DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Open charm production in double parton scattering processes in the forward kinematics

Abstract

We calculate the rate of double open charm production in the forward kinematics studied recently in the LHCb experiment.We find that the mean field approximation for the double partonGPD (generalized parton distributions), which neglects parton–parton correlations, underestimates the rate by a factor of 2. The enhancement due to the perturbative QCD correlation 1Ⓧ2 mechanism which explains the rate of double parton interactions at the central rapidities is found to explain 60 ÷ 80% of the discrepancy. We argue that the nonperturbative fluctuations leading to nonfactorized (correlated) contributions to the initial conditions for the DGLAP collinear evolution of the double parton GPD play an important role in this kinematics. Combined, the two correlation mechanisms provide a good description of the rate of double charm production reported by the LHCb. We also give predictions for the variation of the σeff (i.e. the ratio of double and square of single inclusive rates) in the discussed kinematics as a function of pt . The account for two correlation mechanisms strongly reduces the sensitivity of the results to the starting point of the QCD evolution.

Authors:
 [1];  [2]
  1. Technion-Israel Inst. of Tech., Haifa (Israel)
  2. Pennsylvania State Univ., University Park, PA (United States)
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1423994
Grant/Contract Number:  
FG02-93ER40771
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 76; Journal Issue: 12; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Blok, B., and Strikman, M. Open charm production in double parton scattering processes in the forward kinematics. United States: N. p., 2016. Web. doi:10.1140/epjc/s10052-016-4551-5.
Blok, B., & Strikman, M. Open charm production in double parton scattering processes in the forward kinematics. United States. https://doi.org/10.1140/epjc/s10052-016-4551-5
Blok, B., and Strikman, M. Sun . "Open charm production in double parton scattering processes in the forward kinematics". United States. https://doi.org/10.1140/epjc/s10052-016-4551-5. https://www.osti.gov/servlets/purl/1423994.
@article{osti_1423994,
title = {Open charm production in double parton scattering processes in the forward kinematics},
author = {Blok, B. and Strikman, M.},
abstractNote = {We calculate the rate of double open charm production in the forward kinematics studied recently in the LHCb experiment.We find that the mean field approximation for the double partonGPD (generalized parton distributions), which neglects parton–parton correlations, underestimates the rate by a factor of 2. The enhancement due to the perturbative QCD correlation 1Ⓧ2 mechanism which explains the rate of double parton interactions at the central rapidities is found to explain 60 ÷ 80% of the discrepancy. We argue that the nonperturbative fluctuations leading to nonfactorized (correlated) contributions to the initial conditions for the DGLAP collinear evolution of the double parton GPD play an important role in this kinematics. Combined, the two correlation mechanisms provide a good description of the rate of double charm production reported by the LHCb. We also give predictions for the variation of the σeff (i.e. the ratio of double and square of single inclusive rates) in the discussed kinematics as a function of pt . The account for two correlation mechanisms strongly reduces the sensitivity of the results to the starting point of the QCD evolution.},
doi = {10.1140/epjc/s10052-016-4551-5},
journal = {European Physical Journal. C, Particles and Fields},
number = 12,
volume = 76,
place = {United States},
year = {Sun Dec 18 00:00:00 EST 2016},
month = {Sun Dec 18 00:00:00 EST 2016}
}

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

Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

pQCD physics of multiparton interactions
journal, April 2012


Diffraction dissociation in photoproduction at HERA
journal, April 1997

  • Adloff et al., C.
  • Zeitschrift f�r Physik C Particles and Fields, Vol. 74, Issue 2
  • DOI: 10.1007/s002880050385

Double parton scattering: Impact of nonperturbative parton correlations
journal, February 2016


Dijet production as a centrality trigger for pp collisions at CERN LHC
journal, June 2004


Cancellation of Glauber gluon exchange in the double Drell-Yan process
journal, January 2016

  • Diehl, Markus; Gaunt, Jonathan R.; Ostermeier, Daniel
  • Journal of High Energy Physics, Vol. 2016, Issue 1
  • DOI: 10.1007/JHEP01(2016)076

Electroweak boson production in double parton scattering
journal, November 2014


Simultaneous production of charmonium and bottomonium mesons at the LHC
journal, June 2015


Double parton scattering singularity in one-loop integrals
journal, June 2011

  • Gaunt, Jonathan R.; Stirling, W. James
  • Journal of High Energy Physics, Vol. 2011, Issue 6
  • DOI: 10.1007/JHEP06(2011)048

Double parton interactions in γ + 3 jet events in p p ¯ collisions at s = 1.96 TeV
journal, March 2010


Dynamical parton distributions revisited
journal, September 1998

  • Glück, M.; Reya, E.; Vogt, A.
  • The European Physical Journal C, Vol. 5, Issue 3
  • DOI: 10.1007/s100529800978

Hard processes in quantum chromodynamics
journal, February 1980


Multiparton processes: An application to the double Drell-Yan mechanism
journal, November 1985


Double parton distributions incorporating perturbative QCD evolution and momentum and quark number sum rules
journal, March 2010

  • Gaunt, Jonathan R.; James Stirling, W.
  • Journal of High Energy Physics, Vol. 2010, Issue 3
  • DOI: 10.1007/JHEP03(2010)005

Total cross sections
journal, December 1992


Diffractive production mechanisms
journal, February 1979


Four-jet production at LHC and Tevatron in QCD
journal, April 2011


Transverse nucleon structure and diagnostics of hard parton-parton processes at LHC
journal, March 2011


Measurement of J / ψ and ψ ( 2 S ) Prompt Double-Differential Cross Sections in p p Collisions at s = 7 TeV
journal, May 2015


Double parton scattering in p ¯ p collisions at s = 1.8 TeV
journal, October 1997


Single-parton scattering versus double-parton scattering in the production of two c c ¯ pairs and charmed meson correlations at the LHC
journal, May 2014


Observation and studies of double J / ψ production at the Tevatron
journal, December 2014


Conventional versus single-ladder-splitting contributions to double parton scattering production of two quarkonia, two Higgs bosons, and c c ¯ c c ¯
journal, September 2014


Two-gluon form factor of the nucleon and J / ψ photoproduction
journal, August 2002


Same-sign W pair production as a probe of double-parton scattering at the LHC
journal, June 2010


Prompt charm production in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math>
journal, June 2013


Production of two charm quark–antiquark pairs in single-parton scattering within the k t -factorization approach
journal, September 2015


Elements of a theory for multiparton interactions in QCD
journal, March 2012

  • Diehl, Markus; Ostermeier, Daniel; Schäfer, Andreas
  • Journal of High Energy Physics, Vol. 2012, Issue 3
  • DOI: 10.1007/JHEP03(2012)089

Multiquark scattering and large-p T jet production in hadronic collisions
journal, August 1982


Diffraction of subnuclear waves
journal, August 1981


On relevance of triple-gluon fusion in $$J/\psi $$ J / ψ hadroproduction
journal, May 2015


Dynamical approach to MPI four-jet production in Pythia
journal, June 2015


Dynamical parton distributions revisited
journal, January 1998

  • Glück, M.; Reya, E.; Vogt, A.
  • The European Physical Journal C, Vol. 5, Issue 3
  • DOI: 10.1007/s100520050289

Cancellation of Glauber gluon exchange in the double Drell-Yan process
text, January 2016

  • Diehl, Markus; Gaunt, Jonathan R.; Ostermeier, Daniel
  • Universität Regensburg
  • DOI: 10.5283/epub.37209

Same-sign W pair production as a probe of double parton scattering at the LHC
text, January 2010


Transverse nucleon structure and diagnostics of hard parton-parton processes at LHC
text, January 2010


The four jet production at LHC and Tevatron in QCD
text, January 2010


Double Parton Scattering Singularity in One-Loop Integrals
text, January 2011


Elements of a theory for multiparton interactions in QCD
text, January 2011


Prompt charm production in pp collisions at sqrt(s)=7 TeV
text, January 2013


Cancellation of Glauber gluon exchange in the double Drell-Yan process
text, January 2015


Double parton scattering: Impact of nonperturbative parton correlations
text, January 2015


Total cross sections
text, January 1992


Dynamical Parton Distributions Revisited
text, January 1998


Works referencing / citing this record:

Revealing minijet dynamics via centrality dependence of double parton interactions in proton–nucleus collisions
journal, June 2019


Indication for double parton scatterings in W+ prompt J/ψ production at the LHC
journal, June 2018


Study of double parton scattering processes with heavy quarks
preprint, January 2017


Multiparton interactions, small-x processes and diffraction
preprint, January 2017