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Title: NLO Higgs+jet production at large transverse momenta including top quark mass effects

Abstract

Here, we present a next-to-leading order calculation of H+jet in gluon fusion including the effect of a finite top quark mass $$m_t$$ at large transverse momenta. Using the recently published two-loop amplitudes in the high energy expansion and our previous setup that includes finite $$m_t$$ effects in a low energy expansion, we are able to obtain $$m_t$$-finite results for transverse momenta below 225 GeV and above 500 GeV with negligible remaining top quark mass uncertainty. The only remaining region that has to rely on the common leading order rescaling approach is the threshold region $$\sqrt{\hat s}\simeq 2m_t$$. We demonstrate that this rescaling provides an excellent approximation in the high $$p_T$$ region. Our calculation settles the issue of top quark mass effects at large transverse momenta. It is implemented in the parton level Monte Carlo code MCFM and is publicly available immediately in version 8.2.

Authors:
ORCiD logo [1]
  1. Illinois Institute of Technology, Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1471432
Alternate Identifier(s):
OSTI ID: 1438544
Report Number(s):
arXiv:1802.02981; IIT-CAPP-18-01; FERMILAB-PUB-18-034-T
Journal ID: ISSN 2399-6528; 1653986; TRN: US1900450
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Published Article
Journal Name:
Journal of Physics Communications
Additional Journal Information:
Journal Volume: 2; Journal Issue: 9; Journal ID: ISSN 2399-6528
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD; Standard Model; Higgs+jet; top quark mass effect

Citation Formats

Neumann, Tobias. NLO Higgs+jet production at large transverse momenta including top quark mass effects. United States: N. p., 2018. Web. doi:10.1088/2399-6528/aadfbf.
Neumann, Tobias. NLO Higgs+jet production at large transverse momenta including top quark mass effects. United States. doi:10.1088/2399-6528/aadfbf.
Neumann, Tobias. Wed . "NLO Higgs+jet production at large transverse momenta including top quark mass effects". United States. doi:10.1088/2399-6528/aadfbf.
@article{osti_1471432,
title = {NLO Higgs+jet production at large transverse momenta including top quark mass effects},
author = {Neumann, Tobias},
abstractNote = {Here, we present a next-to-leading order calculation of H+jet in gluon fusion including the effect of a finite top quark mass $m_t$ at large transverse momenta. Using the recently published two-loop amplitudes in the high energy expansion and our previous setup that includes finite $m_t$ effects in a low energy expansion, we are able to obtain $m_t$-finite results for transverse momenta below 225 GeV and above 500 GeV with negligible remaining top quark mass uncertainty. The only remaining region that has to rely on the common leading order rescaling approach is the threshold region $\sqrt{\hat s}\simeq 2m_t$. We demonstrate that this rescaling provides an excellent approximation in the high $p_T$ region. Our calculation settles the issue of top quark mass effects at large transverse momenta. It is implemented in the parton level Monte Carlo code MCFM and is publicly available immediately in version 8.2.},
doi = {10.1088/2399-6528/aadfbf},
journal = {Journal of Physics Communications},
issn = {2399-6528},
number = 9,
volume = 2,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1088/2399-6528/aadfbf

Figures / Tables:

Figure 1 Figure 1: Normalized Higgs transverse momentum distribution at LO in the low energy 1/mt expansion for low pT, in the large energy expansion for large pT and with exact mt dependence as normalization. The first order of the large energy expansion deviates by more than 30% and is not shown.

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Figures / Tables found in this record:

    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.