We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy root s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb(-1). The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license

Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton-proton collisions at 8 TeV / Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Eroe, J., Friedl, M., Fruehwirth, R., Ghete, V.M., Hartl, C., Hoermann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knuenz, V., Krammer, M., Kraetschmer, I., Liko, D., Mikulec, I., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 749:(2015), pp. 187-209. [10.1016/j.physletb.2015.07.065]

Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton-proton collisions at 8 TeV

MARZOCCHI, BADDER;BARONE, Luciano Maria;D'IMPERIO, GIULIA;DEL RE, Daniele;LONGO, Egidio;MARGAROLI, Fabrizio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;RAHATLOU, SHAHRAM;SANTANASTASIO, FRANCESCO;
2015

Abstract

We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy root s = 8 TeV, corresponding to an integrated luminosity of 19.7 fb(-1). The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license
2015
CMS; Physics; Z boson differential cross section; CONSTRAINTS
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton-proton collisions at 8 TeV / Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Eroe, J., Friedl, M., Fruehwirth, R., Ghete, V.M., Hartl, C., Hoermann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knuenz, V., Krammer, M., Kraetschmer, I., Liko, D., Mikulec, I., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 749:(2015), pp. 187-209. [10.1016/j.physletb.2015.07.065]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/897890
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