Implications of CMS analysis of photon-photon interactions for photon PDFs

Obul, Pazilet; Ababekri, Mamut; Dulat, Sayipjamal; Isaacson, Joshua; Schmidt, Carl; Yuan, C. -P.

doi:10.1088/1674-1137/42/11/113101

Title: Implications of CMS analysis of photon-photon interactions for photon PDFs

Abstract

As part of a recent analysis of exclusive two-photon production of W⁺ W ^– pairs at the LHC, the CMS experiment used di-lepton data to obtain an “effective” photon-photon luminosity. We show how the CMS analysis on their 8 TeV data, along with some assumptions about the likelihood for events in which the proton breaks up to pass the selection criteria, can be used to significantly constrain the photon parton distribution functions, such as those from the CTEQ, MRST, and NNPDF collaborations. We compare the data with predictions using these photon distributions, as well as the new LUXqed photon distribution. We study the impact of including these data on the NNPDF2.3QED, NNPDF3.0QED and CT14QEDinc fits. We find that these data place a useful and complementary cross-check on the photon distribution, which is consistent with the LUXqed prediction while suggesting that the NNPDF photon error band should be significantly reduced. Additionally, we propose a simple model for describing the two-photon production of W⁺ W ^– at the LHC. In conclusion, using this model, we constrain the number of inelastic photons that remain after the experimental cuts are applied.

Authors:

Obul, Pazilet ^[1]; Ababekri, Mamut ^[1]; Dulat, Sayipjamal ^[1];

^[2];

^[3];

^[3]

Xinjiang Univ., Xinjiang (China)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Michigan State Univ., East Lansing, MI (United States)

Publication Date:: 2018-09-25

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1497101

Report Number(s):: arXiv:1603.04874; FERMILAB-PUB-18-742-T
Journal ID: ISSN 1674-1137; 1428662

Grant/Contract Number:: AC02-07CH11359

Resource Type:: Accepted Manuscript

Journal Name:: Chinese Physics. C, High Energy Physics and Nuclear Physics

Additional Journal Information:: Journal Volume: 42; Journal Issue: 11; Journal ID: ISSN 1674-1137

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; applications of electroweak models to specific processes; summation of perturbation theory; inclusive production with identified leptons; photons or other nonhadronic particles

Citation Formats


                    Obul, Pazilet, Ababekri, Mamut, Dulat, Sayipjamal, Isaacson, Joshua, Schmidt, Carl, and Yuan, C. -P. Implications of CMS analysis of photon-photon interactions for photon PDFs.  United States: N. p., 2018. 
Web.  doi:10.1088/1674-1137/42/11/113101.

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                    Obul, Pazilet, Ababekri, Mamut, Dulat, Sayipjamal, Isaacson, Joshua, Schmidt, Carl, & Yuan, C. -P. Implications of CMS analysis of photon-photon interactions for photon PDFs.  United States.  https://doi.org/10.1088/1674-1137/42/11/113101

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                    Obul, Pazilet, Ababekri, Mamut, Dulat, Sayipjamal, Isaacson, Joshua, Schmidt, Carl, and Yuan, C. -P. Tue .  
"Implications of CMS analysis of photon-photon interactions for photon PDFs".  United States.  https://doi.org/10.1088/1674-1137/42/11/113101.  https://www.osti.gov/servlets/purl/1497101.

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@article{osti_1497101,

  title        = {Implications of CMS analysis of photon-photon interactions for photon PDFs},

  author       = {Obul, Pazilet and Ababekri, Mamut and Dulat, Sayipjamal and Isaacson, Joshua and Schmidt, Carl and Yuan, C. -P.},

  abstractNote = {As part of a recent analysis of exclusive two-photon production of W+ W – pairs at the LHC, the CMS experiment used di-lepton data to obtain an “effective” photon-photon luminosity. We show how the CMS analysis on their 8 TeV data, along with some assumptions about the likelihood for events in which the proton breaks up to pass the selection criteria, can be used to significantly constrain the photon parton distribution functions, such as those from the CTEQ, MRST, and NNPDF collaborations. We compare the data with predictions using these photon distributions, as well as the new LUXqed photon distribution. We study the impact of including these data on the NNPDF2.3QED, NNPDF3.0QED and CT14QEDinc fits. We find that these data place a useful and complementary cross-check on the photon distribution, which is consistent with the LUXqed prediction while suggesting that the NNPDF photon error band should be significantly reduced. Additionally, we propose a simple model for describing the two-photon production of W+ W – at the LHC. In conclusion, using this model, we constrain the number of inelastic photons that remain after the experimental cuts are applied.},

  doi          = {10.1088/1674-1137/42/11/113101},

  journal      = {Chinese Physics. C, High Energy Physics and Nuclear Physics},

  number       = 11,

  volume       = 42,

  place        = {United States},

  year         = {2018},

  month        = {9}

}

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Journal Article:

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https://doi.org/10.1088/1674-1137/42/11/113101

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Figures / Tables:

Figure 1: Various elastic (EPA), inelastic (CT14QED) and inclusive (CT14QEDinc, LUXqed, NNPDF3.0) photon PDF distributions at (a) Q=3.2 GeV and (b) Q=100 GeV.

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Works referenced in this record:

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Works referencing / citing this record:

Probing the photonic content of the proton using photon-induced dilepton production in $p + Pb$ collisions at the LHC
journal, June 2019

Dyndal, M.; Glazov, A.; Luszczak, M.
Physical Review D, Vol. 99, Issue 11
DOI: 10.1103/physrevd.99.114008

Probing the photonic content of the proton using photon-induced dilepton production in p+Pb collisions at the LHC
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Dyndal, Mateusz; Glazov, Alexander; Luszczak, Marta
Deutsches Elektronen-Synchrotron, DESY, Hamburg
DOI: 10.3204/pubdb-2019-03016

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Title: Implications of CMS analysis of photon-photon interactions for photon PDFs

Abstract

Citation Formats

Figures / Tables:

Parton distributions incorporating QED contributions journal, February 2005

Parton distributions with QED corrections journal, December 2013

Parton distributions for the LHC run II journal, April 2015

Measurement of isolated photon production in deep inelastic ep scattering journal, April 2010

The photon PDF of the proton journal, September 2014

The two-photon particle production mechanism. Physical problems. Applications. Equivalent photon approximation journal, January 1975

How Bright is the Proton? A Precise Determination of the Photon Parton Distribution Function journal, December 2016

Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC journal, August 2008

Anomalous quartic W W γ γ , Z Z γ γ , and trilinear W W γ couplings in two-photon processes at high luminosity at the LHC journal, April 2010

Search for anomalous quartic W W γ γ couplings in dielectron and missing energy final states in p p ¯ collisions at s = 1.96 TeV journal, July 2013

Bosonic quartic couplings at LEP2 journal, March 2000

Constraints on anomalous quartic gauge boson couplings from ν ν ¯ γ γ and q q ¯ γ γ events at CERN LEP2 journal, August 2004

A study of W+W−γ events at LEP journal, January 2004

Measurement of the W+W−γ cross-section and first direct limits on anomalous electroweak quartic gauge couplings journal, December 1999

The reaction at LEP and constraints on anomalous quartic gauge boson couplings journal, July 2002

Study of the W+W−γ process and limits on anomalous quartic gauge boson couplings at LEP journal, February 2002

Evidence for exclusive γγ → W + W − production and constraints on anomalous quartic gauge couplings in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV journal, August 2016

Study of exclusive two-photon production of W+W− in pp collisions at $ \sqrt{s}=7 $ TeV and constraints on anomalous quartic gauge couplings journal, July 2013

The photon PDF in events with rapidity gaps journal, May 2016

Implications of hadron collider observables on parton distribution function uncertainties journal, October 1998

Reweighting NNPDFs: The W lepton asymmetry journal, August 2011

Erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] journal, January 2012

Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143] journal, February 2012

Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data journal, February 2012

Bayesian reweighting for global fits journal, June 2014

Uncertainties of predictions from parton distribution functions. II. The Hessian method journal, December 2001

Heavy Majorana neutrinos from Wγ fusion at hadron colliders journal, February 2015

Probing the photonic content of the proton using photon-induced dilepton production in p + Pb collisions at the LHC journal, June 2019

Probing the photonic content of the proton using photon-induced dilepton production in p+Pb collisions at the LHC text, January 2019

Parton distributions incorporating QED contributions
journal, February 2005

Parton distributions with QED corrections
journal, December 2013

Parton distributions for the LHC run II
journal, April 2015

Measurement of isolated photon production in deep inelastic ep scattering
journal, April 2010

The photon PDF of the proton
journal, September 2014

The two-photon particle production mechanism. Physical problems. Applications. Equivalent photon approximation
journal, January 1975

How Bright is the Proton? A Precise Determination of the Photon Parton Distribution Function
journal, December 2016

Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC
journal, August 2008

Anomalous quartic $W W γ γ$ , $Z Z γ γ$ , and trilinear $W W γ$ couplings in two-photon processes at high luminosity at the LHC
journal, April 2010

Search for anomalous quartic $W W γ γ$ couplings in dielectron and missing energy final states in $p \bar{p}$ collisions at $\sqrt{s} = 1.96 TeV$
journal, July 2013

Bosonic quartic couplings at LEP2
journal, March 2000

Constraints on anomalous quartic gauge boson couplings from $ν \bar{ν} γ γ$ and $q \bar{q} γ γ$ events at CERN LEP2
journal, August 2004

A study of W+W−γ events at LEP
journal, January 2004

Measurement of the W+W−γ cross-section and first direct limits on anomalous electroweak quartic gauge couplings
journal, December 1999

The reaction at LEP and constraints on anomalous quartic gauge boson couplings
journal, July 2002

Study of the W+W−γ process and limits on anomalous quartic gauge boson couplings at LEP
journal, February 2002

Evidence for exclusive γγ → W + W − production and constraints on anomalous quartic gauge couplings in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
journal, August 2016

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journal, July 2013

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journal, May 2016

Implications of hadron collider observables on parton distribution function uncertainties
journal, October 1998

Reweighting NNPDFs: The W lepton asymmetry
journal, August 2011

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journal, January 2012

Second erratum to “Reweighting NNPDFs: The W lepton asymmetry” [Nucl. Phys. B 849 (1) (2011) 112–143]
journal, February 2012

Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data
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