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Title: Precision direct photon spectra at high energy and comparison to the 8 TeV ATLAS data

Abstract

The direct photon spectrum is computed to the highest currently available precision and compared to ATLAS data from 8 TeV collisions at the LHC. The prediction includes threshold resummation at next-to-next-to-next-to-leading logarithmic order through the program PeTeR, matched to next-to-leading fixed order with fragmentation effects using JetPhox and includes the resummation of leading-logarithmic electroweak Sudakov effects. Remarkably, improved agreement with data can be seen when each component of the calculation is added successively. This comparison demonstrates the importance of both threshold logs and electroweak Sudakov effects. Numerical values for the predictions are included.

Authors:
 [1]
  1. Harvard Univ., Cambridge, MA (United States). Dept. of Physics
Publication Date:
Research Org.:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1364359
Grant/Contract Number:  
SC0013607
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Volume: 2016; Journal Issue: 9; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; effective field theories; perturbative QCD; renormalization group

Citation Formats

Schwartz, Matthew D. Precision direct photon spectra at high energy and comparison to the 8 TeV ATLAS data. United States: N. p., 2016. Web. doi:10.1007/JHEP09(2016)005.
Schwartz, Matthew D. Precision direct photon spectra at high energy and comparison to the 8 TeV ATLAS data. United States. https://doi.org/10.1007/JHEP09(2016)005
Schwartz, Matthew D. Thu . "Precision direct photon spectra at high energy and comparison to the 8 TeV ATLAS data". United States. https://doi.org/10.1007/JHEP09(2016)005. https://www.osti.gov/servlets/purl/1364359.
@article{osti_1364359,
title = {Precision direct photon spectra at high energy and comparison to the 8 TeV ATLAS data},
author = {Schwartz, Matthew D.},
abstractNote = {The direct photon spectrum is computed to the highest currently available precision and compared to ATLAS data from 8 TeV collisions at the LHC. The prediction includes threshold resummation at next-to-next-to-next-to-leading logarithmic order through the program PeTeR, matched to next-to-leading fixed order with fragmentation effects using JetPhox and includes the resummation of leading-logarithmic electroweak Sudakov effects. Remarkably, improved agreement with data can be seen when each component of the calculation is added successively. This comparison demonstrates the importance of both threshold logs and electroweak Sudakov effects. Numerical values for the predictions are included.},
doi = {10.1007/JHEP09(2016)005},
url = {https://www.osti.gov/biblio/1364359}, journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 9,
volume = 2016,
place = {United States},
year = {2016},
month = {9}
}

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Cited by: 3 works
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