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Constraining Z' widths from pT measurements in Drell-Yan processes

Constraining Z' widths from pT measurements in Drell-Yan processes
Constraining Z' widths from pT measurements in Drell-Yan processes
We define a Focus Point (FP) Asymmetry, AFP, obtained by integrating the normalised transverse momentum distribution of either lepton produced in the Drell-Yan (DY) process below and above a point where a variety of popular Z' models all have the same magnitude. For a given Z' mass the position of this FP is predictable, depending only on the collider energy and on the low transverse momentum cut chosen in the normalisation procedure. The resulting AFP is very sensitive to the Z' width, and can be used to constrain this parameter in experimental fits.
hep-ph
2470-0010
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Fiaschi, Juri
a417f04d-05ec-4bff-bdee-ba20ac560fa7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Shepherd-Themistocleous, Claire H.
02e9b880-a622-4ad1-9b20-db7ed25b2fa8
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Fiaschi, Juri
a417f04d-05ec-4bff-bdee-ba20ac560fa7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Shepherd-Themistocleous, Claire H.
02e9b880-a622-4ad1-9b20-db7ed25b2fa8

Accomando, Elena, Fiaschi, Juri, Moretti, Stefano and Shepherd-Themistocleous, Claire H. (2017) Constraining Z' widths from pT measurements in Drell-Yan processes Physical Review D, 96 (doi:10.1103/PhysRevD.96.075019).

Record type: Article

Abstract

We define a Focus Point (FP) Asymmetry, AFP, obtained by integrating the normalised transverse momentum distribution of either lepton produced in the Drell-Yan (DY) process below and above a point where a variety of popular Z' models all have the same magnitude. For a given Z' mass the position of this FP is predictable, depending only on the collider energy and on the low transverse momentum cut chosen in the normalisation procedure. The resulting AFP is very sensitive to the Z' width, and can be used to constrain this parameter in experimental fits.

Other Constraining Z′ widths from pT measurements in Drell-Yan processes - Accepted Manuscript
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More information

Submitted date: 13 March 2017
Accepted/In Press date: 23 July 2017
e-pub ahead of print date: 16 October 2017
Keywords: hep-ph

Identifiers

Local EPrints ID: 413695
URI: http://eprints.soton.ac.uk/id/eprint/413695
ISSN: 2470-0010
PURE UUID: 46735f72-4275-4dc9-9cfd-0e1e384a0c07

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Date deposited: 31 Aug 2017 16:31
Last modified: 20 Nov 2017 17:31

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Contributors

Author: Elena Accomando
Author: Juri Fiaschi
Author: Stefano Moretti
Author: Claire H. Shepherd-Themistocleous

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