Open charm hadroproduction and the intrinsic charm content of the proton
Open charm hadroproduction and the intrinsic charm content of the proton
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DOI：
10.3360/dis.2009.126
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发表时间：
2009-07
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通讯作者：
B. Kniehl
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作者：
B. Kniehl
我们提倡用粲强子包容产子作为实验室来探索碰撞强子内部的内在粲子（IC）。在最近从KEKB、CESR和LEP1的e^+e^-湮灭数据的全局拟合中提取的具有非微扰碎片函数的一般质量变味数方案中，我们首先评估了D^0、D^+和D^{*+}包含生产的Tevatron数据对Pumplin等人提供的IC参数化的敏感性。然后，我们认为，在RHIC上从pp碰撞中获得的类似数据将有可能区分不同的IC模型，只要它们达到足够大的横向动量值。
We advocate charmed-hadron inclusive hadroproduction as a laboratory to probe intrinsic charm (IC) inside the colliding hadrons. Working at next-to-leading order in the general-mass variable-flavor-number scheme endowed with non-perturbative fragmentation functions recently extracted from a global fit to e^+e^- annihilation data from KEKB, CESR, and LEP1, we first assess the sensitivity of Tevatron data of D^0, D^+, and D^{*+} inclusive production to the IC parameterizations provided by Pumplin et al. We then argue that similar data from pp collisions at RHIC would have the potential to discriminate between different IC models provided they reach out to sufficiently large values of transverse momentum.