1. Measurement of the forward-backward asymmetry in low-mass bottom-quark pairs produced in proton-antiproton collisions
- Author
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Aaltonen, T, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, JA, Arisawa, T, Artikov, A, Asaadi, J, Ashmanskas, W, Auerbach, B, Aurisano, A, Azfar, F, Badgett, W, Bae, T, Barbaro-Galtieri, A, Barnes, VE, Barnett, BA, Barria, P, Bartos, P, Bauce, M, Bedeschi, F, Behari, S, Bellettini, G, Bellinger, J, Benjamin, D, Beretvas, A, Bhatti, A, Bland, KR, Blumenfeld, B, Bocci, A, Bodek, A, Bortoletto, D, Boudreau, J, Boveia, A, Brigliadori, L, Bromberg, C, Brucken, E, Budagov, J, Budd, HS, Burkett, K, Busetto, G, Bussey, P, Butti, P, Buzatu, A, Calamba, A, Camarda, S, Campanelli, M, Canelli, F, Carls, B, Carlsmith, D, Carosi, R, Carrillo, S, Casal, B, Casarsa, M, Castro, A, Catastini, P, Cauz, D, Cavaliere, V, Cerri, A, Cerrito, L, Chen, YC, Chertok, M, Chiarelli, G, Chlachidze, G, Cho, K, Chokheli, D, Clark, A, Clarke, C, Convery, ME, Conway, J, Corbo, M, Cordelli, M, Cox, CA, Cox, DJ, Cremonesi, M, Cruz, D, Cuevas, J, Culbertson, R, d'Ascenzo, N, Datta, M, de Barbaro, P, Demortier, L, Deninno, M, D'Errico, M, Devoto, F, Di Canto, A, Di Ruzza, B, Dittmann, JR, Donati, S, D'Onofrio, M, Dorigo, M, Driutti, A, Ebina, K, Edgar, R, Erbacher, R, Errede, S, Esham, B, Farrington, S, Fernandez Ramos, JP, Field, R, Flanagan, G, Forrest, R, Franklin, M, Freeman, JC, Frisch, H, Funakoshi, Y, Galloni, C, Garfinkel, AF, Garosi, P, Gerberich, H, Gerchtein, E, Giagu, S, Giakoumopoulou, V, Gibson, K, Ginsburg, CM, Giokaris, N, Giromini, P, Glagolev, V, Glenzinski, D, Gold, M, Goldin, D, Golossanov, A, Gomez, G, Gomez-Ceballos, G, Goncharov, M, Gonzalez Lopez, O, Gorelov, I, Goshaw, AT, Goulianos, K, Gramellini, E, Grosso-Pilcher, C, da Costa, J Guimaraes, Hahn, SR, Han, JY, Happacher, F, Hara, K, Hare, M, Harr, RF, Harrington-Taber, T, Hatakeyama, K, Hays, C, Heinrich, J, Herndon, M, Hocker, A, Hong, Z, Hopkins, W, Hou, S, Hughes, RE, Husemann, U, Hussein, M, Huston, J, Introzzi, G, Iori, M, Ivanov, A, James, E, Jang, D, Jayatilaka, B, Jeon, EJ, Jindariani, S, Jones, M, Joo, KK, Jun, SY, Junk, TR, Kambeitz, M, Kamon, T, Karchin, PE, Kasmi, A, Kato, Y, Ketchum, W, Keung, J, Kilminster, B, Kim, DH, Kim, HS, Kim, JE, Kim, MJ, Kim, SH, Kim, SB, Kim, YJ, Kim, YK, Kimura, N, Kirby, M, Kondo, K, Kong, DJ, Konigsberg, J, Kotwal, AV, Kreps, M, Kroll, J, Kruse, M, Kuhr, T, Kurata, M, Laasanen, AT, Lammel, S, Lancaster, M, Lannon, K, Latino, G, Lee, HS, Lee, JS, Leo, S, Leone, S, Lewis, JD, Limosani, A, Lipeles, E, Lister, A, Liu, Q, Liu, T, Lockwitz, S, Loginov, A, Lucchesi, D, Luca, A, Lueck, J, Lujan, P, Lukens, P, Lungu, G, Lys, J, Lysak, R, Madrak, R, Maestro, P, Majersky, O, Malik, S, Manca, G, Manousakis-Katsikakis, A, Marchese, L, Margaroli, F, Marino, P, Matera, K, Mattson, ME, Mazzacane, A, Mazzanti, P, McNulty, R, Mehta, A, Mehtala, P, Mesropian, C, Miao, T, Mietlicki, D, Mitra, A, Miyake, H, Moed, S, Moggi, N, Moon, CS, Moore, R, Morello, MJ, Mukherjee, A, Muller, Th, Murat, P, Mussini, M, Nachtman, J, Nagai, Y, Naganoma, J, Nakano, I, Napier, A, Nett, J, Nigmanov, T, Nodulman, L, Noh, SY, Norniella, O, Oakes, L, Oh, SH, Oh, YD, Okusawa, T, Orava, R, Ortolan, L, Pagliarone, C, Palencia, E, Palni, P, Papadimitriou, V, Parker, W, Pauletta, G, Paulini, M, Paus, C, Phillips, TJ, Piacentino, G, Pianori, E, Pilot, J, Pitts, K, Plager, C, Pondrom, L, Poprocki, S, Potamianos, K, Pranko, A, Prokoshin, F, Ptohos, F, Punzi, G, Redondo Fernandez, I, Renton, P, Rescigno, M, Rimondi, F, Ristori, L, Robson, A, Rodriguez, T, Rolli, S, Ronzani, M, Roser, R, Rosner, JL, Ruffini, F, Ruiz, A, Russ, J, Rusu, V, Sakumoto, WK, Sakurai, Y, Santi, L, Sato, K, Saveliev, V, Savoy-Navarro, A, Schlabach, P, Schmidt, EE, Schwarz, T, Scodellaro, L, Scuri, F, Seidel, S, Seiya, Y, Semenov, A, Sforza, F, Shalhout, SZ, Shears, T, Shepard, PF, Shimojima, M, Shochet, M, Shreyber-Tecker, I, Simonenko, A, Sliwa, K, Smith, JR, Snider, FD, Song, H, Sorin, V, Denis, R St, Stancari, M, Stentz, D, Strologas, J, Sudo, Y, Sukhanov, A, Suslov, I, Takemasa, K, Takeuchi, Y, Tang, J, Tecchio, M, Teng, PK, Thom, J, Thomson, E, Thukral, V, Toback, D, Tokar, S, Tollefson, K, Tomura, T, Tonelli, D, Torre, S, Torretta, D, Totaro, P, Trovato, M, Ukegawa, F, Uozumi, S, Vazquez, F, Velev, G, Vellidis, C, Vernieri, C, Vidal, M, Vilar, R, Vizan, J, Vogel, M, Volpi, G, Wagner, P, Wallny, R, Wang, SM, Waters, D, III, Wester WC, Whiteson, D, Wicklund, AB, Wilbur, S, Williams, HH, Wilson, JS, Wilson, P, Winer, BL, Wittich, P, Wolbers, S, Wolfe, H, Wright, T, Wu, X, Wu, Z, Yamamoto, K, Yamato, D, Yang, T, Yang, UK, Yang, YC, Yao, W-M, Yeh, GP, Yi, K, Yoh, J, Yorita, K, Yoshida, T, Yu, GB, Yu, I, Zanetti, AM, Zeng, Y, Zhou, C, Zucchelli, S, Collaboration, CDF, Slovak Research and Development Agency, Ministerio de Ciencia e Innovación (España), Department of Energy (US), National Science Foundation (US), Istituto Nazionale di Fisica Nucleare, Ministry of Education, Culture, Sports, Science and Technology (Japan), Natural Sciences and Engineering Research Council of Canada, Alfred P. Sloan Foundation, Federal Ministry of Education and Research (Germany), National Research Foundation of Korea, Science and Technology Facilities Council (UK), Russian Foundation for Basic Research, Academy of Finland, European Commission, Australian Research Council, Swiss National Science Foundation, Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J. A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Bae, T., Barbaro Galtieri, A., Barnes, V. E., Barnett, B. A., Barria, P., Bartos, P., Bauce, M., Bedeschi, F., Behari, S., Bellettini, G., Bellinger, J., Benjamin, D., Beretvas, A., Bhatti, A., Bland, K. R., Blumenfeld, B., Bocci, A., Bodek, A., Bortoletto, D., Boudreau, J., Boveia, A., Brigliadori, L., Bromberg, C., Brucken, E., Budagov, J., Budd, H. S., Burkett, K., Busetto, G., Bussey, P., Butti, P., Buzatu, A., Calamba, A., Camarda, S., Campanelli, M., Canelli, F., Carls, B., Carlsmith, D., Carosi, R., Carrillo, S., Casal, B., Casarsa, M., Castro, A., Catastini, P., Cauz, D., Cavaliere, V., Cerri, A., Cerrito, L., Chen, Y. C., Chertok, M., Chiarelli, G., Chlachidze, G., Cho, K., Chokheli, D., Clark, A., Clarke, C., Convery, M. E., Conway, J., Corbo, M., Cordelli, M., Cox, C. A., Cox, D. J., Cremonesi, M., Cruz, D., Cuevas, J., Culbertson, R., D'Ascenzo, N., Datta, M., de Barbaro, P., Demortier, L., Deninno, M., D'Errico, M., Devoto, F., Di Canto, A., Di Ruzza, B., Dittmann, J. R., Donati, S., D'Onofrio, M., Dorigo, M., Driutti, A., Ebina, K., Edgar, R., Erbacher, R., Errede, S., Esham, B., Farrington, S., Fernandez Ramos, J. P., Field, R., Flanagan, G., Forrest, R., Franklin, M., Freeman, J. C., Frisch, H., Funakoshi, Y., Galloni, C., Garfinkel, A. F., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Gibson, K., Ginsburg, C. M., Giokaris, N., Giromini, P., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Golossanov, A., Gomez, G., Gomez Ceballos, G., Goncharov, M., Gonzalez Lopez, O., Gorelov, I., Goshaw, A. T., Goulianos, K., Gramellini, E., Grosso Pilcher, C., da Costa, J. Guimarae, Hahn, S. R., Han, J. Y., Happacher, F., Hara, K., Hare, M., Harr, R. F., Harrington Taber, T., Hatakeyama, K., Hays, C., Heinrich, J., Herndon, M., Hocker, A., Hong, Z., Hopkins, W., Hou, S., Hughes, R. E., Husemann, U., Hussein, M., Huston, J., Introzzi, G., Iori, M., Ivanov, A., James, E., Jang, D., Jayatilaka, B., Jeon, E. J., Jindariani, S., Jones, M., Joo, K. K., Jun, S. Y., Junk, T. R., Kambeitz, M., Kamon, T., Karchin, P. E., Kasmi, A., Kato, Y., Ketchum, W., Keung, J., Kilminster, B., Kim, D. H., Kim, H. S., Kim, J. E., Kim, M. J., Kim, S. H., Kim, S. B., Kim, Y. J., Kim, Y. K., Kimura, N., Kirby, M., Kondo, K., Kong, D. J., Konigsberg, J., Kotwal, A. V., Kreps, M., Kroll, J., Kruse, M., Kuhr, T., Kurata, M., Laasanen, A. T., Lammel, S., Lancaster, M., Lannon, K., Latino, G., Lee, H. S., Lee, J. S., Leo, S., Leone, S., Lewis, J. D., Limosani, A., Lipeles, E., Lister, A., Liu, Q., Liu, T., Lockwitz, S., Loginov, A., Lucchesi, D., Luca, A., Lueck, J., Lujan, P., Lukens, P., Lungu, G., Lys, J., Lysak, R., Madrak, R., Maestro, P., Majersky, O., Malik, S., Manca, G., Manousakis Katsikakis, A., Marchese, L., Margaroli, F., Marino, Pietro, Matera, K., Mattson, M. E., Mazzacane, A., Mazzanti, P., Mcnulty, R., Mehta, A., Mehtala, P., Mesropian, C., Miao, T., Mietlicki, D., Mitra, A., Miyake, H., Moed, S., Moggi, N., Moon, C. S., Moore, R., Morello, MICHAEL JOSEPH, Mukherjee, A., Muller, T. h., Murat, P., Mussini, M., Nachtman, J., Nagai, Y., Naganoma, J., Nakano, I., Napier, A., Nett, J., Nigmanov, T., Nodulman, L., Noh, S. Y., Norniella, O., Oakes, L., Oh, S. H., Oh, Y. D., Okusawa, T., Orava, R., Ortolan, L., Pagliarone, C., Palencia, E., Palni, P., Papadimitriou, V., Parker, W., Pauletta, G., Paulini, M., Paus, C., Phillips, T. J., Piacentino, G., Pianori, E., Pilot, J., Pitts, K., Plager, C., Pondrom, L., Poprocki, S., Potamianos, K., Pranko, A., Prokoshin, F., Ptohos, F., Punzi, G., Redondo Fernandez, I., Renton, P., Rescigno, M., Rimondi, F., Ristori, L., Robson, A., Rodriguez, T., Rolli, S., Ronzani, M., Roser, R., Rosner, J. L., Ruffini, F., Ruiz, A., Russ, J., Rusu, V., Sakumoto, W. K., Sakurai, Y., Santi, L., Sato, K., Saveliev, V., Savoy Navarro, A., Schlabach, P., Schmidt, E. E., Schwarz, T., Scodellaro, L., Scuri, F., Seidel, S., Seiya, Y., Semenov, A., Sforza, F., Shalhout, S. Z., Shears, T., Shepard, P. F., Shimojima, M., Shochet, M., Shreyber Tecker, I., Simonenko, A., Sliwa, K., Smith, J. R., Snider, F. D., Song, H., Sorin, V., Denis, R. S. t., Stancari, M., Stentz, D., Strologas, J., Sudo, Y., Sukhanov, A., Suslov, I., Takemasa, K., Takeuchi, Y., Tang, J., Tecchio, M., Teng, P. K., Thom, J., Thomson, E., Thukral, V., Toback, D., Tokar, S., Tollefson, K., Tomura, T., Tonelli, D., Torre, S., Torretta, D., Totaro, P., Trovato, M., Ukegawa, F., Uozumi, S., Vazquez, F., Velev, G., Vellidis, C., Vernieri, C., Vidal, M., Vilar, R., Vizan, J., Vogel, M., Volpi, G., Wagner, P., Wallny, R., Wang, S. M., Waters, D., Wester, W. C., Whiteson, D., Wicklund, A. B., Wilbur, S., Williams, H. H., Wilson, J. S., Wilson, P., Winer, B. L., Wittich, P., Wolbers, S., Wolfe, H., Wright, T., Wu, X., Wu, Z., Yamamoto, K., Yamato, D., Yang, T., Yang, U. K., Yang, Y. C., Yao, W. M., Yeh, G. P., Yi, K., Yoh, J., Yorita, K., Yoshida, T., Yu, G. B., Yu, I., Zanetti, A. M., Zeng, Y., Zhou, C., Zucchelli, S., Department of Physics, Helsinki Institute of Physics, Appel, J.A., Barbaro-Galtieri, A., Barnes, V.E., Barnett, B.A., Bland, K.R., Budd, H.S., Chen, Y.C., Convery, M.E., Cox, C.A., Cox, D.J., De Barbaro, P., Dittmann, J.R., Fernández Ramos, J.P., Freeman, J.C., Garfinkel, A.F., Ginsburg, C.M., Gomez-Ceballos, G., González López, O., Goshaw, A.T., Grosso-Pilcher, C., Guimaraes Da Costa, J., Hahn, S.R., Han, J.Y., Harr, R.F., Harrington-Taber, T., Hughes, R.E., Jeon, E.J., Joo, K.K., Jun, S.Y., Junk, T.R., Karchin, P.E., Kim, D.H., Kim, H.S., Kim, J.E., Kim, M.J., Kim, S.H., Kim, S.B., Kim, Y.J., Kim, Y.K., Kong, D.J., Kotwal, A.V., Laasanen, A.T., Lee, H.S., Lee, J.S., Lewis, J.D., Lucà, A., Manousakis-Katsikakis, A., Marino, P., Mattson, M.E., Moon, C.S., Morello, M.J., Muller, Th., Noh, S.Y., Oh, S.H., Oh, Y.D., Phillips, T.J., Redondo Fernández, I., Rosner, J.L., Sakumoto, W.K., Savoy-Navarro, A., Schmidt, E.E., Shalhout, S.Z., Shepard, P.F., Shreyber-Tecker, I., Smith, J.R., Snider, F.D., St Denis, R., Teng, P.K., Vázquez, F., Vizán, J., Wang, S.M., Wester, W.C., Wicklund, A.B., Williams, H.H., Wilson, J.S., Winer, B.L., Yang, U.K., Yang, Y.C., Yao, W.-M., Yeh, G.P., Yu, G.B., and Zanetti, A.M.
- Subjects
Particle physics ,Nuclear and High Energy Physics ,Forward-backward asymmetry ,pairs production ,proton-antiproton collisions ,Proton ,media_common.quotation_subject ,FOS: Physical sciences ,CHARGE ASYMMETRY ,ROOT-S=8 TEV ,DETECTOR ,114 Physical sciences ,01 natural sciences ,Bottom quark ,Asymmetry ,Cosmology ,High Energy Physics - Experiment ,Nuclear physics ,Gravitation ,High Energy Physics - Experiment (hep-ex) ,0103 physical sciences ,Nuclear Experiment ,010306 general physics ,anti-p p: colliding beams | angular distribution: asymmetry: measured | anti-p p: scattering | B: semileptonic decay | bottom: pair production | mass spectrum: (bottom anti-bottom) | mass dependence | CDF | Batavia TEVATRON Coll | experimental results | 1960 GeV-cms ,media_common ,Physics ,010308 nuclear & particles physics ,Detector ,High Energy Physics::Phenomenology ,Antiproton ,High Energy Physics::Experiment ,Low Mass - Abstract
et al., We report a measurement of the forward-backward asymmetry, AFB, in bb¯ pairs produced in proton-antiproton collisions and identified by muons from semileptonic b-hadron decays. The event sample is collected at a center-of-mass energy of √s=1.96 TeV with the CDF II detector and corresponds to 6.9 fb−1 of integrated luminosity. We obtain an integrated asymmetry of AFB(bb¯)=(1.2±0.7)% at the particle level for b-quark pairs with invariant mass, mbb¯, down to 40 GeV/c2 and measure the dependence of AFB(bb¯) on mbb¯. The results are compatible with expectations from the standard model., This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; the Australian Research Council (ARC); and the EU community Marie Curie Fellowship Contract No. 302103.
- Published
- 2016