We include both the mechanism of gluon-gluon fusion as well as the $ππ$ final-state rescattering. The contribution of the gluon-gluon fusion is calculated within the $k_t$-factorization approach with modern unintegrated gluon distribution functions (UGDFs). Some parameters for the $g^* g^* \to f_2$ vertex are extracted from the $γγ\to f_2(1270) \to ππ$ reactions. The results strongly depend on the parametrization of the $g^* g^* \to f_2(1270)$ form factor. Results of our model are compared to the ALICE preliminary data. The gluon-gluon fusion does not explain low-$p_t$ data but could be the dominant mechanism at somewhat larger meson transverse momenta. By adjusting some parameters the pion-pion rescattering can explain the low-$p_t$ region.
