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Title: Mass dependence of Higgs production at large transverse momentum

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [1];  [2]
  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics
  2. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics; Chongqing Univ. of Science and Technology, Chongqing (China). Dept. of Physics

The transverse momentum distribution of the Higgs at large PT is complicated by its dependence on three important energy scales: PT, the top quark mass mt, and the Higgs mass mH. A strategy for simplifying the calculation of the cross section at large PT is to calculate only the leading terms in its expansion in m t 2 /P T 2 and/or m H 2 /P T 2 . The expansion of the cross section in inverse powers of PT is complicated by logarithms of PT and by mass singularities. In this paper, we consider the top-quark loop contribution to the subprocess qq¯¯ → H + g at leading order in αs. We show that the leading power of 1/P T 2 can be expressed in the form of a factorization formula that separates the large scale PT from the scale of the masses. All the dependence on mt and mH can be factorized into a distribution amplitude for tt¯ in the Higgs, a distribution amplitude for tt¯ in a real gluon, and an endpoint contribution. The factorization formula can be used to simplify calculations of the PT distribution at large PT to next-to-leading order in αs. Here, the results are readily applied to the qg process via a straightforward analytical continuation.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0011726
OSTI ID:
1499188
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 11; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Cited By (5)


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