Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector

Article, Preprint English OPEN
ATLAS, Collaboration ; Agustoni, Marco ; Ancu, Lucian ; Battaglia, Andreas ; Beck, Hans Peter ; Borer, Claudia ; Ereditato, Antonio ; Gallo, Valentina ; Haug, Sigve ; Kabana, Sonja ; Kruker, Tobias ; Marti, Lukas ; Pretzl, Klaus-Peter ; Schneider, Basil ; Sciacca, Gianfranco ; Weber, Michael (2013)

A search has been performed for the experimental signature of an isolated photon with high transverse momentum, at least one jet identified as originating from a bottom quark, and high missing transverse momentum. Such a final state may originate from supersymmetric models with gauge-mediated supersymmetry breaking in events in which one of a pair of higgsino-like neutralinos decays into a photon and a gravitino while the other decays into a Higgs boson and a gravitino. The search is performed using the full dataset of 7 TeV proton–proton collisions recorded with the ATLAS detector at the LHC in 2011, corresponding to an integrated luminosity of 4.7 fb−1. A total of 7 candidate events are observed while 7.5±2.2 events are expected from the Standard Model background. The results of the search are interpreted in the context of general gauge mediation to exclude certain regions of a benchmark plane for higgsino-like neutralino production. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.
  • References (67)
    67 references, page 1 of 7

    [1] M. Dine, W. Fischler, Phys. Lett. B 110 (1982) 227, 0370-2693(82)91241-2.

    [2] L. Alvarez-Gaume, M. Claudson, M.B. Wise, Nucl. Phys. B 207 (1982) 96, http://

    [3] C.R. Nappi, B.A. Ovrut, Phys. Lett. B 113 (1982) 175, 0370-2693(82)90418-X.

    [4] M. Dine, A.E. Nelson, Phys. Rev. D 48 (1993) 1277, PhysRevD.48.1277, arXiv:hep-ph/9303230.

    [5] M. Dine, A.E. Nelson, Y. Shirman, Phys. Rev. D 51 (1995) 1362, 10.1103/PhysRevD.51.1362, arXiv:hep-ph/9408384.

    [6] M. Dine, A.E. Nelson, Y. Nir, Y. Shirman, Phys. Rev. D 53 (1996) 2658, http://, arXiv:hep-ph/9507378.

    [7] J.L. Feng, Ann. Rev. Astron. Astrophys. 48 (2010) 495, annurev-astro-082708-101659, arXiv:1003.0904.

    [8] V.M. Abazov, et al., D0 Collaboration, Phys. Rev. Lett. 105 (2010) 221802,, arXiv:1008.2133.

    [9] ATLAS Collaboration, Phys. Lett. B 718 (2) (2012) 411, arXiv:1209.0753.

    [10] P. Meade, N. Seiberg, D. Shih, Prog. Theor. Phys. Suppl. 177 (2009) 143, http://, arXiv:0801.3278.

  • Related Research Results (2)
  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    Lancaster EPrints - IRUS-UK 0 20
    Universidade do Minho: RepositoriUM 3 0
Share - Bookmark