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Search for contact interactions in μ+μ- events in pp collisions at √s=7 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 87:3 (2013)

Authors:

S Chatrchyan, V Khachatryan, AM Sirunyan, A Tumasyan, W Adam, E Aguilo, T Bergauer, M Dragicevic, J Erö, C Fabjan, M Friedl, R Frühwirth, VM Ghete, J Hammer, N Hörmann, J Hrubec, M Jeitler, W Kiesenhofer, V Knünz, M Krammer, I Krätschmer, D Liko, I Mikulec, M Pernicka, B Rahbaran, C Rohringer, H Rohringer, R Schöfbeck, J Strauss, A Taurok, W Waltenberger, G Walzel, E Widl, CE Wulz, V Mossolov, N Shumeiko, J Suarez Gonzalez, M Bansal, S Bansal, T Cornelis, EA De Wolf, X Janssen, S Luyckx, L Mucibello, S Ochesanu, B Roland, R Rougny, M Selvaggi, Z Staykova, H Van Haevermaet, P Van Mechelen, N Van Remortel, A Van Spilbeeck, F Blekman, S Blyweert, J D'Hondt, R Gonzalez Suarez, A Kalogeropoulos, M Maes, A Olbrechts, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, B Clerbaux, G De Lentdecker, V Dero, APR Gay, T Hreus, A Léonard, PE Marage, A Mohammadi, T Reis, L Thomas, G Vander Marcken, C Vander Velde, P Vanlaer, J Wang, V Adler, K Beernaert, A Cimmino, S Costantini, G Garcia, M Grunewald, B Klein, J Lellouch, A Marinov, J McCartin, AA Ocampo Rios, D Ryckbosch, N Strobbe, F Thyssen, M Tytgat, P Verwilligen, S Walsh, E Yazgan, N Zaganidis, S Basegmez, G Bruno, R Castello

Abstract:

Results are reported from a search for the effects of contact interactions using events with a high-mass, oppositely charged muon pair. The events are collected in proton-proton collisions at √s=7 TeV using the Compact Muon Solenoid detector at the Large Hadron Collider. The data sample corresponds to an integrated luminosity of 5.3 fb-1. The observed dimuon mass spectrum is consistent with that expected from the standard model. The data are interpreted in the context of a quark- and muon-compositeness model with a left-handed isoscalar current and an energy scale parameter Λ. The 95% confidence level lower limit on Λ is 9.5 TeV under the assumption of destructive interference between the standard model and contact-interaction amplitudes. For constructive interference, the limit is 13.1 TeV. These limits are comparable to the most stringent ones reported to date. © 2013 CERN. Published by the American Physical Society.
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Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO

(2013)

Authors:

JR Maund, M Fraser, SJ Smartt, MT Botticella, C Barbarino, M Childress, A Gal-Yam, C Inserra, G Pignata, D Reichart, B Schmidt, J Sollerman, F Taddia, L Tomasella, S Valenti, O Yaron
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THE HOST GALAXY OF THE SUPER-LUMINOUS SN 2010gx AND LIMITS ON EXPLOSIVE 56Ni PRODUCTION

The Astrophysical Journal Letters American Astronomical Society 763:2 (2013) l28

Authors:

Ting-Wan Chen, Stephen J Smartt, Fabio Bresolin, Andrea Pastorello, Rolf-Peter Kudritzki, Rubina Kotak, Matt McCrum, Morgan Fraser, Stefano Valenti
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The Herschel★ view of the environment of the radio galaxy 4C+41.17 at z = 3.8

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 428:4 (2013) 3206-3219

Authors:

D Wylezalek, J Vernet, C De Breuck, D Stern, A Galametz, N Seymour, M Jarvis, P Barthel, G Drouart, TR Greve, M Haas, N Hatch, R Ivison, M Lehnert, K Meisenheimer, G Miley, N Nesvadba, HJA Röttgering, JA Stevens
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PS1-10afx at z=1.388: Pan-STARRS1 Discovery of a New Type of Superluminous Supernova

(2013)

Authors:

Ryan Chornock, E Berger, A Rest, D Milisavljevic, R Lunnan, RJ Foley, AM Soderberg, SJ Smartt, AJ Burgasser, P Challis, L Chomiuk, I Czekala, M Drout, W Fong, ME Huber, RP Kirshner, C Leibler, B McLeod, GH Marion, G Narayan, AG Riess, KC Roth, NE Sanders, D Scolnic, K Smith, CW Stubbs, JL Tonry, S Valenti, WS Burgett, KC Chambers, KW Hodapp, N Kaiser, R-P Kudritzki, EA Magnier, PA Price
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