Search for bottom squark pair production in proton–proton collisions at √s=13 TeV with the ATLAS detector

M Aaboud; G Aad; B Abbott; J Abdallah; O Abdinov; B Abeloos; Torsten Åkesson; Simona Bocchetta; LENE Bryngemark; Caterina Doglioni; Anders Floderus; Vincent Hedberg; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration; U Mallik

doi:10.1140/epjc/s10052-016-4382-4

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Search for bottom squark pair production in proton–proton collisions at √s=13 TeV with the ATLAS detector

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Search for bottom squark pair production in proton–proton collisions at √s=13 TeV with the ATLAS detector

M Aaboud, G Aad, B Abbott, J Abdallah, O Abdinov, B Abeloos, Torsten Åkesson, Simona Bocchetta, LENE Bryngemark, Caterina Doglioni, …

The European physical journal. C, Particles and fields, Vol.76(10), 547

2016

DOI: 10.1140/epjc/s10052-016-4382-4

PMID: 28316487

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Abstract

The result of a search for pair production of the supersymmetric partner of the Standard Model bottom quark (b~1) is reported. The search uses 3.2 fb- 1 of pp collisions at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider in 2015. Bottom squarks are searched for in events containing large missing transverse momentum and exactly two jets identified as originating from b-quarks. No excess above the expected Standard Model background yield is observed. Exclusion limits at 95 % confidence level on the mass of the bottom squark are derived in phenomenological supersymmetric R-parity-conserving models in which the b~1 is the lightest squark and is assumed to decay exclusively via b~1â†’bÏ‡~10, where Ï‡~10 is the lightest neutralino. The limits significantly extend previous results; bottom squark masses up to 800 (840) GeV are excluded for the Ï‡~10 mass below 360 (100) GeV whilst differences in mass above 100 GeV between the b~1 and the Ï‡~10 are excluded up to a b~1 mass of 500 GeV. Â© 2016, CERN for the benefit of the ATLAS collaboration.

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Title: Subtitle: Search for bottom squark pair production in proton–proton collisions at √s=13 TeV with the ATLAS detector
Creators: M Aaboud - Premier University
G Aad - Aix-Marseille Université
B Abbott - University of Oklahoma
J Abdallah - University of Iowa
O Abdinov - Azerbaijan National Academy of Sciences
B Abeloos - Université Paris-Sud
Torsten Åkesson - Particle Physics
Simona Bocchetta - Lund University
LENE Bryngemark - Lund University
Caterina Doglioni - Particle Physics
Anders Floderus - Particle Physics
Vincent Hedberg - Particle Physics
Göran Jarlskog - Particle Physics
Else Lytken - Particle Physics
Ulf Mjörnmark - Particle Physics
Oxana Smirnova - Particle Physics
Oleksandr Viazlo - Particle Physics
ATLAS Collaboration
U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: The European physical journal. C, Particles and fields, Vol.76(10), 547
DOI: 10.1140/epjc/s10052-016-4382-4
PMID: 28316487
NLM abbreviation: Eur Phys J C Part Fields
ISSN: 1434-6044
eISSN: 1434-6052
Publisher: Springer
Language: English
Date published: 2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984200037802771

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