| |
Record |
Links |
|
Author  |
LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Lucio Martinez, M.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Svintozelskyi, V.; Velilla Serna, J.; Zhuo, J. |
|
| |
Title |
Measurement of the Top-Quark Production Cross Section and Charge Asymmetry at LHCb |
Type |
Journal Article |
| |
Year |
2026 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
|
| |
Volume |
136 |
Issue |
22 |
Pages |
221801 - 15pp |
|
| |
Keywords |
|
|
| |
Abstract |
The first measurements of the top- and antitop-quark differential production cross sections and the top-quark charge asymmetry in the forward region are presented, using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.4 fb(-1). The total production cross sections of top and antitop quarks are also determined. Measurements are performed using the μ+ b-jet final state within a fiducial region defined by b-jet p(T, jet) > 50 GeV and pseudorapidity 2.2 < eta(jet) < 4.0, with the muon from the W-boson decay required to have p(T, mu) > 25 GeV and 2.0 < eta(mu) < 4.5. The muon and b-jet system must satisfy p(T)(mu + jet) > 20 GeV. The measured integrated production cross sections for the top and antitop quarks are sigma(t) = 0.95 +/- 0.04 +/- 0.08 +/- 0.02 pb, sigma((t) over bar) = 0.81 +/- 0.03 +/- 0.07 +/- 0.02 pb, where the first uncertainty is statistical, the second systematic, and the third accounts for the luminosity uncertainty. The top-quark charge asymmetry is measured to be A(C)(t) = 0.08 +/- 0.03 +/- 0.01, where the first uncertainty is statistical and the second is systematic. These results are consistent with next-to-leading order Standard Model predictions. |
|
| |
Address |
[Bonacci, R. B.; Dekkers, S.; Egede, U.; Hadavizadeh, T.; Harris, T. J.; Henderson, R. D. L.; Jelavic, A.; Lane, J. J.; Liu, F. L.; Lobo, I.; Song, R.; Walton, E. J.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Amer Physical Soc |
Place of Publication |
|
Editor |
|
|
| |
Language |
English |
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0031-9007 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
WOS:001800303900001 |
Approved |
no |
|
| |
Is ISI |
yes |
International Collaboration |
yes |
|
| |
Call Number |
IFIC @ pastor @ |
Serial |
7304 |
|
| Permanent link to this record |
