<P>A search for compositeness of electrons and muons is presented using a data sample of proton-proton collisions at a center-of-mass energy of root s = 8TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosit...
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https://www.riss.kr/link?id=A107611097
Khachatryan, V. ; Sirunyan, A. M. ; Tumasyan, A. ; Adam, W. ; Asilar, E. ; Bergauer, T. ; Brandstetter, J. ; Brondolin, E. ; Dragicevic, M. ; Erö ; , J. ; Flechl, M. ; Friedl, M. ; Frü ; hwirth, R. ; Ghete, V. M. ; Hartl, C. ; Hö ; rmann, N. ; Hrubec, J. ; Jeitler, M. ; Knü ; nz, V. ; Kö ; nig, A. ; Krammer, M. ; Krä ; tschmer, I. ; Liko, D. ; Matsushita, T. ; Mikulec, I. ; Rabady, D. ; Rahbaran, B. ; Rohringer, H. ; Schieck, J. ; Schö ; fbeck, R. ; Strauss, J. ; Treberer-Treberspurg, W. ; Waltenberger, W. ; Wulz, C.-E. ; Mossolov, V. ; Shumeiko, N. ; Suarez Gonzalez, J. ; Alderweireldt, S. ; Cornelis, T. ; De Wolf, E. A. ; Janssen, X. ; Knutsson, A. ; Lauwers, J. ; Luyckx, S. ; Rougny, R. ; Van De Klundert, M. ; Van Haevermaet, H. ; Van Mechelen, P. ; Van Remortel, N. ; Van Spilbeeck, A. ; Abu Zeid, S. ; Blekman, F. ; D’Hondt, J. ; Daci, N. ; De Bruyn, I. ; Deroover, K. ; Heracleous, N. ; Keaveney, J. ; Lowette, S. ; Moreels, L. ; Olbrechts, A. ; Python, Q. ; Strom, D.
2016
-
SCOPUS
학술저널
125
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>A search for compositeness of electrons and muons is presented using a data sample of proton-proton collisions at a center-of-mass energy of root s = 8TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosit...
<P>A search for compositeness of electrons and muons is presented using a data sample of proton-proton collisions at a center-of-mass energy of root s = 8TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb(-1). Excited leptons (l*) produced via contact interactions in conjunction with a standard model lepton are considered, and a search is made for their gauge decay modes. The decays considered are l* -> l gamma and l* -> lZ , which give final states of two leptons and a photon or, depending on the Z-boson decay mode, four leptons or two leptons and two jets. The number of events observed in data is consistent with the standard model prediction. Exclusion limits are set on the excited lepton mass, and the compositeness scale Lambda. For the case M-l* = Lambda the existence of excited electrons (muons) is excluded up to masses of 2.45 (2.47) TeV at 95% confidence level. Neutral current decays of excited leptons are considered for the first time, and limits are extended to include the possibility that the weight factors f and f', which determine the couplings between standard model leptons and excited leptons via gauge mediated interactions, have opposite sign.</P>
Irregular conformal block, spectral curve and flow equations