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Searches for direct pair production of supersymmetric top and supersymmetric bottom quarks in pp¯ collisions at s=1.96 TeV

Aaltonen, T. et al. (2007) Searches for direct pair production of supersymmetric top and supersymmetric bottom quarks in pp¯ collisions at s=1.96 TeV. Physical Review D, 76 (7). ISSN 1550-7998 (doi:10.1103/PhysRevD.76.072010)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevD.76.072010

Abstract

We search for direct pair production of supersymmetric top quarks and supersymmetric bottom quarks in proton-antiproton collisions at √s=1.96  TeV, using 295  pb-1 of data recorded by the Collider Detector at Fermilab (CDF II) experiment. The supersymmetric top (supersymmetric bottom) quarks are selected by reconstructing their decay into a charm (bottom) quark and a neutralino, which is assumed to be the lightest supersymmetric particle. The signature of such processes is two energetic heavy-flavor jets and missing transverse energy. The number of events that pass our selection for each search process is consistent with the expected standard model background. By comparing our results to the theoretical production cross sections of the supersymmetric top and supersymmetric bottom quarks in the minimal supersymmetric standard model, we exclude, at a 95% confidence level in the frame of that model, a supersymmetric top quark mass up to 132  GeV/c2 for a neutralino mass of 48  GeV/c2, and a supersymmetric bottom quark mass up to 193  GeV/c2 for a neutralino mass of 40  GeV/c2.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Robson, Dr Aidan and St Denis, Dr Richard and Bussey, Dr Peter
Authors: Aaltonen, T., Abulencia, A., Adelman, J., Affolder, T., Akimoto, T., Albrow, M., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., Aurisano, A., Azfar, F., Azzi-Bacchetta, P., Azzurri, P., Bacchetta, N., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Baroiant, S., Bartsch, V., Bauer, G., Beauchemin, P.-H., Bedeschi, F., Behari, S., Bellettini, G., Bellinger, J., Belloni, A., Benjamin, D., Beretvas, A., Beringer, J., Berry, T., Bhatti, A., Binkley, M., Bisello, D., Bizjak, I., Blair, R., Blocker, C., Blumenfeld, B., Bocci, A., Bodek, A., Boisvert, V., Bolla, G., Bolshov, A., Bortoletto, D., Boudreau, J., Boveia, A., Brau, B., Brigliadori, L., Bromberg, C., Brubaker, E., Budagov, J., Budd, H., Budd, S., Burkett, K., Busetto, G., Bussey, P., Buzatu, A., Byrum, K., Cabrera, S., Campanelli, M., Campbell, M., Canelli, F., Canepa, A., Carillo, S., Carlsmith, D., Carosi, R., Carron, S., Casal, B., Casarsa, M., Castro, A., Catastini, P., Cauz, D., Cavalli-Sforza, M., Cerri, A., Cerrito, L., Chang, S., Chen, Y., Chertok, M., Chiarelli, G., Chlachidze, G., Chlebana, F., Cho, I., Cho, K., Chokheli, D., Chou, J., Choudalakis, G., Chuang, S., Chung, K., Chung, W., Chung, Y., Cilijak, M., Ciobanu, C., Ciocci, M., Clark, A., Clark, D., Coca, M., Compostella, G., Convery, M., Conway, J., Cooper, B., Copic, K., Cordelli, M., Cortiana, G., Crescioli, F., Cuenca Almenar, C., Cuevas, J., Culbertson, R., Cully, J., DaRonco, S., Datta, M., D’Auria, S., Davies, T., Dagenhart, D., de Barbaro, P., De Cecco, S., Deisher, A., De Lentdecker, G., De Lorenzo, G., Dell’Orso, M., Delli Paoli, F., Demortier, L., Deng, J., Deninno, M., De Pedis, D., Derwent, P., Di Giovanni, G., Dionisi, C., Di Ruzza, B., Dittmann, J., D’Onofrio, M., Dörr, C., Donati, S., Dong, P., Donini, J., Dorigo, T., Dube, S., Efron, J., Erbacher, R., Errede, D., Errede, S., Eusebi, R., Fang, H., Farrington, S., Fedorko, I., Fedorko, W., Feild, R., Feindt, M., Fernandez, J., Field, R., Flanagan, G., Forrest, R., Forrester, S., Franklin, M., Freeman, J., Furic, I., Gallinaro, M., Galyardt, J., Garcia, J., Garberson, F., Garfinkel, A., Gay, C., Gerberich, H., Gerdes, D., Giagu, S., Giannetti, P., Gibson, K., Gimmell, J., Ginsburg, C., Giokaris, N., Giordani, M., Giromini, P., Giunta, M., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldschmidt, N., Goldstein, J., Golossanov, A., Gomez, G., Gomez-Ceballos, G., Goncharov, M., González, O., Gorelov, I., Goshaw, A., Goulianos, K., Gresele, A., Grinstein, S., Grosso-Pilcher, C., Group, R., Grundler, U., Guimaraes da Costa, J., Gunay-Unalan, Z., Haber, C., Hahn, K., Hahn, S., Halkiadakis, E., Hamilton, A., Han, B.-Y., Han, J., Handler, R., Happacher, F., Hara, K., Hare, D., Hare, M., Harper, S., Harr, R., Harris, R., Hartz, M., Hatakeyama, K., Hauser, J., Hays, C., Heck, M., Heijboer, A., Heinemann, B., Heinrich, J., Henderson, C., Herndon, M., Heuser, J., Hidas, D., Hill, C., Hirschbuehl, D., Hocker, A., Holloway, A., Hou, S., Houlden, M., Hsu, S.-C., Huffman, B., Hughes, R., Husemann, U., Huston, J., Incandela, J., Introzzi, G., Iori, M., Ivanov, A., Iyutin, B., James, E., Jang, D., Jayatilaka, B., Jeans, D., Jeon, E., Jindariani, S., Johnson, W., Jones, M., Joo, K., Jun, S., Jung, J., Junk, T., Kamon, T., Karchin, P., Kato, Y., Kemp, Y., Kephart, R., Kerzel, U., Khotilovich, V., Kilminster, B., Kim, D., Kim, H., Kim, J., Kim, M., Kim, S., Kim, S., Kim, Y., Kimura, N., Kirsch, L., Klimenko, S., Klute, M., Knuteson, B., Ko, B., Kondo, K., Kong, D., Konigsberg, J., Korytov, A., Kotwal, A., Kraan, A., Kraus, J., Kreps, M., Kroll, J., Krumnack, N., Kruse, M., Krutelyov, V., Kubo, T., Kuhlmann, S., Kuhr, T., Kulkarni, N., Kusakabe, Y., Kwang, S., Laasanen, A., Lai, S., Lami, S., Lammel, S., Lancaster, M., Lander, R., Lannon, K., Lath, A., Latino, G., Lazzizzera, I., LeCompte, T., Lee, J., Lee, J., Lee, Y., Lee, S., Lefèvre, R., Leonardo, N., Leone, S., Levy, S., Lewis, J., Lin, C., Lin, C., Lindgren, M., Lipeles, E., Lister, A., Litvintsev, D., Liu, T., Lockyer, N., Loginov, A., Loreti, M., Lu, R.-S., Lucchesi, D., Lujan, P., Lukens, P., Lungu, G., Lyons, L., Lys, J., Lysak, R., Lytken, E., Mack, P., MacQueen, D., Madrak, R., Maeshima, K., Makhoul, K., Maki, T., Maksimovic, P., Malde, S., Malik, S., Manca, G., Manousakis, A., Margaroli, F., Marginean, R., Marino, C., Marino, C., Martin, A., Martin, M., Martin, V., Martínez, M., Martínez-Ballarín, R., Maruyama, T., Mastrandrea, P., Masubuchi, T., Matsunaga, H., Mattson, M., Mazini, R., Mazzanti, P., McFarland, K., McIntyre, P., McNulty, R., Mehta, A., Mehtala, P., Menzemer, S., Menzione, A., Merkel, P., Mesropian, C., Messina, A., Miao, T., Miladinovic, N., Miles, J., Miller, R., Mills, C., Milnik, M., Mitra, A., Mitselmakher, G., Miyamoto, A., Moed, S., Moggi, N., Mohr, B., Moon, C., Moore, R., Morello, M., Movilla Fernandez, P., Mülmenstädt, J., Mukherjee, A., Muller, Th., Mumford, R., Murat, P., Mussini, M., Nachtman, J., Nagano, A., Naganoma, J., Nakamura, K., Nakano, I., Napier, A., Necula, V., Neu, C., Neubauer, M., Nielsen, J., Nodulman, L., Norniella, O., Nurse, E., Oh, S., Oh, Y., Oksuzian, I., Okusawa, T., Oldeman, R., Orava, R., Osterberg, K., Pagliarone, C., Palencia, E., Papadimitriou, V., Papaikonomou, A., Paramonov, A., Parks, B., Pashapour, S., Patrick, J., Pauletta, G., Paulini, M., Paus, C., Pellett, D., Penzo, A., Phillips, T., Piacentino, G., Piedra, J., Pinera, L., Pitts, K., Plager, C., Pondrom, L., Portell, X., Poukhov, O., Pounder, N., Prakoshyn, F., Pronko, A., Proudfoot, J., Ptohos, F., Punzi, G., Pursley, J., Rademacker, J., Rahaman, A., Ramakrishnan, V., Ranjan, N., Redondo, I., Reisert, B., Rekovic, V., Renton, P., Rescigno, M., Richter, S., Rimondi, F., Ristori, L., Robson, A., Rodrigo, T., Rogers, E., Rolli, S., Roser, R., Rossi, M., Rossin, R., Roy, P., Ruiz, A., Russ, J., Rusu, V., Saarikko, H., Safonov, A., Sakumoto, W., Salamanna, G., Saltó, O., Santi, L., Sarkar, S., Sartori, L., Sato, K., Savard, P., Savoy-Navarro, A., Scheidle, T., Schlabach, P., Schmidt, E., Schmidt, M., Schmitt, M., Schwarz, T., Scodellaro, L., Scott, A., Scribano, A., Scuri, F., Sedov, A., Seidel, S., Seiya, Y., Semenov, A., Sexton-Kennedy, L., Sfyrla, A., Shalhout, S., Shapiro, M., Shears, T., Shepard, P., Sherman, D., Shimojima, M., Shochet, M., Shon, Y., Shreyber, I., Sidoti, A., Sinervo, P., Sisakyan, A., Slaughter, A., Slaunwhite, J., Sliwa, K., Smith, J., Snider, F., Snihur, R., Soderberg, M., Soha, A., Somalwar, S., Sorin, V., Spalding, J., Spinella, F., Spreitzer, T., Squillacioti, P., Stanitzki, M., Staveris-Polykalas, A., St Denis, R., Stelzer, B., Stelzer-Chilton, O., Stentz, D., Strologas, J., Stuart, D., Suh, J., Sukhanov, A., Sun, H., Suslov, I., Suzuki, T., Taffard, A., Takashima, R., Takeuchi, Y., Tanaka, R., Tecchio, M., Teng, P., Terashi, K., Thom, J., Thompson, A., Thomson, E., Tipton, P., Tiwari, V., Tkaczyk, S., Toback, D., Tokar, S., Tollefson, K., Tomura, T., Tonelli, D., Torre, S., Torretta, D., Tourneur, S., Trischuk, W., Tsuno, S., Tu, Y., Turini, N., Ukegawa, F., Uozumi, S., Vallecorsa, S., van Remortel, N., Varganov, A., Vataga, E., Vazquez, F., Velev, G., Vellidis, C., Veramendi, G., Veszpremi, V., Vidal, M., Vidal, R., Vila, I., Vilar, R., Vine, T., Vogel, M., Vollrath, I., Volobouev, I., Volpi, G., Würthwein, F., Wagner, P., Wagner, R., Wagner, R., Wagner, J., Wagner, W., Wallny, R., Wang, S., Warburton, A., Waters, D., Weinberger, M., Wester, W., Whitehouse, B., Whiteson, D., Wicklund, A., Wicklund, E., Williams, G., Williams, H., Wilson, P., Winer, B., Wittich, P., Wolbers, S., Wolfe, C., Wright, T., Wu, X., Wynne, S., Yagil, A., Yamamoto, K., Yamaoka, J., Yamashita, T., Yang, C., Yang, U., Yang, Y., Yao, W., Yeh, G., Yoh, J., Yorita, K., Yoshida, T., Yu, G., Yu, I., Yu, S., Yun, J., Zanello, L., Zanetti, A., Zaw, I., Zhang, X., Zhou, J., and Zucchelli, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:1550-7998
ISSN (Online):1089-4918

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
395963Experimental Particle PhysicsAnthony DoyleScience & Technologies Facilities Council (STFC)ST/H001077/1Physics and Astronomy