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Aaltonen, T, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, JA, Arisawa, T, Artikov, A et al (show 388 more authors) , 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 
ORCID: 0000-0003-2408-5099, Dorigo, M, Driutti, A, Ebina, K, Edgar, R, Elagin, A, 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, 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 ORCID: 0000-0003-2619-9743, Mehtala, P, Mesropian, C, Miao, T, Michielin, E, 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 ORCID: 0000-0002-2653-1366, Shepard, PF, Shimojima, M, Shochet, M, Shreyber-Tecker, I, Simonenko, A, Sliwa, K, Smith, JR, Snider, FD, Song, H, Sorin, V, St Denis, R, 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, Wester, WCIII, Whiteson, D, Wicklund, AB, Wilbur, S, Williams, HH, Wilson, JS, Wilson, P, Winer, BL, Wittich, P, Wolbers, S, Wolfmeister, 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 and Zucchelli, S
(2018)
Search for standard-model Z and Higgs bosons decaying into a bottom-antibottom quark pair in proton-antiproton collisions at 1.96 TeV.
PHYSICAL REVIEW D, 98 (7).
072002-.
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Abstract
The Collider Detector at Fermilab collected a unique sample of jets
originating from bottom-quark fragmentation ($b$-jets) by selecting online
proton-antiproton ($p\bar{p}$) collisions with a vertex displaced from the
$p\bar{p}$ interaction point, consistent with the decay of a bottom-quark
hadron. This data set, collected at a center-of-mass energy of $\sqrt{s}=$1.96
TeV, and corresponding to an integrated luminosity of $5.4~\rm{fb}^{-1}$, is
used to measure the $Z$-boson production cross section times branching ratio
into $b\bar{b}$. The number of $Z\rightarrow b\bar{b}$ events is determined by
fitting the dijet-mass distribution while constraining the dominant $b$-jet
background, originating from QCD multijet events, with data. The result,
$\sigma(p\bar{p} \rightarrow Z) \times \mathcal{B}(Z \rightarrow b\bar{b})=
1.11\pm 0.08(\text{stat}) \pm 0.14(\text{syst})~\text{nb}$, is the most precise
measurement of this process, and is consistent with the standard-model
prediction. The data set is also used to search for Higgs-boson production. No
significant signal is expected in our data and the first upper limit on the
cross section for the inclusive $p\bar p \rightarrow H\rightarrow b\bar b$
process at $\sqrt{s}=$1.96 TeV is set, corresponding to 33 times the expected
standard-model cross section, or $\sigma = 40.6$ pb, at the 95\% confidence
level.
Dimensions
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