Searches for light- and heavy-flavour three-jet resonances in pp collisions at √s=8 TeV

S. Chatrchyan,Vardan Khachatryan,Albert M. Sirunyan,Armen Tumasyan,Wolfgang Adam,Thomas Bergauer,Marko Dragicevic, Janos Erö, C.W. Fabjan, Markus Friedl,R. Frühwirth, Vasile Mihai Ghete, Natascha Hörmann,Josef Hrubec,Manfred Jeitler, W. Kiesenhofer,Valentin Knünz,Manfred Krammer,Ilse Krätschmer,Dietrich Liko, Ivan Mikulec, Dinyar Rabady, Babak Rahbaran, Herbert Rohringer,Robert Schöfbeck, Josef Strauss,Anton Taurok, Wolfgang Treberer-Treberspurg,Wolfgang Waltenberger,Claudia-Elisabeth Wulz, Vladimir Mossolov,Nikolai Shumeiko,J. Suarez Gonzalez,Sara Alderweireldt,M. Bansal,Sunil Bansal,Tom Cornelis,E. A. De Wolf,Xavier Janssen,Albert Knutsson,Sten Luyckx, L. Mucibello, Silvia Ochesanu,Benoit Roland,Romain Rougny, Z. Staykova,H. Van Haevermaet,P. Van Mechelen,N. Van Remortel,A. Van Spilbeeck,Freya Blekman,S. Blyweert, Jorgen D'Hondt,Natalie Heracleous, Alexis Kalogeropoulos,James Keaveney,Steven Lowette,Michaël Maes, Annik Olbrechts,Stefaan Tavernier,W. Van Doninck,P. Van Mulders,G. P. Van Onsem, I. Villella, Cécile Caillol,Barbara Clerbaux,G. De Lentdecker, Laurent Favart,Tomas Hreus,Alexandre Léonard,Pierre Marage, Abdollah Mohammadi,Luca Perniè,Thomas Reis,Tomislav Seva,Laurent Thomas,C. Vander Velde,Pascal Vanlaer, Jing Wang,V. Adler, Kelly Beernaert,Leonardo Benucci,Anna Cimmino,S. Costantini,Sven Dildick,Guillaume Garcia, B. Klein, J. Lellouch, Andrey Marinov, Joseph Mccartin,A. A. Ocampo Rios,Dirk Ryckbosch, Michael Sigamani,Nadja Strobbe, Filip Thyssen,Michael Tytgat, S. Walsh,Efe Yazgan, Nicolas Zaganidis,Suzan Basegmez

user-614d54c3e55422cecdb064d4(2014)

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摘要
A search for three-jet hadronic resonance production in pp collisions at a centre-of-mass energy of 8 TeV has been conducted by the CMS Collaboration at the LHC with a data sample corresponding to an integrated luminosity of 19.4 fb−119.4 fb−1. The search method is model independent, and events are selected that have high jet multiplicity and large values of jet transverse momenta. The signal models explored assume R-parity-violating supersymmetric gluino pair production and have final states with either only light-flavour jets or both light- and heavy-flavour jets. No significant deviation is found between the selected events and the expected standard model multijet and View the MathML sourcett¯ background. For a gluino decaying into light-flavour jets, a lower limit of 650 GeV on the gluino mass is set at a 95% confidence level, and for a gluino decaying into one heavy- and two light-flavour jets, gluino masses between 200 and 835 GeV are, for the first time, likewise excluded.
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