NLO-QCD corrections to Higgs pair production in the MSSM

被引：16
|
作者：
Agostini, A. [1 ,2 ]
Degrassi, G. [1 ,2 ]
Grober, R. [2 ]
Slavich, P. [3 ,4 ]
机构：
[1] Univ Rome Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma Tre, Via Vasca Navale 84, I-00146 Rome, Italy
[3] Univ Paris 06, Sorbonne Univ, LP THE, 4 Pl Jussieu, F-75252 Paris, France
[4] CNRS, LP THE, 4 Pl Jussieu, F-75252 Paris, France
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 04期
基金：
欧洲研究理事会;
关键词：
NLO Computations; Supersymmetry Phenomenology; HADRON COLLIDERS; MASSES; LHC; DECAYS; SUPERSYMMETRY; BOSONS;
D O I：
10.1007/JHEP04(2016)106
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We take a step towards a complete NLO-QCD determination of the production of a pair of Higgs scalars in the MSSM. Exploiting a low-energy theorem that connects the Higgs-gluon interactions to the derivatives of the gluon self-energy, we obtain analytic results for the one- and two-loop squark contributions to Higgs pair production in the limit of vanishing external momenta. We find that the two-loop squark contributions can have non-negligible effects in MSSM scenarios with stop masses below the TeV scale. We also show how our results can be adapted to the case of Higgs pair production in the NMSSM.
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页数：29
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