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Search for a standard model-like Higgs boson in the mu(+)mu(-) and e(+)e(-) decay channels at the LHC

Volker Adler, Kelly Beernaert, Leonardo Benucci, Anna Cimmino, Silvia Costantini, Shannon Rebecca Crucy, Sven Dildick UGent, Alexis Fagot, Guillaume Garcia, Joseph McCartin, et al. (2015) PHYSICS LETTERS B. 744. p.184-207
abstract
A search is presented for a standard model-like Higgs boson decaying to the mu(+)mu(-) or e(+)e(-) final states based on proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 fb(-1) at a centre-of-mass energy of 7 TeV and 19.7 fb(-1) at 8 TeV for the mu(+)mu(-) search, and of 19.7 fb(-1) at 8 TeV for the e(+)e(-) search. Upper limits on the production cross section times branching fraction at the 95% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to mu(+)mu(-), the observed (expected) upper limit on the production rate is found to be 7.4 (6.5(-1.9)(+2.8)) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for e(+)e(-), an upper limit of 0.0019 is placed on the branching fraction, which is approximate to 3.7 x 10(5) times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to tau-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
keyword
ATLAS DETECTOR, COLLISIONS, FUSION, TEV
journal title
PHYSICS LETTERS B
Phys. Lett. B
volume
744
pages
24 pages
publisher
ELSEVIER SCIENCE BV
place of publication
AMSTERDAM
Web of Science type
Article
Web of Science id
000353892000031
JCR category
PHYSICS, NUCLEAR
JCR impact factor
4.787 (2015)
JCR rank
4/21 (2015)
JCR quartile
1 (2015)
ISSN
0370-2693
DOI
10.1016/j.physletb.2015.03.048
language
English
UGent publication?
yes
classification
A1
id
6097279
handle
http://hdl.handle.net/1854/LU-6097279
date created
2015-06-15 11:04:05
date last changed
2017-01-02 09:56:20
@article{6097279,
  abstract     = {A search is presented for a standard model-like Higgs boson decaying to the mu(+)mu(-) or e(+)e(-) final states based on proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 fb(-1) at a centre-of-mass energy of 7 TeV and 19.7 fb(-1) at 8 TeV for the mu(+)mu(-) search, and of 19.7 fb(-1) at 8 TeV for the e(+)e(-) search. Upper limits on the production cross section times branching fraction at the 95\% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to mu(+)mu(-), the observed (expected) upper limit on the production rate is found to be 7.4 (6.5(-1.9)(+2.8)) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for e(+)e(-), an upper limit of 0.0019 is placed on the branching fraction, which is approximate to 3.7 x 10(5) times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to tau-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.},
  author       = {Adler, Volker and Beernaert, Kelly and Benucci, Leonardo and Cimmino, Anna and Costantini, Silvia and Crucy, Shannon Rebecca and Dildick, Sven and Fagot, Alexis and Garcia, Guillaume and McCartin, Joseph and Ocampo Rios, Alberto Andres and Ryckbosch, Dirk and Poyraz, Deniz and Sigamani, Michael and Strobbe, Nadja and Thyssen, Filip and Tytgat, Michael and Yazgan, Efe and Zaganidis, Nikolaos and Basegmez, S and Beluffi, C and Bruno, G and Castello, R and Caudron, A and Ceard, L and Da Silveira, GG and Delaere, C and du Pree, T and Favart, D and Forthomme, L and Giammanco, A and Hollar, J and Jafari, A and Jez, P and Komm, M and Lemaitre, V and Nuttens, C and Pagano, D and Perrini, L and Pin, A and Piotrzkowski, K and Popov, A and Quertenmont, L and Selvaggi, M and Marono, MV and Garcia, JMV and Beliy, N and Caebergs, T and Daubie, E and Hammad, GH and Alda, WL and Alves, GA and Brito, L and Martins, MC and Martins, TD and Herrera, CM and Pol, ME and Carvalho, W and Chinellato, J and Custodio, A and Da Costa, EM and Damiao, DD and Martins, CD and De Souza, SF and Malbouisson, H and Figueiredo, DM and Mundim, L and Nogima, H and Da Silva, WLP and Santaolalla, J and Santoro, A and Sznajder, A and Manganote, EJT and Pereira, AV and Bernardes, CA and Dogra, S and Tomei, TRFP and Gregores, EM and Mercadante, PG and Novaes, SF and Padula, SS and Aleksandrov, A and Genchev, V and Iaydjiev, P and Marinov, A and Piperov, S and Rodozov, M and Stoykova, S and Sultanov, G and Tcholakov, V and Vutova, M and Dimitrov, A and Glushkov, I and Hadjiiska, R and Kozhuharov, V and Litov, L and Pavlov, B and Petkov, P and Bian, JG and Chen, GM and Chen, HS and Chen, M and Du, R and Jiang, CH and Plestina, R and Romeo, F and Tao, J and Wang, Z and Asawatangtrakuldee, C and Ban, Y and Li, Q and Liu, S and Mao, Y and Qian, SJ and Wang, D and Zou, W and Avila, C and Sierra, LFC and Florez, C and Gomez, JP and Moreno, G and Sanabria, JC and Godinovic, N and Lelas, D and Polic, D and Puljak, I and Antunovic, Z and Kovac, M and Brigljevic, V and Kadija, K and Luetic, J and Mekterovic, D and Sudic, L and Attikis, A and Mavromanolakis, G and Mousa, J and Nicolaou, C and Ptochos, F and Razis, PA and Bodlak, M and Finger, M and Finger, M and Assran, Y and Kamel, AE and Mahmoud, MA and Radi, A and Kadastik, M and Murumaa, M and Raidal, M and Tiko, A and Eerola, P and Fedi, G and Voutilainen, M and Harkonen, J and Karimaki, V and Kinnunen, R and Kortelainen, MJ and Lampen, T and Lassila-Perini, K and Lehti, S and Linden, T and Luukka, P and Maenpaa, T and Peltola, T and Tuominen, E and Tuominiemi, J and Tuovinen, E and Wendland, L and Talvitie, J and Tuuva, T and Besancon, M and Couderc, F and Dejardin, M and Denegri, D and Fabbro, B and Faure, JL and Favaro, C and Ferri, F and Ganjour, S and Givernaud, A and Gras, P and de Monchenault, GH and Jarry, P and Locci, E and Malcles, J and Rander, J and Rosowsky, A and Titov, M and Baffioni, S and Beaudette, F and Busson, P and Charlot, C and Dahms, T and Dalchenko, M and Dobrzynski, L and Filipovic, N and Florent, A and de Cassagnac, RG and Mastrolorenzo, L and Mine, P and Mironov, C and Naranjo, IN and Nguyen, M and Ochando, C and Paganini, P and Regnard, S and Salerno, R and Sauvan, JB and Sirois, Y and Veelken, C and Yilmaz, Y and Zabi, A and Agram, JL and Andrea, J and Aubin, A and Bloch, D and Brom, JM and Chabert, EC and Collard, C and Conte, E and Fontaine, JC and Gele, D and Goerlach, U and Goetzmann, C and Le Bihan, AC and Van Hove, P and Gadrat, S and Beauceron, S and Beaupere, N and Boudoul, G and Bouvier, E and Brochet, S and Montoya, CAC and Chasserat, J and Chierici, R and Contardo, D and Depasse, P and El Mamouni, H and Fan, J and Fay, J and Gascon, S and Gouzevitch, M and Ille, B and Kurca, T and Lethuillier, M and Mirabito, L and Perries, S and Alvarez, JDR and Sabes, D and Sgandurra, L and Sordini, V and Donckt, MV and Verdier, P and Viret, S and Xiao, H and Tsamalaidze, Z and 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