Search for new physics in high pT like-sign dilepton events at CDF II

We present a search for new physics in events with two high pT leptons of the same electric charge, using data with an integrated luminosity of 6.1 fb(-1). The observed data are consistent with standard model predictions. We set 95% C.L. lower limits on the mass of doubly charged scalars decaying to...

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Veröffentlicht in:	Physical review letters 2011-10, Vol.107 (18), p.181801-181801
Hauptverfasser:	Aaltonen, T, Álvarez González, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, J A, Apresyan, A, Arisawa, T, Artikov, A, Asaadi, J, Ashmanskas, W, Auerbach, B, Aurisano, A, Azfar, F, Badgett, W, Barbaro-Galtieri, A, Barnes, V E, Barnett, B A, Barria, P, Bartos, P, Bauce, M, Bauer, G, Bedeschi, F, Beecher, D, Behari, S, Bellettini, G, Bellinger, J, Benjamin, D, Beretvas, A, Bhatti, A, Binkley, M, Bisello, D, Bizjak, I, Bland, K R, Blumenfeld, B, Bocci, A, Bodek, A, Bortoletto, D, Boudreau, J, Boveia, A, Brigliadori, L, Brisuda, A, Bromberg, C, Brucken, E, Bucciantonio, M, Budagov, J, Budd, H S, Budd, S, Burkett, K, Busetto, G, Bussey, P, Buzatu, A, Calancha, C, Camarda, S, Campanelli, M, Campbell, M, Canelli, F, Carls, B, Carlsmith, D, Carosi, R, Carrillo, S, Carron, S, Casal, B, Casarsa, M, Castro, A, Catastini, P, Cauz, D, Cavaliere, V, Cavalli-Sforza, M, Cerri, A, Cerrito, L, Chen, Y C, Chertok, M, Chiarelli, G, Chlachidze, G, Chlebana, F, Cho, K, Chokheli, D, Chou, J P, Chung, W H, Chung, Y S, Ciobanu, C I, Ciocci, M A, Clark, A, Clarke, C, Compostella, G, Convery, M E, Conway, J, Corbo, M, Cordelli, M, Cox, C A, Cox, D J, Crescioli, F, Cuenca Almenar, C, Cuevas, J, Culbertson, R, Dagenhart, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics DECAY ELECTRIC CHARGES Elementary Particles Experiment-HEP High Energy Astrophysical Phenomena High Energy Physics - Experiment LEPTONS LUMINOSITY Models, Theoretical PHYSICS Physics - instrumentation PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SCALARS Sciences of the Universe STANDARD MODEL Uncertainty
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Zusammenfassung:	We present a search for new physics in events with two high pT leptons of the same electric charge, using data with an integrated luminosity of 6.1 fb(-1). The observed data are consistent with standard model predictions. We set 95% C.L. lower limits on the mass of doubly charged scalars decaying to like-sign dileptons, m(H±±) > 190-245 GeV/c(2), assuming 100% BR to ee, μμ or eμ.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.107.181801