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Title: NNLO QCD corrections to t -channel single top quark production and decay

Abstract

We present a fully differential next-to-next-to-leading-order calculation of t -channel single top quark production and decay at the LHC under a narrow-width approximation and neglecting cross talk between incoming protons. We investigate the fiducial cross sections at 13 TeV, finding that the next-to-next-toleading- order QCD corrections can reach the level of -6%. The scale variations are reduced to the level of a percent. Our results can be utilized to improve experimental acceptance estimates and the measurements of the single top quark production cross section and the top quark electroweak couplings.

Authors:
 [1];  [2];  [3];  [4]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of California, Santa Barbara, CA (United States)
  3. Michigan State Univ., East Lansing, MI (United States)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1505717
Alternate Identifier(s):
OSTI ID: 1328583
Grant/Contract Number:  
[SC0011090; AC02-06CH11357]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
[ Journal Volume: 94; Journal Issue: 7]; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Berger, Edmond L., Gao, Jun, Yuan, C. -P., and Zhu, Hua Xing. NNLO QCD corrections to t -channel single top quark production and decay. United States: N. p., 2016. Web. doi:10.1103/physrevd.94.071501.
Berger, Edmond L., Gao, Jun, Yuan, C. -P., & Zhu, Hua Xing. NNLO QCD corrections to t -channel single top quark production and decay. United States. doi:10.1103/physrevd.94.071501.
Berger, Edmond L., Gao, Jun, Yuan, C. -P., and Zhu, Hua Xing. Tue . "NNLO QCD corrections to t -channel single top quark production and decay". United States. doi:10.1103/physrevd.94.071501. https://www.osti.gov/servlets/purl/1505717.
@article{osti_1505717,
title = {NNLO QCD corrections to t -channel single top quark production and decay},
author = {Berger, Edmond L. and Gao, Jun and Yuan, C. -P. and Zhu, Hua Xing},
abstractNote = {We present a fully differential next-to-next-to-leading-order calculation of t-channel single top quark production and decay at the LHC under a narrow-width approximation and neglecting cross talk between incoming protons. We investigate the fiducial cross sections at 13 TeV, finding that the next-to-next-toleading- order QCD corrections can reach the level of -6%. The scale variations are reduced to the level of a percent. Our results can be utilized to improve experimental acceptance estimates and the measurements of the single top quark production cross section and the top quark electroweak couplings.},
doi = {10.1103/physrevd.94.071501},
journal = {Physical Review D},
number = [7],
volume = [94],
place = {United States},
year = {2016},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: Sketch of t-channel single top quark production and decay; ubdt with te+$v$eb. Vl represents QCD corrections to the light-quark line, which could include interference of the tree diagram and the two-loop diagram, square of the one-loop diagram (double-virtual), interference of the one-loop diagram withmore » one additional gluon and the tree-level diagram with one additional gluon (real-virtual), and the square of tree-level diagram with a pair of additional partons (double-real). Vh and Vd represent the same type of corrections to the heavy-quark line and the decay part, respectively. There is no cross talk between the light-quark line, heavy-quark line, and the decay part in our calculation.« less

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