Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries

Anselmino, M.; Boglione, M.; D’Alesio, U.; Murgia, F.; Prokudin, A.

doi:10.1103/PhysRevD.98.094023

Title: Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries

Abstract

Information on the Sivers distribution and the Collins fragmentation functions and their transverse momentum dependence is mainly based on fitting single-spin asymmetry data from semi-inclusive deep inelastic scattering (SIDIS). Independent information on the Sivers distribution and the Collins fragmentation can be obtained from the Drell-Yan and e⁺e^- annihilation processes, respectively. In the SIDIS case, the transverse momentum of the final observed hadron, which is the quantity measured, is generated both by the average transverse momentum in the distribution and by that in the fragmentation functions. As a consequence, these are strongly correlated, and a separate extraction is made difficult. In this paper we investigate, in a simple kinematical Gaussian configuration, this correlation, its role on the transverse single-spin asymmetries in SIDIS, and the consequences for predictions of the Sivers asymmetry in Drell-Yan processes and for the Collins asymmetry in e⁺e^- annihilation. Here, we find that, in some cases, these effects can be relevant and must be carefully taken into account.

Authors:: Anselmino, M.; Boglione, M.; D’Alesio, U.; Murgia, F.; Prokudin, A.

Publication Date:: 2018-11-27

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1483449

Alternate Identifier(s):: OSTI ID: 1484446

Report Number(s):: JLAB-THY-18-2880; DOE/OR/23177-4609; arXiv:1809.09500
Journal ID: ISSN 2470-0010; PRVDAQ; 094023

Grant/Contract Number:: AC05-06OR23177; PHY-1623454

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 9; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Anselmino, M., Boglione, M., D’Alesio, U., Murgia, F., and Prokudin, A. Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevD.98.094023.

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                    Anselmino, M., Boglione, M., D’Alesio, U., Murgia, F., & Prokudin, A. Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries.  United States.  https://doi.org/10.1103/PhysRevD.98.094023

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                    Anselmino, M., Boglione, M., D’Alesio, U., Murgia, F., and Prokudin, A. Tue .  
"Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries".  United States.  https://doi.org/10.1103/PhysRevD.98.094023.

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@article{osti_1483449,

  title        = {Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries},

  author       = {Anselmino, M. and Boglione, M. and D’Alesio, U. and Murgia, F. and Prokudin, A.},

  abstractNote = {Information on the Sivers distribution and the Collins fragmentation functions and their transverse momentum dependence is mainly based on fitting single-spin asymmetry data from semi-inclusive deep inelastic scattering (SIDIS). Independent information on the Sivers distribution and the Collins fragmentation can be obtained from the Drell-Yan and e+e- annihilation processes, respectively. In the SIDIS case, the transverse momentum of the final observed hadron, which is the quantity measured, is generated both by the average transverse momentum in the distribution and by that in the fragmentation functions. As a consequence, these are strongly correlated, and a separate extraction is made difficult. In this paper we investigate, in a simple kinematical Gaussian configuration, this correlation, its role on the transverse single-spin asymmetries in SIDIS, and the consequences for predictions of the Sivers asymmetry in Drell-Yan processes and for the Collins asymmetry in e+e- annihilation. Here, we find that, in some cases, these effects can be relevant and must be carefully taken into account.},

  doi          = {10.1103/PhysRevD.98.094023},

  journal      = {Physical Review D},

  number       = 9,

  volume       = 98,

  place        = {United States},

  year         = {2018},

  month        = {11}

}

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Works referencing / citing this record:

Transverse momentum dependent of charged pion, kaon, and proton/antiproton fragmentation functions from $e^{+} e^{-}$ annihilation process
journal, November 2019

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Physical Review D, Vol. 100, Issue 9
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Title: Role of transverse momentum dependence of unpolarized parton distribution and fragmentation functions in the analysis of azimuthal spin asymmetries

Abstract

Citation Formats

An overview of transverse-momentum-dependent factorization and evolution journal, June 2016

Fragmentation of transversely polarized quarks probed in transverse momentum distributions journal, May 1993

QCD evolution of the Sivers asymmetry journal, April 2014

Extraction of quark transversity distribution and Collins fragmentation functions with QCD evolution journal, January 2016

Assessing signals of TMD physics in SIDIS azimuthal asymmetries and in the extraction of the Sivers function journal, July 2018

Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e + e − annihilation at s = 10.58 GeV journal, August 2008

Role of Cahn and Sivers effects in deep inelastic scattering journal, April 2005

Observation of the Naive- T -Odd Sivers Effect in Deep-Inelastic Scattering journal, October 2009

Sivers effect in semiinclusive deeply inelastic scattering journal, January 2006

Unified treatment of the QCD evolution of all (un-)polarized transverse momentum dependent functions: Collins function as a study case journal, July 2014

Transverse parton momenta in single inclusive hadron production in e + e − annihilation processes journal, September 2017

Soft and collinear factorization and transverse momentum dependent parton distribution functions journal, November 2013

Analysis of vector boson production within TMD factorization journal, January 2018

Unpolarised transverse momentum dependent distribution and fragmentation functions from SIDIS multiplicities journal, April 2014

Collins asymmetries in inclusive charged K K and K π pairs produced in e + e − annihilation journal, December 2015

Simultaneous extraction of transversity and Collins functions from new semi-inclusive deep inelastic scattering and e + e − data journal, May 2013

Factorization theorem for Drell-Yan at low q T and transverse-momentum distributions on-the-light-cone journal, July 2012

Single spin asymmetries of inclusive hadrons produced in electron scattering from a transversely polarized 3 He target journal, April 2014

Measurement of Collins asymmetries in inclusive production of charged pion pairs in e + e − annihilation at BABAR journal, September 2014

Transversity and Collins functions from SIDIS and e + e − data journal, March 2007

Extracting the kaon Collins function from e + e − hadron pair production data journal, February 2016

QCD evolution of the Sivers function journal, February 2012

I – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Collins asymmetries journal, October 2012

Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in e + e − Annihilation at Belle journal, June 2006

II – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Sivers asymmetries journal, October 2012

Sivers effect in Drell-Yan processes journal, March 2009

Collins functions for pions from SIDIS and new e + e − data: A first glance at their transverse momentum dependence journal, December 2015

Sivers effect for pion and kaon production in semi-inclusive deep inelastic scattering journal, December 2008

Non-perturbative QCD effects in q T spectra of Drell-Yan and Z-boson production journal, November 2014

Update on transversity and Collins functions from SIDIS and data journal, June 2009

Effects of transversity in deep-inelastic scattering by polarized protons journal, September 2010

General helicity formalism for semi-inclusive deep inelastic scattering journal, June 2011

Single-transverse-spin asymmetries: From deep inelastic scattering to hadronic collisions journal, September 2005

Study of the sign change of the Sivers function from STAR collaboration W/Z production data journal, April 2017

Semi-inclusive deep inelastic scattering at small transverse momentum journal, February 2007

Measurement of Azimuthal Asymmetries in Inclusive Charged Dipion Production in e + e − Annihilations at s = 3.65 GeV journal, January 2016

Hard-scattering scaling laws for single-spin production asymmetries journal, January 1991

Evolution of the helicity and transversity. Transverse-momentum-dependent parton distributions journal, October 2013

Single-spin production asymmetries from the hard scattering of pointlike constituents journal, January 1990

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons journal, May 2015

Constraining Quark Angular Momentum through Semi-Inclusive Measurements journal, November 2011

Investigations into the flavor dependence of partonic transverse momentum journal, November 2013

Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production journal, June 2017

Transverse momentum dependent of charged pion, kaon, and proton/antiproton fragmentation functions from e + e − annihilation process journal, November 2019

An overview of transverse-momentum-dependent factorization and evolution
journal, June 2016

Fragmentation of transversely polarized quarks probed in transverse momentum distributions
journal, May 1993

QCD evolution of the Sivers asymmetry
journal, April 2014

Extraction of quark transversity distribution and Collins fragmentation functions with QCD evolution
journal, January 2016

Assessing signals of TMD physics in SIDIS azimuthal asymmetries and in the extraction of the Sivers function
journal, July 2018

Measurement of azimuthal asymmetries in inclusive production of hadron pairs in $e^{+} e^{-}$ annihilation at $\sqrt{s} = 10.58 GeV$
journal, August 2008

Role of Cahn and Sivers effects in deep inelastic scattering
journal, April 2005

Observation of the Naive- $T$ -Odd Sivers Effect in Deep-Inelastic Scattering
journal, October 2009

Sivers effect in semiinclusive deeply inelastic scattering
journal, January 2006

Unified treatment of the QCD evolution of all (un-)polarized transverse momentum dependent functions: Collins function as a study case
journal, July 2014

Transverse parton momenta in single inclusive hadron production in e + e − annihilation processes
journal, September 2017

Soft and collinear factorization and transverse momentum dependent parton distribution functions
journal, November 2013

Analysis of vector boson production within TMD factorization
journal, January 2018

Unpolarised transverse momentum dependent distribution and fragmentation functions from SIDIS multiplicities
journal, April 2014

Collins asymmetries in inclusive charged $K K$ and $K π$ pairs produced in $e^{+} e^{-}$ annihilation
journal, December 2015

Simultaneous extraction of transversity and Collins functions from new semi-inclusive deep inelastic scattering and $e^{+} e^{-}$ data
journal, May 2013

Factorization theorem for Drell-Yan at low q T and transverse-momentum distributions on-the-light-cone
journal, July 2012

Single spin asymmetries of inclusive hadrons produced in electron scattering from a transversely polarized $^{3}$ He target
journal, April 2014

Measurement of Collins asymmetries in inclusive production of charged pion pairs in $e^{+} e^{-}$ annihilation at BABAR
journal, September 2014

Transversity and Collins functions from SIDIS and $e^{+} e^{-}$ data
journal, March 2007

Extracting the kaon Collins function from $e^{+} e^{-}$ hadron pair production data
journal, February 2016

QCD evolution of the Sivers function
journal, February 2012

I – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Collins asymmetries
journal, October 2012

Measurement of Azimuthal Asymmetries in Inclusive Production of Hadron Pairs in $e^{+} e^{-}$ Annihilation at Belle
journal, June 2006

II – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Sivers asymmetries
journal, October 2012

Sivers effect in Drell-Yan processes
journal, March 2009

Collins functions for pions from SIDIS and new $e^{+} e^{-}$ data: A first glance at their transverse momentum dependence
journal, December 2015

Sivers effect for pion and kaon production in semi-inclusive deep inelastic scattering
journal, December 2008

Non-perturbative QCD effects in q T spectra of Drell-Yan and Z-boson production
journal, November 2014

Update on transversity and Collins functions from SIDIS and data
journal, June 2009

Effects of transversity in deep-inelastic scattering by polarized protons
journal, September 2010

General helicity formalism for semi-inclusive deep inelastic scattering
journal, June 2011

Single-transverse-spin asymmetries: From deep inelastic scattering to hadronic collisions
journal, September 2005

Study of the sign change of the Sivers function from STAR collaboration W/Z production data
journal, April 2017

Semi-inclusive deep inelastic scattering at small transverse momentum
journal, February 2007

Measurement of Azimuthal Asymmetries in Inclusive Charged Dipion Production in $e^{+} e^{-}$ Annihilations at $\sqrt{s} = 3.65 GeV$
journal, January 2016

Hard-scattering scaling laws for single-spin production asymmetries
journal, January 1991

Evolution of the helicity and transversity. Transverse-momentum-dependent parton distributions
journal, October 2013

Single-spin production asymmetries from the hard scattering of pointlike constituents
journal, January 1990

Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons
journal, May 2015

Constraining Quark Angular Momentum through Semi-Inclusive Measurements
journal, November 2011

Investigations into the flavor dependence of partonic transverse momentum
journal, November 2013

Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production
journal, June 2017

Transverse momentum dependent of charged pion, kaon, and proton/antiproton fragmentation functions from $e^{+} e^{-}$ annihilation process
journal, November 2019