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

• Published in: Physical review letters Vol. 107; no. 18; p. 181801
• Main Authors: 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: Journal Article
• Language: English
• Published: United States American Physical Society 25-10-2011; American Physical Society (APS)
• Subjects: 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; Other particles; Models beyond the standard model; Quarks; Limits on production of particles
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.107.181801

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.