Search for Scalar Charm Quark Pair Production in pp Collisions at s =8 TeV with the ATLAS Detector

Atlas Collaboration, K. Cranmer, A. Haas, A. I. Mincer, P. Nemethy

Research output: Contribution to journalArticle

Abstract

The results of a dedicated search for pair production of scalar partners of charm quarks are reported. The search is based on an integrated luminosity of 20.3 fb-1 of pp collisions at s=8 TeV recorded with the ATLAS detector at the LHC. The search is performed using events with large missing transverse momentum and at least two jets, where the two leading jets are each tagged as originating from c quarks. Events containing isolated electrons or muons are vetoed. In an R-parity-conserving minimal supersymmetric scenario in which a single scalar-charm state is kinematically accessible, and where it decays exclusively into a charm quark and a neutralino, 95% confidence-level upper limits are obtained in the scalar-charm-neutralino mass plane such that, for neutralino masses below 200 GeV, scalar-charm masses up to 490 GeV are excluded.

Original languageEnglish (US)
JournalPhysical Review Letters
Volume114
Issue number16
DOIs
StatePublished - 2015

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pair production
quarks
scalars
collisions
detectors
transverse momentum
muons
confidence
parity
luminosity
decay
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Search for Scalar Charm Quark Pair Production in pp Collisions at s =8 TeV with the ATLAS Detector. / Atlas Collaboration; Cranmer, K.; Haas, A.; Mincer, A. I.; Nemethy, P.

In: Physical Review Letters, Vol. 114, No. 16, 2015.

Research output: Contribution to journalArticle

Atlas Collaboration ; Cranmer, K. ; Haas, A. ; Mincer, A. I. ; Nemethy, P. / Search for Scalar Charm Quark Pair Production in pp Collisions at s =8 TeV with the ATLAS Detector. In: Physical Review Letters. 2015 ; Vol. 114, No. 16.
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abstract = "The results of a dedicated search for pair production of scalar partners of charm quarks are reported. The search is based on an integrated luminosity of 20.3 fb-1 of pp collisions at s=8 TeV recorded with the ATLAS detector at the LHC. The search is performed using events with large missing transverse momentum and at least two jets, where the two leading jets are each tagged as originating from c quarks. Events containing isolated electrons or muons are vetoed. In an R-parity-conserving minimal supersymmetric scenario in which a single scalar-charm state is kinematically accessible, and where it decays exclusively into a charm quark and a neutralino, 95{\%} confidence-level upper limits are obtained in the scalar-charm-neutralino mass plane such that, for neutralino masses below 200 GeV, scalar-charm masses up to 490 GeV are excluded.",
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AU - Aad, G.

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AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

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AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

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AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Agatonovic-Jovin, T.

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AU - Akerstedt, H.

AU - Åkesson, T. P A

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

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AU - Allbrooke, B. M M

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AU - Haas, A.

AU - Mincer, A. I.

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