Based on the data collected with the H1 and ZEUS detectors at HERA, recent results on strangeness, charm and beauty production in ep collision are presented.
We calculate the next-to-leading-order cross section for the inclusive production ofΛ（b ）baryons in pp collisions in the general-mass variable-flavor-number scheme.We use realistic evolved non-perturbative fragment...We calculate the next-to-leading-order cross section for the inclusive production ofΛ（b ）baryons in pp collisions in the general-mass variable-flavor-number scheme.We use realistic evolved non-perturbative fragmentation functions obtained from fits to B-meson production in e^＋e^-annihilation and compare our results for transversemomentum and rapidity distributions with recent experimental data from the CMS and the LHCb collaborations at the CERN LHC.We find satisfactory agreement in general,with some indication for the need to modify the available fragmentation functions at larger values of the scale variable.展开更多
文摘Based on the data collected with the H1 and ZEUS detectors at HERA, recent results on strangeness, charm and beauty production in ep collision are presented.
文摘We calculate the next-to-leading-order cross section for the inclusive production ofΛ（b ）baryons in pp collisions in the general-mass variable-flavor-number scheme.We use realistic evolved non-perturbative fragmentation functions obtained from fits to B-meson production in e^＋e^-annihilation and compare our results for transversemomentum and rapidity distributions with recent experimental data from the CMS and the LHCb collaborations at the CERN LHC.We find satisfactory agreement in general,with some indication for the need to modify the available fragmentation functions at larger values of the scale variable.
