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Observation of a new $B_s^0 \pi^\pm$ state
We report the observation of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \rightarrow B_s^0 \pi^{\pm}$, $B_s^0 \rightarrow J/\psi \phi$, $J/\psi\rightarrow \mu^+ \mu^-$, $\phi \rightarrow K^+K^-$. This is the first observation of a hadronic state with valence quarks of four differen...
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Lenguaje: | eng |
Publicado: |
2016
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.117.022003 http://cds.cern.ch/record/2134236 |
_version_ | 1780949885249388544 |
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author | Abazov, V.M. Abbott, B. Acharya, B.S. Adams, M. Adams, T. Agnew, J.P. Alexeev, G.D. Alkhazov, G. Alton, A. Askew, A. Atkins, S. Augsten, K. Aushev, V. Aushev, Y. Avila, C. Badaud, F. Bagby, L. Baldin, B. Bandurin, D.V. Banerjee, S. Barberis, E. Baringer, P. Bartlett, J.F. Bassler, U. Bazterra, V. Bean, A. Begalli, M. Bellantoni, L. Beri, S.B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bhat, P.C. Bhatia, S. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E.E. Borissov, G. Borysova, M. Brandt, A. Brandt, O. Brochmann, M. Brock, R. Bross, A. Brown, D. Bu, X.B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Buszello, C.P. Camacho-Perez, E. Casey, B.C.K. Castilla-Valdez, H. Caughron, S. Chakrabarti, S. Chan, K.M. Chandra, A. Chapon, E. Chen, G. Cho, S.W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W.E. Corcoran, M. Couderc, F. Cousinou, M.C. Cuth, J. Cutts, D. Das, A. Davies, G. de Jong, S.J. De La Cruz-Burelo, E. Deliot, F. Demina, R. Denisov, D. Denisov, S.P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H.T. Diesburg, M. Ding, P.F. Dominguez, A. Drutskoy, A. Dubey, A. Dudko, L.V. Duperrin, A. Dutt, S. Eads, M. Edmunds, D. Ellison, J. Elvira, V.D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V.N. Faure, A. Feng, L. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H.E. Fortner, M. Fox, H. Franc, J. Fuess, S. Garbincius, P.H. Garcia-Bellido, A. Garcia-Gonzalez, J.A. Gavrilov, V. Geng, W. Gerber, C.E. Gershtein, Y. Ginther, G. Gogota, O. Golovanov, G. Grannis, P.D. Greder, S. Greenlee, H. Grenier, G. Gris, Ph. Grivaz, J.F. Grohsjean, A. Grunendahl, S. Grunewald, M.W. Guillemin, T. Gutierrez, G. Gutierrez, P. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J.M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A.P. Heintz, U. Hensel, C. La Cruz, I.Heredia-De Herner, K. Hesketh, G. Hildreth, M.D. Hirosky, R. Hoang, T. Hobbs, J.D. Hoeneisen, B. Hogan, J. Hohlfeld, M. Holzbauer, J.L. Howley, I. Hubacek, Z. Hynek, V. Iashvili, I. Ilchenko, Y. Illingworth, R. Ito, A.S. Jabeen, S. Jaffre, M. Jayasinghe, A. Jeong, M.S. Jesik, R. Jiang, P. Johns, K. Johnson, E. Johnson, M. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A.W. Juste, A. Kajfasz, E. Karmanov, D. Katsanos, I. Kaur, M. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y.N. Kiselevich, I. Kohli, J.M. Kozelov, A.V. Kraus, J. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V.A. Lammers, S. Lebrun, P. Lee, H.S. Lee, S.W. Lee, W.M. Lei, X. Lellouch, J. Li, D. Li, H. Li, L. Li, Q.Z. Lim, J.K. Lincoln, D. Linnemann, J. Lipaev, V.V. Lipton, R. Liu, H. Liu, Y. Lobodenko, A. Lokajicek, M. Lopes de Sa, R. Luna-Garcia, R. Lyon, A.L. Maciel, A.K.A. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V.L. Mansour, J. Martinez-Ortega, J. McCarthy, R. McGivern, C.L. Meijer, M.M. Melnitchouk, A. Menezes, D. Mercadante, P.G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N.K. Mulhearn, M. Nagy, E. Narain, M. Nayyar, R. Neal, H.A. Negret, J.P. Neustroev, P. Nguyen, H.T. Nunnemann, T. Orduna, J. Osman, N. Pal, A. Parashar, N. Parihar, V. Park, S.K. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Pleier, M.A. Podstavkov, V.M. Popov, A.V. Prewitt, M. Price, D. Prokopenko, N. Qian, J. Quadt, A. Quinn, B. Ratoff, P.N. Razumov, I. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Sajot, G. Sanchez-Hernandez, A. Sanders, M.P. Santos, A.S. Savage, G. Savitskyi, M. Sawyer, L. Scanlon, T. Schamberger, R.D. Scheglov, Y. Schellman, H. Schott, M. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shaw, S. Shchukin, A.A. Simak, V. Skubic, P. Slattery, P. Snow, G.R. Snow, J. Snyder, S. Soldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stefaniuk, N. Stoyanova, D.A. Strauss, M. Suter, L. Svoisky, P. Titov, M. Tokmenin, V.V. Tsai, Y.T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. W. van Leeuwen, M. Varelas, N. Varnes, E.W. Vasilyev, I.A. Verkheev, A.Y. Vertogradov, L.S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H.D. Wang, M.H.L.S. Warchol, J. Watts, G. Wayne, M. Weichert, J. Welty-Rieger, L. Williams, M.R.J. Wilson, G.W. Wobisch, M. Wood, D.R. Wyatt, T.R. Xie, Y. Yamada, R. Yang, S. Yasuda, T. Yatsunenko, Y.A. Ye, W. Ye, Z. Yin, H. Yip, K. Youn, S.W. Yu, J.M. Zennamo, J. Zhao, T.G. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. |
author_facet | Abazov, V.M. Abbott, B. Acharya, B.S. Adams, M. Adams, T. Agnew, J.P. Alexeev, G.D. Alkhazov, G. Alton, A. Askew, A. Atkins, S. Augsten, K. Aushev, V. Aushev, Y. Avila, C. Badaud, F. Bagby, L. Baldin, B. Bandurin, D.V. Banerjee, S. Barberis, E. Baringer, P. Bartlett, J.F. Bassler, U. Bazterra, V. Bean, A. Begalli, M. Bellantoni, L. Beri, S.B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bhat, P.C. Bhatia, S. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E.E. Borissov, G. Borysova, M. Brandt, A. Brandt, O. Brochmann, M. Brock, R. Bross, A. Brown, D. Bu, X.B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Buszello, C.P. Camacho-Perez, E. Casey, B.C.K. Castilla-Valdez, H. Caughron, S. Chakrabarti, S. Chan, K.M. Chandra, A. Chapon, E. Chen, G. Cho, S.W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W.E. Corcoran, M. Couderc, F. Cousinou, M.C. Cuth, J. Cutts, D. Das, A. Davies, G. de Jong, S.J. De La Cruz-Burelo, E. Deliot, F. Demina, R. Denisov, D. Denisov, S.P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H.T. Diesburg, M. Ding, P.F. Dominguez, A. Drutskoy, A. Dubey, A. Dudko, L.V. Duperrin, A. Dutt, S. Eads, M. Edmunds, D. Ellison, J. Elvira, V.D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V.N. Faure, A. Feng, L. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H.E. Fortner, M. Fox, H. Franc, J. Fuess, S. Garbincius, P.H. Garcia-Bellido, A. Garcia-Gonzalez, J.A. Gavrilov, V. Geng, W. Gerber, C.E. Gershtein, Y. Ginther, G. Gogota, O. Golovanov, G. Grannis, P.D. Greder, S. Greenlee, H. Grenier, G. Gris, Ph. Grivaz, J.F. Grohsjean, A. Grunendahl, S. Grunewald, M.W. Guillemin, T. Gutierrez, G. Gutierrez, P. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J.M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A.P. Heintz, U. Hensel, C. La Cruz, I.Heredia-De Herner, K. Hesketh, G. Hildreth, M.D. Hirosky, R. Hoang, T. Hobbs, J.D. Hoeneisen, B. Hogan, J. Hohlfeld, M. Holzbauer, J.L. Howley, I. Hubacek, Z. Hynek, V. Iashvili, I. Ilchenko, Y. Illingworth, R. Ito, A.S. Jabeen, S. Jaffre, M. Jayasinghe, A. Jeong, M.S. Jesik, R. Jiang, P. Johns, K. Johnson, E. Johnson, M. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A.W. Juste, A. Kajfasz, E. Karmanov, D. Katsanos, I. Kaur, M. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y.N. Kiselevich, I. Kohli, J.M. Kozelov, A.V. Kraus, J. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V.A. Lammers, S. Lebrun, P. Lee, H.S. Lee, S.W. Lee, W.M. Lei, X. Lellouch, J. Li, D. Li, H. Li, L. Li, Q.Z. Lim, J.K. Lincoln, D. Linnemann, J. Lipaev, V.V. Lipton, R. Liu, H. Liu, Y. Lobodenko, A. Lokajicek, M. Lopes de Sa, R. Luna-Garcia, R. Lyon, A.L. Maciel, A.K.A. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V.L. Mansour, J. Martinez-Ortega, J. McCarthy, R. McGivern, C.L. Meijer, M.M. Melnitchouk, A. Menezes, D. Mercadante, P.G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N.K. Mulhearn, M. Nagy, E. Narain, M. Nayyar, R. Neal, H.A. Negret, J.P. Neustroev, P. Nguyen, H.T. Nunnemann, T. Orduna, J. Osman, N. Pal, A. Parashar, N. Parihar, V. Park, S.K. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Pleier, M.A. Podstavkov, V.M. Popov, A.V. Prewitt, M. Price, D. Prokopenko, N. Qian, J. Quadt, A. Quinn, B. Ratoff, P.N. Razumov, I. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Sajot, G. Sanchez-Hernandez, A. Sanders, M.P. Santos, A.S. Savage, G. Savitskyi, M. Sawyer, L. Scanlon, T. Schamberger, R.D. Scheglov, Y. Schellman, H. Schott, M. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shaw, S. Shchukin, A.A. Simak, V. Skubic, P. Slattery, P. Snow, G.R. Snow, J. Snyder, S. Soldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stefaniuk, N. Stoyanova, D.A. Strauss, M. Suter, L. Svoisky, P. Titov, M. Tokmenin, V.V. Tsai, Y.T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. W. van Leeuwen, M. Varelas, N. Varnes, E.W. Vasilyev, I.A. Verkheev, A.Y. Vertogradov, L.S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H.D. Wang, M.H.L.S. Warchol, J. Watts, G. Wayne, M. Weichert, J. Welty-Rieger, L. Williams, M.R.J. Wilson, G.W. Wobisch, M. Wood, D.R. Wyatt, T.R. Xie, Y. Yamada, R. Yang, S. Yasuda, T. Yatsunenko, Y.A. Ye, W. Ye, Z. Yin, H. Yip, K. Youn, S.W. Yu, J.M. Zennamo, J. Zhao, T.G. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. |
author_sort | Abazov, V.M. |
collection | CERN |
description | We report the observation of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \rightarrow B_s^0 \pi^{\pm}$, $B_s^0 \rightarrow J/\psi \phi$, $J/\psi\rightarrow \mu^+ \mu^-$, $\phi \rightarrow K^+K^-$. This is the first observation of a hadronic state with valence quarks of four different flavors. The mass and natural width of the new state are measured to be $m = 5567.8 \pm 2.9 {\rm \thinspace (stat)} ^{+0.9}_{-1.9} {\rm \thinspace (syst)}$ MeV/$c^2$ and $\Gamma = 21.9 \pm 6.4 {\rm \thinspace (stat)} ^{+5.0}_{-2.5} {\rm \thinspace (syst)} $ MeV/$c^2$, and the significance including look-elsewhere effect and systematic uncertainties is 5.1$\sigma$. The observation is based on$10.4~\rm{fb^{-1}}$ of $p \overline p $ collision data at $\sqrt{s}$ = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. |
id | cern-2134236 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2016 |
record_format | invenio |
spelling | cern-21342362023-05-16T08:52:08Zdoi:10.1103/PhysRevLett.117.022003http://cds.cern.ch/record/2134236engAbazov, V.M.Abbott, B.Acharya, B.S.Adams, M.Adams, T.Agnew, J.P.Alexeev, G.D.Alkhazov, G.Alton, A.Askew, A.Atkins, S.Augsten, K.Aushev, V.Aushev, Y.Avila, C.Badaud, F.Bagby, L.Baldin, B.Bandurin, D.V.Banerjee, S.Barberis, E.Baringer, P.Bartlett, J.F.Bassler, U.Bazterra, V.Bean, A.Begalli, M.Bellantoni, L.Beri, S.B.Bernardi, G.Bernhard, R.Bertram, I.Besancon, M.Beuselinck, R.Bhat, P.C.Bhatia, S.Bhatnagar, V.Blazey, G.Blessing, S.Bloom, K.Boehnlein, A.Boline, D.Boos, E.E.Borissov, G.Borysova, M.Brandt, A.Brandt, O.Brochmann, M.Brock, R.Bross, A.Brown, D.Bu, X.B.Buehler, M.Buescher, V.Bunichev, V.Burdin, S.Buszello, C.P.Camacho-Perez, E.Casey, B.C.K.Castilla-Valdez, H.Caughron, S.Chakrabarti, S.Chan, K.M.Chandra, A.Chapon, E.Chen, G.Cho, S.W.Choi, S.Choudhary, B.Cihangir, S.Claes, D.Clutter, J.Cooke, M.Cooper, W.E.Corcoran, M.Couderc, F.Cousinou, M.C.Cuth, J.Cutts, D.Das, A.Davies, G.de Jong, S.J.De La Cruz-Burelo, E.Deliot, F.Demina, R.Denisov, D.Denisov, S.P.Desai, S.Deterre, C.DeVaughan, K.Diehl, H.T.Diesburg, M.Ding, P.F.Dominguez, A.Drutskoy, A.Dubey, A.Dudko, L.V.Duperrin, A.Dutt, S.Eads, M.Edmunds, D.Ellison, J.Elvira, V.D.Enari, Y.Evans, H.Evdokimov, A.Evdokimov, V.N.Faure, A.Feng, L.Ferbel, T.Fiedler, F.Filthaut, F.Fisher, W.Fisk, H.E.Fortner, M.Fox, H.Franc, J.Fuess, S.Garbincius, P.H.Garcia-Bellido, A.Garcia-Gonzalez, J.A.Gavrilov, V.Geng, W.Gerber, C.E.Gershtein, Y.Ginther, G.Gogota, O.Golovanov, G.Grannis, P.D.Greder, S.Greenlee, H.Grenier, G.Gris, Ph.Grivaz, J.F.Grohsjean, A.Grunendahl, S.Grunewald, M.W.Guillemin, T.Gutierrez, G.Gutierrez, P.Haley, J.Han, L.Harder, K.Harel, A.Hauptman, J.M.Hays, J.Head, T.Hebbeker, T.Hedin, D.Hegab, H.Heinson, A.P.Heintz, U.Hensel, C.La Cruz, I.Heredia-DeHerner, K.Hesketh, G.Hildreth, M.D.Hirosky, R.Hoang, T.Hobbs, J.D.Hoeneisen, B.Hogan, J.Hohlfeld, M.Holzbauer, J.L.Howley, I.Hubacek, Z.Hynek, V.Iashvili, I.Ilchenko, Y.Illingworth, R.Ito, A.S.Jabeen, S.Jaffre, M.Jayasinghe, A.Jeong, M.S.Jesik, R.Jiang, P.Johns, K.Johnson, E.Johnson, M.Jonckheere, A.Jonsson, P.Joshi, J.Jung, A.W.Juste, A.Kajfasz, E.Karmanov, D.Katsanos, I.Kaur, M.Kehoe, R.Kermiche, S.Khalatyan, N.Khanov, A.Kharchilava, A.Kharzheev, Y.N.Kiselevich, I.Kohli, J.M.Kozelov, A.V.Kraus, J.Kumar, A.Kupco, A.Kurca, T.Kuzmin, V.A.Lammers, S.Lebrun, P.Lee, H.S.Lee, S.W.Lee, W.M.Lei, X.Lellouch, J.Li, D.Li, H.Li, L.Li, Q.Z.Lim, J.K.Lincoln, D.Linnemann, J.Lipaev, V.V.Lipton, R.Liu, H.Liu, Y.Lobodenko, A.Lokajicek, M.Lopes de Sa, R.Luna-Garcia, R.Lyon, A.L.Maciel, A.K.A.Madar, R.Magana-Villalba, R.Malik, S.Malyshev, V.L.Mansour, J.Martinez-Ortega, J.McCarthy, R.McGivern, C.L.Meijer, M.M.Melnitchouk, A.Menezes, D.Mercadante, P.G.Merkin, M.Meyer, A.Meyer, J.Miconi, F.Mondal, N.K.Mulhearn, M.Nagy, E.Narain, M.Nayyar, R.Neal, H.A.Negret, J.P.Neustroev, P.Nguyen, H.T.Nunnemann, T.Orduna, J.Osman, N.Pal, A.Parashar, N.Parihar, V.Park, S.K.Partridge, R.Parua, N.Patwa, A.Penning, B.Perfilov, M.Peters, Y.Petridis, K.Petrillo, G.Petroff, P.Pleier, M.A.Podstavkov, V.M.Popov, A.V.Prewitt, M.Price, D.Prokopenko, N.Qian, J.Quadt, A.Quinn, B.Ratoff, P.N.Razumov, I.Ripp-Baudot, I.Rizatdinova, F.Rominsky, M.Ross, A.Royon, C.Rubinov, P.Ruchti, R.Sajot, G.Sanchez-Hernandez, A.Sanders, M.P.Santos, A.S.Savage, G.Savitskyi, M.Sawyer, L.Scanlon, T.Schamberger, R.D.Scheglov, Y.Schellman, H.Schott, M.Schwanenberger, C.Schwienhorst, R.Sekaric, J.Severini, H.Shabalina, E.Shary, V.Shaw, S.Shchukin, A.A.Simak, V.Skubic, P.Slattery, P.Snow, G.R.Snow, J.Snyder, S.Soldner-Rembold, S.Sonnenschein, L.Soustruznik, K.Stark, J.Stefaniuk, N.Stoyanova, D.A.Strauss, M.Suter, L.Svoisky, P.Titov, M.Tokmenin, V.V.Tsai, Y.T.Tsybychev, D.Tuchming, B.Tully, C.Uvarov, L.Uvarov, S.Uzunyan, S.Van Kooten, R.W. van Leeuwen, M.Varelas, N.Varnes, E.W.Vasilyev, I.A.Verkheev, A.Y.Vertogradov, L.S.Verzocchi, M.Vesterinen, M.Vilanova, D.Vokac, P.Wahl, H.D.Wang, M.H.L.S.Warchol, J.Watts, G.Wayne, M.Weichert, J.Welty-Rieger, L.Williams, M.R.J.Wilson, G.W.Wobisch, M.Wood, D.R.Wyatt, T.R.Xie, Y.Yamada, R.Yang, S.Yasuda, T.Yatsunenko, Y.A.Ye, W.Ye, Z.Yin, H.Yip, K.Youn, S.W.Yu, J.M.Zennamo, J.Zhao, T.G.Zhou, B.Zhu, J.Zielinski, M.Zieminska, D.Zivkovic, L.Observation of a new $B_s^0 \pi^\pm$ stateParticle Physics - ExperimentWe report the observation of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \rightarrow B_s^0 \pi^{\pm}$, $B_s^0 \rightarrow J/\psi \phi$, $J/\psi\rightarrow \mu^+ \mu^-$, $\phi \rightarrow K^+K^-$. This is the first observation of a hadronic state with valence quarks of four different flavors. The mass and natural width of the new state are measured to be $m = 5567.8 \pm 2.9 {\rm \thinspace (stat)} ^{+0.9}_{-1.9} {\rm \thinspace (syst)}$ MeV/$c^2$ and $\Gamma = 21.9 \pm 6.4 {\rm \thinspace (stat)} ^{+5.0}_{-2.5} {\rm \thinspace (syst)} $ MeV/$c^2$, and the significance including look-elsewhere effect and systematic uncertainties is 5.1$\sigma$. The observation is based on$10.4~\rm{fb^{-1}}$ of $p \overline p $ collision data at $\sqrt{s}$ = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider.We report evidence for a narrow structure, X(5568), in the decay sequence X(5568)→Bs0π±, Bs0→J/ψϕ, J/ψ→μ+μ-, ϕ→K+K-. This is evidence for the first instance of a hadronic state with valence quarks of four different flavors. The mass and natural width of this state are measured to be m=5567.8±2.9(stat)-1.9+0.9(syst) MeV/c2 and Γ=21.9±6.4(stat)-2.5+5.0(syst) MeV/c2. If the decay is X(5568)→Bs*π±→Bs0γπ± with an unseen γ, m(X(5568)) will be shifted up by m(Bs*)-m(Bs0)∼49 MeV/c2. This measurement is based on 10.4 fb−1 of pp¯ collision data at s=1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider.We report evidence of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \rightarrow B_s^0 \pi^{\pm}$, $B_s^0 \rightarrow J/\psi \phi$, $J/\psi\rightarrow \mu^+ \mu^-$, $\phi \rightarrow K^+K^-$. This is evidence for the first instance of a hadronic state with valence quarks of four different flavors. The mass and natural width of this state are measured to be $m = 5567.8 \pm 2.9 {\rm \thinspace (stat)} ^{+0.9}_{-1.9} {\rm \thinspace (syst)}$ MeV/$c^2$ and $\Gamma = 21.9 \pm 6.4 {\rm \thinspace (stat)} ^{+5.0}_{-2.5} {\rm \thinspace (syst)} $ MeV/$c^2$. If the decay is $X(5568) \rightarrow B_s^* \pi^{\pm} \rightarrow B_s^0 \gamma \pi^{\pm}$ with an unseen $\gamma$, $m(X(5568))$ will be shifted up by $m(B_s^*) - m(B_s^0) \sim 49$ MeV/$c^2$. This measurement is based on $10.4~\rm{fb^{-1}}$ of $p \bar p $ collision data at $\sqrt{s}$ = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider.arXiv:1602.07588FERMILAB-PUB-16-038-EFERMILAB-PUB-16-038-Eoai:cds.cern.ch:21342362016-02-24 |
spellingShingle | Particle Physics - Experiment Abazov, V.M. Abbott, B. Acharya, B.S. Adams, M. Adams, T. Agnew, J.P. Alexeev, G.D. Alkhazov, G. Alton, A. Askew, A. Atkins, S. Augsten, K. Aushev, V. Aushev, Y. Avila, C. Badaud, F. Bagby, L. Baldin, B. Bandurin, D.V. Banerjee, S. Barberis, E. Baringer, P. Bartlett, J.F. Bassler, U. Bazterra, V. Bean, A. Begalli, M. Bellantoni, L. Beri, S.B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bhat, P.C. Bhatia, S. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E.E. Borissov, G. Borysova, M. Brandt, A. Brandt, O. Brochmann, M. Brock, R. Bross, A. Brown, D. Bu, X.B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Buszello, C.P. Camacho-Perez, E. Casey, B.C.K. Castilla-Valdez, H. Caughron, S. Chakrabarti, S. Chan, K.M. Chandra, A. Chapon, E. Chen, G. Cho, S.W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W.E. Corcoran, M. Couderc, F. Cousinou, M.C. Cuth, J. Cutts, D. Das, A. Davies, G. de Jong, S.J. De La Cruz-Burelo, E. Deliot, F. Demina, R. Denisov, D. Denisov, S.P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H.T. Diesburg, M. Ding, P.F. Dominguez, A. Drutskoy, A. Dubey, A. Dudko, L.V. Duperrin, A. Dutt, S. Eads, M. Edmunds, D. Ellison, J. Elvira, V.D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V.N. Faure, A. Feng, L. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H.E. Fortner, M. Fox, H. Franc, J. Fuess, S. Garbincius, P.H. Garcia-Bellido, A. Garcia-Gonzalez, J.A. Gavrilov, V. Geng, W. Gerber, C.E. Gershtein, Y. Ginther, G. Gogota, O. Golovanov, G. Grannis, P.D. Greder, S. Greenlee, H. Grenier, G. Gris, Ph. Grivaz, J.F. Grohsjean, A. Grunendahl, S. Grunewald, M.W. Guillemin, T. Gutierrez, G. Gutierrez, P. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J.M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A.P. Heintz, U. Hensel, C. La Cruz, I.Heredia-De Herner, K. Hesketh, G. Hildreth, M.D. Hirosky, R. Hoang, T. Hobbs, J.D. Hoeneisen, B. Hogan, J. Hohlfeld, M. Holzbauer, J.L. Howley, I. Hubacek, Z. Hynek, V. Iashvili, I. Ilchenko, Y. Illingworth, R. Ito, A.S. Jabeen, S. Jaffre, M. Jayasinghe, A. Jeong, M.S. Jesik, R. Jiang, P. Johns, K. Johnson, E. Johnson, M. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A.W. Juste, A. Kajfasz, E. Karmanov, D. Katsanos, I. Kaur, M. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y.N. Kiselevich, I. Kohli, J.M. Kozelov, A.V. Kraus, J. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V.A. Lammers, S. Lebrun, P. Lee, H.S. Lee, S.W. Lee, W.M. Lei, X. Lellouch, J. Li, D. Li, H. Li, L. Li, Q.Z. Lim, J.K. Lincoln, D. Linnemann, J. Lipaev, V.V. Lipton, R. Liu, H. Liu, Y. Lobodenko, A. Lokajicek, M. Lopes de Sa, R. Luna-Garcia, R. Lyon, A.L. Maciel, A.K.A. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V.L. Mansour, J. Martinez-Ortega, J. McCarthy, R. McGivern, C.L. Meijer, M.M. Melnitchouk, A. Menezes, D. Mercadante, P.G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N.K. Mulhearn, M. Nagy, E. Narain, M. Nayyar, R. Neal, H.A. Negret, J.P. Neustroev, P. Nguyen, H.T. Nunnemann, T. Orduna, J. Osman, N. Pal, A. Parashar, N. Parihar, V. Park, S.K. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Pleier, M.A. Podstavkov, V.M. Popov, A.V. Prewitt, M. Price, D. Prokopenko, N. Qian, J. Quadt, A. Quinn, B. Ratoff, P.N. Razumov, I. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Sajot, G. Sanchez-Hernandez, A. Sanders, M.P. Santos, A.S. Savage, G. Savitskyi, M. Sawyer, L. Scanlon, T. Schamberger, R.D. Scheglov, Y. Schellman, H. Schott, M. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shaw, S. Shchukin, A.A. Simak, V. Skubic, P. Slattery, P. Snow, G.R. Snow, J. Snyder, S. Soldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stefaniuk, N. Stoyanova, D.A. Strauss, M. Suter, L. Svoisky, P. Titov, M. Tokmenin, V.V. Tsai, Y.T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. W. van Leeuwen, M. Varelas, N. Varnes, E.W. Vasilyev, I.A. Verkheev, A.Y. Vertogradov, L.S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H.D. Wang, M.H.L.S. Warchol, J. Watts, G. Wayne, M. Weichert, J. Welty-Rieger, L. Williams, M.R.J. Wilson, G.W. Wobisch, M. Wood, D.R. Wyatt, T.R. Xie, Y. Yamada, R. Yang, S. Yasuda, T. Yatsunenko, Y.A. Ye, W. Ye, Z. Yin, H. Yip, K. Youn, S.W. Yu, J.M. Zennamo, J. Zhao, T.G. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. Observation of a new $B_s^0 \pi^\pm$ state |
title | Observation of a new $B_s^0 \pi^\pm$ state |
title_full | Observation of a new $B_s^0 \pi^\pm$ state |
title_fullStr | Observation of a new $B_s^0 \pi^\pm$ state |
title_full_unstemmed | Observation of a new $B_s^0 \pi^\pm$ state |
title_short | Observation of a new $B_s^0 \pi^\pm$ state |
title_sort | observation of a new $b_s^0 \pi^\pm$ state |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1103/PhysRevLett.117.022003 http://cds.cern.ch/record/2134236 |
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