The inclusive b anti-b and c anti-c 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 anti-b dijet cross-section is measured to be 53.0 ± 9.7 nb, and the total c anti-c dijet cross-section is measured to be 73 ± 16 nb. The ratio between c anti-c and b anti-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.

Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Measurement of Differential b anti-b and c anti-c Dijet Cross-Sections in the Forward Region of pp Collisions at √s = 13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2021(2), 1-36 [10.1007/JHEP02(2021)023].

Measurement of Differential b anti-b and c anti-c Dijet Cross-Sections in the Forward Region of pp Collisions at √s = 13 TeV

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Zucchelli, S.;
2021

Abstract

The inclusive b anti-b and c anti-c 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 anti-b dijet cross-section is measured to be 53.0 ± 9.7 nb, and the total c anti-c dijet cross-section is measured to be 73 ± 16 nb. The ratio between c anti-c and b anti-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
Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Measurement of Differential b anti-b and c anti-c Dijet Cross-Sections in the Forward Region of pp Collisions at √s = 13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2021(2), 1-36 [10.1007/JHEP02(2021)023].
Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/848609
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