Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV

Abazov, V M; Abbott, B; Abolins, M; Acharya, Bannanje Sripath; Adams, M; Adams, T; Aguilo, E; Ahsan, M; Alexeev, G D; Alkhazov, Georgiy D; Alton, Andrew K

doi:10.1016/j.physletb.2009.05.058

Title: Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV

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Abstract

We present cross section measurements for Z/{gamma}* + jets + X production, differential in the transverse momenta of the three leading jets. The data sample was collected with the D0 detector at the Fermilab Tevatron p{bar p} collider at a center-of-mass energy of 1.96 TeV and corresponds to an integrated luminosity of 1 fb{sup -1}. Leading and next-to-leading order perturbative QCD predictions are compared with the measurements, and agreement is found within the theoretical and experimental uncertainties. We also make comparisons with the predictions of four event generators. Two parton-shower-based generators show significant shape and normalization differences with respect to the data. In contrast, two generators combining tree-level matrix elements with a parton shower give a reasonable description of the shapes observed in data, but the predicted normalizations show significant differences with respect to the data, reflecting large scale uncertainties. For specific choices of scales, the normalizations for either generator can be made to agree with the measurements.

Authors:: Abazov, V M; Abbott, B; Abolins, M; Acharya, Bannanje Sripath; Adams, M; Adams, T; Aguilo, E; Ahsan, M; Alexeev, G D; Alkhazov, Georgiy D; Alton, Andrew K

Publication Date:: Sun Mar 01 00:00:00 EST 2009

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 951355

Report Number(s):: FERMILAB-PUB-09-066-E
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:0903.1748; TRN: US0902210

DOE Contract Number:: AC02-07CH11359

Resource Type:: Journal Article

Journal Name:: Submitted to Phys.Lett.B

Additional Journal Information:: Journal Volume: 678; Journal Issue: 1; Journal ID: ISSN 0370-2693

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; DIFFERENTIAL CROSS SECTIONS; FERMILAB TEVATRON; LUMINOSITY; MATRIX ELEMENTS; PRODUCTION; QUANTUM CHROMODYNAMICS; SHAPE; Experiment-HEP

Citation Formats


                    Abazov, V M, /Dubna, JINR, Abbott, B, /Oklahoma U., Abolins, M, /Michigan State U., Acharya, Bannanje Sripath, /Tata Inst., Adams, M, /Illinois U., Chicago, Adams, T, /Florida State U., Aguilo, E, /Alberta U. /Simon Fraser U. /York U., Canada /McGill U., Ahsan, M, /Kansas State U., Alexeev, G D, /Dubna, JINR, Alkhazov, Georgiy D, /St. Petersburg, INP, Alton, Andrew K, and /Michigan State U. /Northeastern U. Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV.  United States: N. p., 2009. 
        Web.  doi:10.1016/j.physletb.2009.05.058.

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                    Abazov, V M, /Dubna, JINR, Abbott, B, /Oklahoma U., Abolins, M, /Michigan State U., Acharya, Bannanje Sripath, /Tata Inst., Adams, M, /Illinois U., Chicago, Adams, T, /Florida State U., Aguilo, E, /Alberta U. /Simon Fraser U. /York U., Canada /McGill U., Ahsan, M, /Kansas State U., Alexeev, G D, /Dubna, JINR, Alkhazov, Georgiy D, /St. Petersburg, INP, Alton, Andrew K, & /Michigan State U. /Northeastern U. Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV.  United States.  https://doi.org/10.1016/j.physletb.2009.05.058

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                    Abazov, V M, /Dubna, JINR, Abbott, B, /Oklahoma U., Abolins, M, /Michigan State U., Acharya, Bannanje Sripath, /Tata Inst., Adams, M, /Illinois U., Chicago, Adams, T, /Florida State U., Aguilo, E, /Alberta U. /Simon Fraser U. /York U., Canada /McGill U., Ahsan, M, /Kansas State U., Alexeev, G D, /Dubna, JINR, Alkhazov, Georgiy D, /St. Petersburg, INP, Alton, Andrew K, and /Michigan State U. /Northeastern U. 2009.  
        "Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV".  United States.  https://doi.org/10.1016/j.physletb.2009.05.058.  https://www.osti.gov/servlets/purl/951355.

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@article{osti_951355,

  title        = {Measurements of differential cross sections of Z/gamma*+jets+X events in proton anti-proton collisions at s**(1/2) = 1.96-TeV},

  author       = {Abazov, V M and /Dubna, JINR and Abbott, B and /Oklahoma U. and Abolins, M and /Michigan State U. and Acharya, Bannanje Sripath and /Tata Inst. and Adams, M and /Illinois U., Chicago and Adams, T and /Florida State U. and Aguilo, E and /Alberta U. /Simon Fraser U. /York U., Canada /McGill U. and Ahsan, M and /Kansas State U. and Alexeev, G D and /Dubna, JINR and Alkhazov, Georgiy D and /St. Petersburg, INP and Alton, Andrew K and /Michigan State U. /Northeastern U.},

  abstractNote = {We present cross section measurements for Z/{gamma}* + jets + X production, differential in the transverse momenta of the three leading jets. The data sample was collected with the D0 detector at the Fermilab Tevatron p{bar p} collider at a center-of-mass energy of 1.96 TeV and corresponds to an integrated luminosity of 1 fb{sup -1}. Leading and next-to-leading order perturbative QCD predictions are compared with the measurements, and agreement is found within the theoretical and experimental uncertainties. We also make comparisons with the predictions of four event generators. Two parton-shower-based generators show significant shape and normalization differences with respect to the data. In contrast, two generators combining tree-level matrix elements with a parton shower give a reasonable description of the shapes observed in data, but the predicted normalizations show significant differences with respect to the data, reflecting large scale uncertainties. For specific choices of scales, the normalizations for either generator can be made to agree with the measurements.},

  doi          = {10.1016/j.physletb.2009.05.058},

  url          = {https://www.osti.gov/biblio/951355},
  journal      = {Submitted to Phys.Lett.B},

  issn         = {0370-2693},

  number       = 1,

  volume       = 678,

  place        = {United States},

  year         = {Sun Mar 01 00:00:00 EST 2009},

  month        = {Sun Mar 01 00:00:00 EST 2009}

}

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