Toward a NNLO calculation of the antiB > X(s) gamma decay rate with a cut on photon energy. II. Twoloop result for the jet function
Abstract
The complete twoloop expression for the jet function J(p{sup 2},{mu}) of softcollinear effective theory is presented, including nonlogarithmic terms. Combined with our previous calculation of the soft function S({omega},{mu}), this result provides the basis for a calculation of the effect of a photonenergy cut in the measurement of the {bar B} {yields} X{sub s}{gamma} decay rate at nexttonexttoleading order in renormalizationgroup improved perturbation theory. The jet function is also relevant to the resummation of Sudakov logarithms in other hard QCD processes.
 Authors:
 Publication Date:
 Research Org.:
 Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 892345
 Report Number(s):
 FERMILABPUB06057T
Journal ID: ISSN 03702693; PYLBAJ; arXiv eprint number hepph/0603140; TRN: US0701276
 DOE Contract Number:
 AC0276CH03000
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Phys.Lett.B637:251259,2006; Journal Volume: 637
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DECAY; GAMMA DECAY; PERTURBATION THEORY; PHOTONS; QUANTUM CHROMODYNAMICS; PhenomenologyHEP
Citation Formats
Becher, Thomas, /Fermilab, Neubert, Matthias, and /Cornell U., CIHEP. Toward a NNLO calculation of the antiB > X(s) gamma decay rate with a cut on photon energy. II. Twoloop result for the jet function. United States: N. p., 2006.
Web. doi:10.1016/j.physletb.2006.04.046.
Becher, Thomas, /Fermilab, Neubert, Matthias, & /Cornell U., CIHEP. Toward a NNLO calculation of the antiB > X(s) gamma decay rate with a cut on photon energy. II. Twoloop result for the jet function. United States. doi:10.1016/j.physletb.2006.04.046.
Becher, Thomas, /Fermilab, Neubert, Matthias, and /Cornell U., CIHEP. Wed .
"Toward a NNLO calculation of the antiB > X(s) gamma decay rate with a cut on photon energy. II. Twoloop result for the jet function". United States.
doi:10.1016/j.physletb.2006.04.046. https://www.osti.gov/servlets/purl/892345.
@article{osti_892345,
title = {Toward a NNLO calculation of the antiB > X(s) gamma decay rate with a cut on photon energy. II. Twoloop result for the jet function},
author = {Becher, Thomas and /Fermilab and Neubert, Matthias and /Cornell U., CIHEP},
abstractNote = {The complete twoloop expression for the jet function J(p{sup 2},{mu}) of softcollinear effective theory is presented, including nonlogarithmic terms. Combined with our previous calculation of the soft function S({omega},{mu}), this result provides the basis for a calculation of the effect of a photonenergy cut in the measurement of the {bar B} {yields} X{sub s}{gamma} decay rate at nexttonexttoleading order in renormalizationgroup improved perturbation theory. The jet function is also relevant to the resummation of Sudakov logarithms in other hard QCD processes.},
doi = {10.1016/j.physletb.2006.04.046},
journal = {Phys.Lett.B637:251259,2006},
number = ,
volume = 637,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}
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