Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV
Authors
Khachatryan, V.Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Milošević, Jovan
Reković, Vladimir
Đorđević, Miloš
Milenović, Predrag
CMS Collaboration (ukupan broj autora: 2258)
Article (Published version)
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A measurement of the double-differential inclusive jet cross section as a function of the jet transverse momentum p(T) and the absolute jet rapidity |y| is presented. Data from LHC proton-proton collisions at root s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb(-1), have been collected with the CMS detector. Jets are reconstructed using the anti-k(T) clustering algorithm with a size parameter of 0.7 in a phase space region covering jet p(T) from 74 GeV up to 2.5 TeV and jet absolute rapidity up to |y| = 3.0. The low-p(T) jet range between 21 and 74 GeV is also studied up to |y| = 4.7, using a dedicated data sample corresponding to an integrated luminosity of 5.6 pb(-1). The measured jet cross section is corrected for detector effects and compared with the predictions from perturbative QCD at next-to-leading order (NLO) using various sets of parton distribution functions (PDF). Cross section ratios to the corresponding measurements performed at 2.76 and 7 TeV are present...ed. From the measured double-differential jet cross section, the value of the strong coupling constant evaluated at the Z mass is alpha(S)(M-Z) = 0.1164(-0.0043)(+0.0060) , where the errors include the PDF, scale, nonperturbative effects and experimental uncertainties, using the CT10 NLO PDFs. Improved constraints on PDFs based on the inclusive jet cross section measurement are presented.
Keywords:
Hadron-Hadron scattering (experiments) / Jet physics / QCD / Jets / proton-proton scatteringSource:
Journal of High Energy Physics, 2017, 3
DOI: 10.1007/JHEP03(2017)156
ISSN: 1029-8479
WoS: 000399155500001
Scopus: 2-s2.0-85017037401
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VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Ćirković, Predrag AU - Devetak, Damir AU - Milošević, Jovan AU - Reković, Vladimir AU - Đorđević, Miloš AU - Milenović, Predrag PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1507 AB - A measurement of the double-differential inclusive jet cross section as a function of the jet transverse momentum p(T) and the absolute jet rapidity |y| is presented. Data from LHC proton-proton collisions at root s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb(-1), have been collected with the CMS detector. Jets are reconstructed using the anti-k(T) clustering algorithm with a size parameter of 0.7 in a phase space region covering jet p(T) from 74 GeV up to 2.5 TeV and jet absolute rapidity up to |y| = 3.0. The low-p(T) jet range between 21 and 74 GeV is also studied up to |y| = 4.7, using a dedicated data sample corresponding to an integrated luminosity of 5.6 pb(-1). The measured jet cross section is corrected for detector effects and compared with the predictions from perturbative QCD at next-to-leading order (NLO) using various sets of parton distribution functions (PDF). Cross section ratios to the corresponding measurements performed at 2.76 and 7 TeV are presented. From the measured double-differential jet cross section, the value of the strong coupling constant evaluated at the Z mass is alpha(S)(M-Z) = 0.1164(-0.0043)(+0.0060) , where the errors include the PDF, scale, nonperturbative effects and experimental uncertainties, using the CT10 NLO PDFs. Improved constraints on PDFs based on the inclusive jet cross section measurement are presented. T2 - Journal of High Energy Physics T1 - Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV IS - 3 DO - 10.1007/JHEP03(2017)156 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Milošević, Jovan and Reković, Vladimir and Đorđević, Miloš and Milenović, Predrag", year = "2017", abstract = "A measurement of the double-differential inclusive jet cross section as a function of the jet transverse momentum p(T) and the absolute jet rapidity |y| is presented. Data from LHC proton-proton collisions at root s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb(-1), have been collected with the CMS detector. Jets are reconstructed using the anti-k(T) clustering algorithm with a size parameter of 0.7 in a phase space region covering jet p(T) from 74 GeV up to 2.5 TeV and jet absolute rapidity up to |y| = 3.0. The low-p(T) jet range between 21 and 74 GeV is also studied up to |y| = 4.7, using a dedicated data sample corresponding to an integrated luminosity of 5.6 pb(-1). The measured jet cross section is corrected for detector effects and compared with the predictions from perturbative QCD at next-to-leading order (NLO) using various sets of parton distribution functions (PDF). Cross section ratios to the corresponding measurements performed at 2.76 and 7 TeV are presented. From the measured double-differential jet cross section, the value of the strong coupling constant evaluated at the Z mass is alpha(S)(M-Z) = 0.1164(-0.0043)(+0.0060) , where the errors include the PDF, scale, nonperturbative effects and experimental uncertainties, using the CT10 NLO PDFs. Improved constraints on PDFs based on the inclusive jet cross section measurement are presented.", journal = "Journal of High Energy Physics", title = "Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV", number = "3", doi = "10.1007/JHEP03(2017)156" }
Khachatryan, V., Adžić, P., Ćirković, P., Devetak, D., Milošević, J., Reković, V., Đorđević, M.,& Milenović, P.. (2017). Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV. in Journal of High Energy Physics(3). https://doi.org/10.1007/JHEP03(2017)156
Khachatryan V, Adžić P, Ćirković P, Devetak D, Milošević J, Reković V, Đorđević M, Milenović P. Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV. in Journal of High Energy Physics. 2017;(3). doi:10.1007/JHEP03(2017)156 .
Khachatryan, V., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Milošević, Jovan, Reković, Vladimir, Đorđević, Miloš, Milenović, Predrag, "Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at root s=8 TeV and cross section ratios to 2.76 and 7 TeV" in Journal of High Energy Physics, no. 3 (2017), https://doi.org/10.1007/JHEP03(2017)156 . .