Measurement of total and differential W+W⁻ production cross sections in proton-proton collisions at √s= 8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings

Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Measurement of total and differential W+W⁻ production cross sections in proton-proton collisions at √s= 8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings. Journal of High Energy Physics, 2016(9) Springer 10.1007/JHEP09(2016)029

[img]
Preview
Text
1603.01702.pdf - Accepted Version
Available under License Creative Commons: Attribution (CC-BY).

Download (1MB) | Preview
[img]
Preview
Text
10.1007_JHEP09(2016)029.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (1MB) | Preview

The production of W boson pairs in proton-proton collisions at √s= 8 TeV is studied using data corresponding to 20.3 fb⁻¹ of integrated luminosity collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The W bosons are reconstructed using their leptonic decays into electrons or muons and neutrinos. Events with reconstructed jets are not included in the candidate event sample. A total of 6636 WW candidate events are observed. Measurements are performed in fiducial regions closely approximating the detector acceptance. The integrated measurement is corrected for all acceptance effects and for the W branching fractions to leptons in order to obtain the total WW production cross section, which is found to be 71.1±1.1 (stat) +5.7 −5.0 (syst)±1.4 pb. This agrees with the next-to-next-to-leading-order Standard Model prediction of 63.2 +1.6 −1.4 (scale)±1.2 (PDF) pb. Fiducial differential cross sections are measured as a function of each of six kinematic variables. The distribution of the transverse momentum of the leading lepton is used to set limits on anomalous triple-gauge-boson couplings.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Haug, Sigve; Weber, Michael and Beck, Hans Peter

Subjects:

500 Science > 530 Physics
500 Science > 510 Mathematics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Annette Krebs-Wegenast

Date Deposited:

08 Aug 2017 13:39

Last Modified:

13 Aug 2017 02:15

Publisher DOI:

10.1007/JHEP09(2016)029

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.99969

URI:

https://boris.unibe.ch/id/eprint/99969

Actions (login required)

Edit item Edit item
Provide Feedback