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arXiv 0812.3220hep-ph
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高能强子碰撞中D和B介子的横动量谱

Transverse momentum spectra of D and B mesons in hadron collisions at high energies

G. I. Lykasov, Z. M. Karpova, M. N. Sergeenko, V. A. Bednyakov

摘要:

在考虑强子碰撞中夸克内部运动的修正夸克-胶子弦模型(QGSM)下,分析了高能质子-质子和质子-反质子碰撞中粲介子和美介子的横动量谱.结果表明,在横动量不太大的情况下,这种方法可以比较满意地描述非线性光学QCD计算中存在较大不确定性的实验数据。我们还表明,使用QGSM和非线性光学QCD可以描述这些数据在一个广泛的区域的横动量,并给出一些预测未来的LHC实验。

英文摘要:

Transverse momentum spectra of charmed and beauty mesons produced in proton-proton and proton-antiproton collisions at high energies are analyzed within the modified quark-gluon string model (QGSM) including the internal motion of quarks in colliding hadrons. It is shown that this approach can describe rather satisfactorily the experimental data at not large values of the transverse momentum where the NLO QCD calculation has a big uncertainty. We also show that using both the QGSM and the NLO QCD one can describe these data in a wide region of transverse momenta and give some predictions for the future LHC experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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