skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A subleading power operator basis for the scalar quark current

Abstract

Factorization theorems play a crucial role in our understanding of the strong interaction. For collider processes they are typically formulated at leading power and much less is known about power corrections in the λ << 1 expansion. Here we present a complete basis of power suppressed operators for a scalar quark current at O(λ 2) in the amplitude level power expansion in the Soft Collinear Effective Theory, demonstrating that helicity selection rules significantly simplify the construction. This basis applies for the production of any color singlet scalar in qq¯¯ annihilation (such as bb¯¯→H ). We also classify all operators which contribute to the cross section at O(λ 2) and perform matching calculations to determine their tree level Wilson coefficients. Furthermore, these results can be exploited to study power corrections in both resummed and fixed order perturbation theory, and for analyzing the factorization properties of gauge theory amplitudes and cross sections at subleading power.

Authors:
 [1];  [1]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology, Cambridge, MA (United States). Center for Theoretical Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1501476
Grant/Contract Number:  
SC0011090
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 4; 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

Citation Formats

Chang, Cyuan -Han, Stewart, Iain W., and Vita, Gherardo. A subleading power operator basis for the scalar quark current. United States: N. p., 2018. Web. doi:10.1007/jhep04(2018)041.
Chang, Cyuan -Han, Stewart, Iain W., & Vita, Gherardo. A subleading power operator basis for the scalar quark current. United States. doi:10.1007/jhep04(2018)041.
Chang, Cyuan -Han, Stewart, Iain W., and Vita, Gherardo. Mon . "A subleading power operator basis for the scalar quark current". United States. doi:10.1007/jhep04(2018)041. https://www.osti.gov/servlets/purl/1501476.
@article{osti_1501476,
title = {A subleading power operator basis for the scalar quark current},
author = {Chang, Cyuan -Han and Stewart, Iain W. and Vita, Gherardo},
abstractNote = {Factorization theorems play a crucial role in our understanding of the strong interaction. For collider processes they are typically formulated at leading power and much less is known about power corrections in the λ << 1 expansion. Here we present a complete basis of power suppressed operators for a scalar quark current at O(λ2) in the amplitude level power expansion in the Soft Collinear Effective Theory, demonstrating that helicity selection rules significantly simplify the construction. This basis applies for the production of any color singlet scalar in qq¯¯ annihilation (such as bb¯¯→H ). We also classify all operators which contribute to the cross section at O(λ2) and perform matching calculations to determine their tree level Wilson coefficients. Furthermore, these results can be exploited to study power corrections in both resummed and fixed order perturbation theory, and for analyzing the factorization properties of gauge theory amplitudes and cross sections at subleading power.},
doi = {10.1007/jhep04(2018)041},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2018,
place = {United States},
year = {2018},
month = {4}
}

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

Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

ZZ production at hadron colliders in NNLO QCD
journal, July 2014


Direct Photon Production at Next-to–Next-to-Leading Order
journal, May 2017


Higgs boson production in association with a jet using jettiness subtraction
journal, September 2015


W -Boson Production in Association with a Jet at Next-to-Next-to-Leading Order in Perturbative QCD
journal, August 2015


Evanescent operators, scheme dependences and double insertions
journal, November 1995


Associated ZH production at hadron colliders: The fully differential NNLO QCD calculation
journal, January 2015


W -boson plus jet differential distributions at NNLO in QCD
journal, December 2016


Zγ production at hadron colliders in NNLO QCD
journal, April 2014


Multipole-expanded soft-collinear effective theory with non-Abelian gauge symmetry
journal, February 2003


On the vanishing of evanescent operators
journal, March 1991


An effective field theory for collinear and soft gluons: Heavy to light decays
journal, May 2001


Loop corrections to subleading heavy quark currents in SCET
journal, August 2004


Path integral approach to eikonal and next-to-eikonal exponentiation
journal, March 2009


Subleading jet functions in inclusive B decays
journal, June 2009


Drell-Yan process with jet vetoes: breaking of generalized factorization
journal, October 2015


Resummation of large endpoint corrections to color-octet J / ψ photoproduction
journal, December 2006


Glauber gluons and multiple parton interactions
journal, July 2014


Constraint equations for heavy-to-light currents in soft-collinear effective theory
journal, December 2005


QCD nonleading corrections to weak decays in dimensional regularization and 't Hooft-Veltman schemes
journal, March 1990


Extension of the Low Soft-Photon Theorem
journal, January 1968


On next-to-eikonal corrections to threshold resummation for the Drell–Yan and DIS cross sections
journal, November 2008


A factorization approach to next-to-leading-power threshold logarithms
journal, June 2015

  • Bonocore, D.; Laenen, E.; Magnea, L.
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)008

Employing helicity amplitudes for resummation
journal, May 2016


N Jettiness: An Inclusive Event Shape to Veto Jets
journal, August 2010


An effective field theory for forward scattering and factorization violation
journal, August 2016

  • Rothstein, Ira Z.; Stewart, Iain W.
  • Journal of High Energy Physics, Vol. 2016, Issue 8
  • DOI: 10.1007/JHEP08(2016)025

Soft Wilson lines in the soft-collinear effective theory
journal, March 2005


W + W Production at Hadron Colliders in Next to Next to Leading Order QCD
journal, November 2014


Reparametrization invariant collinear operators
journal, March 2009


Vector Boson Production at Hadron Colliders: A Fully Exclusive QCD Calculation at Next-to-Next-to-Leading Order
journal, August 2009


Invariant operators in collinear effective theory
journal, September 2001


Factorization at the LHC: From parton distribution functions to initial state jets
journal, May 2010


Summing Sudakov logarithms in B X s γ in effective field theory
journal, December 2000


Reparameterization invariance for collinear operators
journal, July 2002


Phenomenology of the Z boson plus jet process at NNLO
journal, October 2016


A subleading operator basis and matching for gg → H
journal, July 2017

  • Moult, Ian; Stewart, Iain W.; Vita, Gherardo
  • Journal of High Energy Physics, Vol. 2017, Issue 7
  • DOI: 10.1007/JHEP07(2017)067

Associated Higgs- W -Boson Production at Hadron Colliders: A Fully Exclusive QCD Calculation at NNLO
journal, October 2011


A complete basis of helicity operators for subleading factorization
journal, November 2017

  • Feige, Ilya; Kolodrubetz, Daniel W.; Moult, Ian
  • Journal of High Energy Physics, Vol. 2017, Issue 11
  • DOI: 10.1007/JHEP11(2017)142

Power suppressed operators and gauge invariance in soft-collinear effective theory
journal, August 2003


Soft-collinear effective theory and heavy-to-light currents beyond leading power
journal, November 2002


Hard scattering factorization from effective field theory
journal, July 2002


Predictions for diphoton production at the LHC through NNLO in QCD
journal, July 2016

  • Campbell, John M.; Ellis, R. Keith; Li, Ye
  • Journal of High Energy Physics, Vol. 2016, Issue 7
  • DOI: 10.1007/JHEP07(2016)148

ZZ production at the LHC: Fiducial cross sections and distributions in NNLO QCD
journal, November 2015


Diphoton Production at Hadron Colliders: A Fully Differential QCD Calculation at Next-to-Next-to-Leading Order
journal, February 2012


Subleading power corrections for N -jettiness subtractions
journal, April 2017


Factorization for power corrections to and
journal, August 2005


Collinear effective theory at subleading order and its application to heavy-light currents
journal, June 2002


Color-singlet production at NNLO in MCFM
journal, December 2016


N-jettiness subtractions for NNLO QCD calculations
journal, September 2015

  • Gaunt, Jonathan R.; Stahlhofen, Maximilian; Tackmann, Frank J.
  • Journal of High Energy Physics, Vol. 2015, Issue 9
  • DOI: 10.1007/JHEP09(2015)058

Building blocks for subleading helicity operators
journal, May 2016

  • Kolodrubetz, Daniel W.; Moult, Ian; Stewart, Iain W.
  • Journal of High Energy Physics, Vol. 2016, Issue 5
  • DOI: 10.1007/JHEP05(2016)139

N -jettiness subtractions for g g H at subleading power
journal, January 2018


Soft theorems from effective field theory
journal, June 2015

  • Larkoski, Andrew J.; Neill, Duff; Stewart, Iain W.
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)077

Power corrections in the N -jettiness subtraction scheme
journal, March 2017

  • Boughezal, Radja; Liu, Xiaohui; Petriello, Frank
  • Journal of High Energy Physics, Vol. 2017, Issue 3
  • DOI: 10.1007/JHEP03(2017)160

Factorization and end point singularities in heavy-to-light decays
journal, April 2003


Bremsstrahlung of Very Low-Energy Quanta in Elementary Particle Collisions
journal, May 1958


Renormalization of subleading dijet operators in soft-collinear effective theory
journal, December 2014


Complete basis for power suppressed collinear-ultrasoft operators
journal, May 2003


Soft-collinear factorization in effective field theory
journal, February 2002


Sudakov Resummation for Subleading SCET Currents and Heavy-to-Light Form Factors
journal, July 2004


Subleading Shape Functions in Inclusive B Decays
journal, November 2004


    Works referencing / citing this record:

    Power corrections for N-jettiness subtractions at O α s $$ \mathcal{O}\left({\alpha}_s\right) $$
    journal, December 2018

    • Ebert, Markus A.; Moult, Ian; Stewart, Iain W.
    • Journal of High Energy Physics, Vol. 2018, Issue 12
    • DOI: 10.1007/jhep12(2018)084