Transverse-momentum resummation for the signal- background interference in the H → γγ channel at the LHC

被引:8
|
作者
Cieri, L. [1 ]
Coradeschi, F. [2 ]
de Florian, D. [3 ]
Fidanza, N. [3 ]
机构
[1] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland
[2] Univ Cambridge, Ctr Math Sci, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England
[3] ECyT UNSAM, ICAS, Campus Miguelete,25 Mayo & Francia, RA-1650 Buenos Aires, DF, Argentina
关键词
HIGGS-BOSON PRODUCTION; ONE-LOOP CORRECTIONS;
D O I
10.1103/PhysRevD.96.054003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present an upgraded calculation of the effects of resonance-continuum interference for the Higgs boson decaying to two photons at the Large Hadron Collider, at next-to-leading order in the strong coupling alpha(S), O(alpha(3)(S)), and including transverse-momentum (q(T)) resummation at next-to-leading logarithmic accuracy. We study the importance of the interference contribution in different transverse-momentum regions, with a particular focus on the low-q(T) region q(T)(2) << Q(2) (with Q(2) being the invariant diphoton mass) where resummation becomes essential for a reliable calculation.
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收藏
页数:9
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