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Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector

Publication ,  Journal Article
Aad, G; Abbott, B; Abbott, DC; Abed Abud, A; Abeling, K; Abhayasinghe, DK; Abidi, SH; Abouzeid, OS; Abraham, NL; Abramowicz, H; Abreu, H ...
Published in: Physical Review D
March 1, 2020

This paper presents results of searches for the electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139 fb-1 of s=13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider. Events with missing transverse momentum and two same-flavor, oppositely charged, low-transverse-momentum leptons are selected, and are further categorized by the presence of hadronic activity from initial-state radiation or a topology compatible with vector-boson fusion processes. The data are found to be consistent with predictions from the Standard Model. The results are interpreted using simplified models of R-parity-conserving supersymmetry in which the lightest supersymmetric partner is a neutralino with a mass similar to the lightest chargino, the second-to-lightest neutralino, or the slepton. Lower limits on the masses of charginos in different simplified models range from 193 to 240 GeV for moderate mass splittings, and extend down to mass splittings of 1.5 to 2.4 GeV at the LEP chargino bounds (92.4 GeV). Similar lower limits on degenerate light-flavor sleptons extend up to masses of 251 GeV and down to mass splittings of 550 MeV. Constraints on vector-boson fusion production of electroweak SUSY states are also presented.

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Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

March 1, 2020

Volume

101

Issue

5
 

Citation

APA
Chicago
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MLA
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Aad, G., Abbott, B., Abbott, D. C., Abed Abud, A., Abeling, K., Abhayasinghe, D. K., … Arduh, F. A. (2020). Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector. Physical Review D, 101(5). https://doi.org/10.1103/PhysRevD.101.052005
Aad, G., B. Abbott, D. C. Abbott, A. Abed Abud, K. Abeling, D. K. Abhayasinghe, S. H. Abidi, et al. “Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector.” Physical Review D 101, no. 5 (March 1, 2020). https://doi.org/10.1103/PhysRevD.101.052005.
Aad G, Abbott B, Abbott DC, Abed Abud A, Abeling K, Abhayasinghe DK, et al. Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector. Physical Review D. 2020 Mar 1;101(5).
Aad, G., et al. “Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector.” Physical Review D, vol. 101, no. 5, Mar. 2020. Scopus, doi:10.1103/PhysRevD.101.052005.
Aad G, Abbott B, Abbott DC, Abed Abud A, Abeling K, Abhayasinghe DK, Abidi SH, Abouzeid OS, Abraham NL, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Achkar B, Adachi S, Adam L, Adam Bourdarios C, Adamczyk L, Adamek L, Adelman J, Adersberger M, Adiguzel A, Adorni S, Adye T, Affolder AA, Afik Y, Agapopoulou C, Agaras MN, Aggarwal A, Agheorghiesei C, Aguilar-Saavedra JA, Ahmadov F, Ahmed WS, Ai X, Aielli G, Akatsuka S, Åkesson TPA, Akilli E, Akimov AV, Al Khoury K, Alberghi GL, Albert J, Alconada Verzini MJ, Alderweireldt S, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alfonsi A, Alfonsi F, Alhroob M, Ali B, Aliev M, Alimonti G, Allaire C, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso F, Alpigiani C, Alshehri AA, Alvarez Estevez M, Alviggi MG, Amaral Coutinho Y, Ambler A, Ambroz L, Amelung C, Amidei D, Amor Dos Santos SP, Amoroso S, Amrouche CS, An F, Anastopoulos C, Andari N, Andeen T, Anders CF, Anders JK, Andreazza A, Andrei V, Anelli CR, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antipov E, Antonelli M, Antrim DJA, Anulli F, Aoki M, Aparisi Pozo JA, Aperio Bella L, Araque JP, Araujo Ferraz V, Araujo Pereira R, Arcangeletti C, Arce ATH, Arduh FA. Searches for electroweak production of supersymmetric particles with compressed mass spectra in s =13 TeV pp collisions with the ATLAS detector. Physical Review D. 2020 Mar 1;101(5).

Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

March 1, 2020

Volume

101

Issue

5