Scalar-pseudoscalar pair production at the Large Hadron Collider at NLO+NLL accuracy in QCD
Scalar-pseudoscalar pair production at the Large Hadron Collider at NLO+NLL accuracy in QCD
复制标题
大型强子对撞机在 QCD 中 NLO NLL 精度下的标量-伪标量对产生
DOI:
10.1088/1674-1137/ac23d2
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发表时间:
2021-09
影响因子:
3.6
通讯作者:
Li Shu-Xiang
中科院分区:
文献类型:
--
作者:
Li He-Yi;Zhang Ren-You;Zhang Yu;Ma Wen-Gan;Long Ming-Ming;Li Shu-Xiang
We investigate in detail both transverse momentum and threshold resummation effects on the scalar-pseudoscalar pair production via quark-antiquark annihilation at the \begin{document}$ 13 \; \text{TeV}$\end{document} Large Hadron Collider at the QCD NLO+NLL accuracy. A factorization method is introduced to supplement properly the soft-gluon (threshold) resummation contribution from parton distribution functions to the resummed results obtained by the Collins-Soper-Sterman resummation approach. We find that the impact of the threshold-resummation improved PDFs is comparable to the resummation effect from the partonic matrix element and can even predominate in high invariant mass region. Moreover, the loop-induced gluon-gluon fusion channel in the type-I two-Higgs-doublet model is also taken into account in our calculation. Our numerical results show that the electroweak production via quark-antiquark annihilation dominates over the gluon-initiated QCD production by \begin{document}$ 1 \sim 2$\end{document} orders of magnitude.
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DOI:
10.1140/epjc/s10052-016-3892-4
发表时间:
2016
期刊:
The European physical journal. C, Particles and fields
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1016/0550-3213(72)90279-9
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1972-07
期刊:
Nuclear Physics
影响因子:
--
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通讯作者:
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DOI:
10.1016/0550-3213(87)90258-6
发表时间:
1987-01
期刊:
Nuclear Physics
影响因子:
--
作者:
G. Sterman
通讯作者:
G. Sterman
DOI:
10.1016/j.cpc.2009.02.017
发表时间:
2008-08
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
F. Mahmoudi
通讯作者:
F. Mahmoudi
影响因子:
4.4
作者:
Bechtle, Philip;Heinemeyer, Sven;Weiglein, Georg
通讯作者:
Weiglein, Georg