Observation of the production of a W soson in association with a single charm quark

Aaltonen, T. et al. (2013) Observation of the production of a W soson in association with a single charm quark. Physical Review Letters, 110(7), 071801. (doi:10.1103/PhysRevLett.110.071801)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.110.071801

Abstract

The first observation of the production of a W boson with a single charm quark (c) jet in pp¯ collisions at s√=1.96  TeV is reported. The analysis uses data corresponding to 4.3  fb−1, recorded with the CDF II detector at the Fermilab Tevatron. Charm quark candidates are selected through the identification of an electron or muon from charm-hadron semileptonic decay within a hadronic jet, and a Wc signal is observed with a significance of 5.7 standard deviations. The production cross section σWc(pTc>20  GeV/c,|ηc|<1.5)×B(W→ℓν) is measured to be 13.6+3.4−3.1  pb and is in agreement with theoretical expectations. From this result the magnitude of the quark-mixing matrix element Vcs is derived, |Vcs|=1.08±0.16 along with a lower limit of |Vcs|>0.71 at the 95% confidence level, assuming that the Wc production through c to s quark coupling is dominant.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Robson, Professor Aidan and Buzatu, Dr Adrian and Bussey, Dr Peter and St Denis, Dr Richard
Authors: Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Bae, T., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Barria, P., Bartos, P., Bauce, M., Bedeschi, F., Behari, S., Bellettini, G., Bellinger, J., Benjamin, D., Beretvas, A., Bhatti, A., Bland, K., Blumenfeld, B., Bocci, A., Bodek, A., Bortoletto, D., Boudreau, J., Boveia, A., Brigliadori, L., Bromberg, C., Brucken, E., Budagov, J., 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., Cavalli-Sforza, M., Cerri, A., Cerrito, L., Chen, Y., Chertok, M., Chiarelli, G., Chlachidze, G., Cho, K., Chou, J., Chokheli, D., Clark, A., Clarke, C., Convery, M., Conway, J., Corbo, M., Cordelli, M., Cox, C., Cox, D., Cremonesi, M., Cuevas, J., Culbertson, R., d’Ascenzo, N., Datta, M., Demortier, L., Deninno, M., Devoto, F., d’Errico, M., Di Canto, A., Di Ruzza, B., Dittmann, J., D’Onofrio, M., Donati, S., Dorigo, M., Driutti, A., Ebina, K., Edgar, R., Elagin, A., Erbacher, R., Errede, S., Esham, B., Eusebi, R., Farrington, S., Fernández Ramos, J., Field, R., Flanagan, G., Forrest, R., Franklin, M., Freeman, J., Funakoshi, Y., Garfinkel, A., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Gibson, K., Ginsburg, C., Giokaris, N., Giromini, P., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Goldschmidt, N., Golossanov, A., Gomez, G., Gomez-Ceballos, G., Goncharov, M., González López, O., Gorelov, I., Goshaw, A., Goulianos, K., Gramellini, E., Grinstein, S., Grosso-Pilcher, C., Group, R., Guimaraes da Costa, J., Hahn, S., Han, J., Happacher, F., Hara, K., Hare, M., Harr, R., Harrington-Taber, T., Hatakeyama, K., Hays, C., Heinrich, J., Herndon, M., Hocker, A., Hopkins, W., Hou, S., Hughes, R., Hurwitz, M., Husemann, U., Huston, J., Introzzi, G., Iori, M., Ivanov, A., James, E., Jang, D., Jayatilaka, B., Jeon, E., Jindariani, S., Jones, M., Joo, K., Jun, S., Junk, T., Kambeitz, M., Kamon, T., Karchin, P., Kasmi, A., Kato, Y., Ketchum, W., Keung, J., Kilminster, B., Kim, D., Kim, H., Kim, J., Kim, M., Kim, S., Kim, S., Kim, Y., Kim, Y., Kimura, N., Kirby, M., Klimenko, S., Knoepfel, K., Kondo, K., Kong, D., Konigsberg, J., Kotwal, A., Kreps, M., Kroll, J., Krop, D., Kruse, M., Kuhr, T., Kurata, M., Kwang, S., Laasanen, A., Lammel, S., Lancaster, M., Lannon, K., Latino, G., Lee, H., Lee, J., Leone, S., Lewis, J., Limosani, A., Lipeles, E., Liu, H., Liu, Q., Liu, T., Lockwitz, S., Loginov, A., Lucchesi, D., Lueck, J., Lujan, P., Lukens, P., Lungu, G., Lys, J., Lysak, R., Madrak, R., Maestro, P., Malik, S., Manca, G., Manousakis-Katsikakis, A., Margaroli, F., Martínez, M., Matera, K., Mattson, M., 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., Moore, R., Morello, M., Mukherjee, A., Muller, T., Murat, P., Mussini, M., Nachtman, J., Nagai, Y., Naganoma, J., Nakano, I., Napier, A., Nett, J., Neu, C., Nigmanov, T., Nodulman, L., Noh, S., Norniella, O., Oakes, L., Oh, S., Oh, Y., Oksuzian, I., Okusawa, T., Orava, R., Ortolan, L., Pagliarone, C., Palencia, E., Palni, P., Papadimitriou, V., Parker, W., Pauletta, G., Paulini, M., Paus, C., Phillips, T., Piacentino, G., Pianori, E., Pilot, J., Pitts, K., Plager, C., Pondrom, L., Poprocki, S., Potamianos, K., Prokoshin, F., Pranko, A., Ptohos, F., Punzi, G., Ranjan, N., Redondo Fernández, I., Renton, P., Rescigno, M., Riddick, T., Rimondi, F., Ristori, L., Robson, A., Rodriguez, T., Rolli, S., Ronzani, M., Roser, R., Rosner, J., Ruffini, F., Ruiz, A., Russ, J., Rusu, V., Safonov, A., Sakumoto, W., Sakurai, Y., Santi, L., Sato, K., Saveliev, V., Savoy-Navarro, A., Schlabach, P., Schmidt, E., Schwarz, T., Scodellaro, L., Seidel, S., Seiya, Y., Semenov, A., Sforza, F., Shalhout, S., Shears, T., Shepard, P., Shimojima, M., Shochet, M., Shreyber-Tecker, I., Simonenko, A., Sinervo, P., Sliwa, K., Smith, J., Snider, F., Sorin, V., Song, H., Stancari, M., St. Denis, R., Stelzer, B., Stelzer-Chilton, O., Stentz, D., Strologas, J., Sudo, Y., Sukhanov, A., Suslov, I., Takemasa, K., Takeuchi, Y., Tang, J., Tecchio, M., Teng, P., Thom, J., Thomson, E., Toback, D., Tokar, S., Tollefson, K., Tomura, T., Tonelli, D., Torre, S., Torretta, D., Totaro, P., Trovato, M., Ukegawa, F., Uozumi, S., Vázquez, F., Velev, G., Vellidis, C., Vernieri, C., Vidal, M., Vilar, R., Vizán, J., Vogel, M., Volpi, G., Wagner, P., Wallny, R., Wang, S., Warburton, A., Waters, D., Wester, W., Whiteson, D., Wicklund, A., Wilbur, S., Williams, H., Wilson, J., Wilson, P., Winer, B., Wittich, P., Wolbers, S., Wolfe, H., Wright, T., Wu, X., Wu, Z., Yamamoto, K., Yamato, D., Yang, T., Yang, U., Yang, Y., Yao, W.-M., Yeh, G., Yi, K., Yoh, J., Yorita, K., Yoshida, T., Yu, G., Yu, I., Zanetti, A., Zeng, Y., Zhou, C., and Zucchelli, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114

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