: The inclusive b ¯b- and cc¯-dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb−1 . Differential cross-sections are measured as a function of the transverse momentum and of the pseudorapidity of the leading jet, of the rapidity difference between the jets, and of the dijet invariant mass. A fiducial region for the measurement is defined by requiring that the two jets originating from the two b or c quarks are emitted with transverse momentum greater than 20 GeV/c, pseudorapidity in the range 2.2 < η < 4.2, and with a difference in the azimuthal angle between the two jets greater than 1.5. The integrated b ¯b-dijet cross-section is measured to be 53.0±9.7 nb, and the total cc¯-dijet crosssection is measured to be 73 ± 16 nb. The ratio between cc¯- and b ¯b-dijet cross-sections is also measured and found to be 1.37 ± 0.27. The results are in agreement with theoretical predictions at next-to-leading order.

Measurement of differential bb¯ - and cc¯ -dijet cross-sections in the forward region of pp collisions at √s = 13 TeV / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Amato, S., Amhis, Y., An, L., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2021:2(2021). [10.1007/JHEP02(2021)023]

Measurement of differential bb¯ - and cc¯ -dijet cross-sections in the forward region of pp collisions at √s = 13 TeV

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2021

Abstract

: The inclusive b ¯b- and cc¯-dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb−1 . Differential cross-sections are measured as a function of the transverse momentum and of the pseudorapidity of the leading jet, of the rapidity difference between the jets, and of the dijet invariant mass. A fiducial region for the measurement is defined by requiring that the two jets originating from the two b or c quarks are emitted with transverse momentum greater than 20 GeV/c, pseudorapidity in the range 2.2 < η < 4.2, and with a difference in the azimuthal angle between the two jets greater than 1.5. The integrated b ¯b-dijet cross-section is measured to be 53.0±9.7 nb, and the total cc¯-dijet crosssection is measured to be 73 ± 16 nb. The ratio between cc¯- and b ¯b-dijet cross-sections is also measured and found to be 1.37 ± 0.27. The results are in agreement with theoretical predictions at next-to-leading order.
2021
Charm physics; Forward physics; Hadron-Hadron scattering (experiments); Jet physics; QCD
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of differential bb¯ - and cc¯ -dijet cross-sections in the forward region of pp collisions at √s = 13 TeV / Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Amato, S., Amhis, Y., An, L., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2021:2(2021). [10.1007/JHEP02(2021)023]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1579916
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