Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV

Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV. European physical journal. C - particles and fields, 76(3) EDP Sciences 10.1140/epjc/s10052-016-3978-z

[img]
Preview
Text
1510.05821.pdf - Accepted Version
Available under License Creative Commons: Attribution (CC-BY).

Download (2MB) | Preview
[img]
Preview
Text
10.1140_epjc_s10052-016-3978-z.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (4MB) | Preview

This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20fb⁻¹ of proton-proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy √s=8 TeV. A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50% efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2-4% for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques.

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:

1434-6044

Publisher:

EDP Sciences

Language:

English

Submitter:

Annette Krebs-Wegenast

Date Deposited:

15 Aug 2017 08:12

Last Modified:

20 Aug 2017 02:17

Publisher DOI:

10.1140/epjc/s10052-016-3978-z

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.100005

URI:

https://boris.unibe.ch/id/eprint/100005

Actions (login required)

Edit item Edit item
Provide Feedback