Search for New Phenomena in Final States with Two Leptons and One or No b -Tagged Jets at s =13 TeV Using the ATLAS Detector
Aad, G ; Corrigan, Eric Edward LU ; Doglioni, Caterina LU ; Geisen, Jannik LU
; Hansen, E.
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Konya, Balazs
LU
; Lytken, Else
LU
and Mankinen, Katja
LU
, et al.
(2021)
In Physical Review Letters
127(14).
- Abstract
- A search for new phenomena is presented in final states with two leptons and one or no b-tagged jets. The event selection requires the two leptons to have opposite charge, the same flavor (electrons or muons), and a large invariant mass. The analysis is based on the full run-2 proton-proton collision dataset recorded at a center-of-mass energy of s=13 TeV by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 139 fb-1. No significant deviation from the expected background is observed in the data. Inspired by the B-meson decay anomalies, a four-fermion contact interaction between two quarks (b, s) and two leptons (ee or μμ) is used as a benchmark signal model, which is characterized by the energy scale and... (More)
- A search for new phenomena is presented in final states with two leptons and one or no b-tagged jets. The event selection requires the two leptons to have opposite charge, the same flavor (electrons or muons), and a large invariant mass. The analysis is based on the full run-2 proton-proton collision dataset recorded at a center-of-mass energy of s=13 TeV by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 139 fb-1. No significant deviation from the expected background is observed in the data. Inspired by the B-meson decay anomalies, a four-fermion contact interaction between two quarks (b, s) and two leptons (ee or μμ) is used as a benchmark signal model, which is characterized by the energy scale and coupling, Λ and g∗, respectively. Contact interactions with Λ/g∗ lower than 2.0 (2.4) TeV are excluded for electrons (muons) at the 95% confidence level, still far below the value that is favored by the B-meson decay anomalies. Model-independent limits are set as a function of the minimum dilepton invariant mass, which allow the results to be reinterpreted in various signal scenarios. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2d8c9299-6cf4-4d6c-9e3e-b935a732523d
- author
- Aad, G
; Corrigan, Eric Edward
LU
; Doglioni, Caterina
LU
; Geisen, Jannik
LU
; Hansen, E.
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Konya, Balazs
LU
; Lytken, Else
LU
and Mankinen, Katja
LU
, et al. (More)
- Aad, G
; Corrigan, Eric Edward
LU
; Doglioni, Caterina
LU
; Geisen, Jannik
LU
; Hansen, E.
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Konya, Balazs
LU
; Lytken, Else
LU
; Mankinen, Katja
LU
; Marcon, Caterina
LU
; Mullier, Geoffrey André Adrien
LU
; Pöttgen, Ruth
LU
; Skorda, Eleni
LU
; Smirnova, Oxana
LU
and Zwalinski, L
(Less)
- author collaboration
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 127
- issue
- 14
- article number
- 141801
- publisher
- American Physical Society
- external identifiers
-
- scopus:85117883498
- pmid:34652194
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.127.141801
- language
- English
- LU publication?
- yes
- id
- 2d8c9299-6cf4-4d6c-9e3e-b935a732523d
- date added to LUP
- 2021-11-23 12:00:16
- date last changed
- 2023-04-02 19:30:45
@article{2d8c9299-6cf4-4d6c-9e3e-b935a732523d,
abstract = {{A search for new phenomena is presented in final states with two leptons and one or no b-tagged jets. The event selection requires the two leptons to have opposite charge, the same flavor (electrons or muons), and a large invariant mass. The analysis is based on the full run-2 proton-proton collision dataset recorded at a center-of-mass energy of s=13 TeV by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 139 fb-1. No significant deviation from the expected background is observed in the data. Inspired by the B-meson decay anomalies, a four-fermion contact interaction between two quarks (b, s) and two leptons (ee or μμ) is used as a benchmark signal model, which is characterized by the energy scale and coupling, Λ and g∗, respectively. Contact interactions with Λ/g∗ lower than 2.0 (2.4) TeV are excluded for electrons (muons) at the 95% confidence level, still far below the value that is favored by the B-meson decay anomalies. Model-independent limits are set as a function of the minimum dilepton invariant mass, which allow the results to be reinterpreted in various signal scenarios.}},
author = {{Aad, G and Corrigan, Eric Edward and Doglioni, Caterina and Geisen, Jannik and Hansen, E. and Hedberg, Vincent and Jarlskog, Göran and Konya, Balazs and Lytken, Else and Mankinen, Katja and Marcon, Caterina and Mullier, Geoffrey André Adrien and Pöttgen, Ruth and Skorda, Eleni and Smirnova, Oxana and Zwalinski, L}},
issn = {{1079-7114}},
language = {{eng}},
number = {{14}},
publisher = {{American Physical Society}},
series = {{Physical Review Letters}},
title = {{Search for New Phenomena in Final States with Two Leptons and One or No b -Tagged Jets at s =13 TeV Using the ATLAS Detector}},
url = {{http://dx.doi.org/10.1103/PhysRevLett.127.141801}},
doi = {{10.1103/PhysRevLett.127.141801}},
volume = {{127}},
year = {{2021}},
}