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Search for new particles leading to Z+jets final states in pp¯ collisions at s=1.96 TeV

Aaltonen, T. et al. (2007) Search for new particles leading to Z+jets final states in pp¯ collisions at s=1.96 TeV. Physical Review D, 76 (7). ISSN 1550-7998 (doi:10.1103/PhysRevD.76.072006)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevD.76.072006

Abstract

We present the results of a search for new particles that lead to a Z boson plus jets in pp̅ collisions at √s=1.96  TeV using the Collider Detector at Fermilab (CDF II). A data sample with a luminosity of 1.06  fb-1 collected using Z boson decays to ee and μμ is used. We describe a completely data-based method to predict the dominant background from standard model Z+jet events. This method can be similarly applied to other analyses requiring background predictions in multijet environments, as shown when validating the method by predicting the background from W+jets in tt̅ production. No significant excess above the background prediction is observed, and a limit is set using a fourth generation quark model to quantify the acceptance. Assuming BR(b′→bZ)=100% and using a leading-order calculation of the b′ cross section, b′ quark masses below 268  GeV/c2 are excluded at 95% confidence level.

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., Carrillo, 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., 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