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Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC

Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC
Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC
We study the phenomenology of Drell-Yan processes at the Large Hadron Collider for the case of both the neutral and charged current channels within a recently proposed 4-Dimensional formulation of the Minimal Composite Higgs Model. We estimate the integrated and differential event rates at the CERN machine, assuming 14 TeV and data samples of ${\cal O}(100 {\rm{fb}}^{-1})$, as at lower energy and/or luminosity event rates are prohibitively small. We pay particular attention to the presence of multiple resonances in either channel, by showing that in certain region of parameter space some of these can be distinguishable and experimentally accessible in the invariant and/or transverse mass distribution, sampled in either the cross section, the forward-backward asymmetry or both. At the same time, we assess the indirect impact onto the line-shape of the emerging gauge boson resonances, both neutral and charged, of additional heavy fermionic states present in the spectrum of the model. Finally, we show how to exploit in the kinematic selection the fact that the extra neutral and charged gauge boson resonances in composite Higgs models are correlated in mass. Such results rely on a parton level study including a statystical error analysis.
Barducci, Daniele
d0289bdd-ac34-493c-95cd-36d811070ecc
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Curtis, Stefania De
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Pruna, Giovanni Marco
1cfcac6c-e730-4c1a-b460-62e7fef81a1b
Barducci, Daniele
d0289bdd-ac34-493c-95cd-36d811070ecc
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Curtis, Stefania De
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Pruna, Giovanni Marco
1cfcac6c-e730-4c1a-b460-62e7fef81a1b

Barducci, Daniele, Belyaev, Alexander, Curtis, Stefania De, Moretti, Stefano and Pruna, Giovanni Marco (2013) Exploring Drell-Yan signals from the 4D Composite Higgs Model at the LHC. Journal of High Energy Physics, 2013 (04), [152]. (doi:10.1007/JHEP04(2013)152).

Record type: Article

Abstract

We study the phenomenology of Drell-Yan processes at the Large Hadron Collider for the case of both the neutral and charged current channels within a recently proposed 4-Dimensional formulation of the Minimal Composite Higgs Model. We estimate the integrated and differential event rates at the CERN machine, assuming 14 TeV and data samples of ${\cal O}(100 {\rm{fb}}^{-1})$, as at lower energy and/or luminosity event rates are prohibitively small. We pay particular attention to the presence of multiple resonances in either channel, by showing that in certain region of parameter space some of these can be distinguishable and experimentally accessible in the invariant and/or transverse mass distribution, sampled in either the cross section, the forward-backward asymmetry or both. At the same time, we assess the indirect impact onto the line-shape of the emerging gauge boson resonances, both neutral and charged, of additional heavy fermionic states present in the spectrum of the model. Finally, we show how to exploit in the kinematic selection the fact that the extra neutral and charged gauge boson resonances in composite Higgs models are correlated in mass. Such results rely on a parton level study including a statystical error analysis.

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More information

Published date: 29 April 2013
Additional Information: 42 pages, 19 figures, changes for publication in JHEP
Organisations: Theory Group, Physics & Astronomy

Identifiers

Local EPrints ID: 356676
URI: http://eprints.soton.ac.uk/id/eprint/356676
PURE UUID: 9496c6f6-aca3-4daf-9837-f2807011865d
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 23 Sep 2013 13:12
Last modified: 26 Nov 2019 01:43

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Contributors

Author: Daniele Barducci
Author: Stefania De Curtis
Author: Stefano Moretti
Author: Giovanni Marco Pruna

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