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A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in root s=8 TeV proton-proton collisions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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Number of Authors: 2829
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 6, 067Article in journal (Refereed) Published
Abstract [en]

A search for the pair production of top squarks, each with R-parity-violating decays into two Standard Model quarks, is performed using 17.4 fb(-1) of root s = 8 TeV proton-proton collision data recorded by the ATLAS experiment at the LITC. Each top squark is assumed to decay to a b- and an 8-quark, leading to four quarks in the final state. Background discrimination is achieved with the use of b-tagging and selections on the mass and substructure of large-radius jets, providing sensitivity to top squark masses as low as 100 GeV. No evidence of an excess beyond the Standard Model background prediction is observed and top squalls decaying to bs are excluded for top squark masses in the range 100 <= m((t) over tilde) <= 315 GeV at 95% confidence level.

Place, publisher, year, edition, pages
2016. Vol. 6, 067
Keyword [en]
Hadron-Hadron scattering (experiments)
National Category
Subatomic Physics
URN: urn:nbn:se:uu:diva-299762DOI: 10.1007/JEHP06(2016)067ISI: 000377999700001OAI: oai:DiVA.org:uu-299762DiVA: diva2:950049

ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1007/JEHP06(2016)067

Funding: We acknowledge the support of ANPCyT, Argentina: YerPhI, Armenia; ARC, Australia; BMWFW and FIVE 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 and DNSRC. Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF. Georgia: BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN. Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO. Netherlands; RCN, Norway; MNiSW and NCN. Poland; FCT, Portugal; NINE/IFA. Romania; NIES of Russia and NRC KI, Russian Federation: JINR: MESTD, Serbia; NISSR, Slovakia; ARRS and MIZS, Slovenia: DST/NRF. South Africa; MINECO, Spain; SRC and Wallenberg Foundation. Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan: TAEK, Turkey; STFC, United Kingdom: DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT. and the Ontario Innovation Trust, Canada: EPLANET, ERC, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions. European Union; Investissements d'Avenir Labex and Idex, ANR, Region Auvergne and Fondation Partager le Savoir, France: DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co financed by EU-ESF and the Greek NSRF BSF, GIF and Minerva, Israel: BRF, Norway; Generalitat de Catalunya, Generalitat Valenciana. Spain; the Royal Society and Leverhulme Trust, United Kingdom.

Available from: 2016-07-27 Created: 2016-07-27 Last updated: 2016-07-27Bibliographically approved

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Bergeås, Elin KuutmannBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P. O. JoakimIsaksson, CharlieMadsen, AlexanderÖhman, HenrikPelikan, DanielRangel-Smith, Camilla
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