Details

Autor(en) / Beteiligte

• Askew, A.
• Aushev, V.
• Avila, C.
• Bellantoni, L.
• Besancon, M.
• Blazey, G.
• Boline, D.
• Borysova, M.
• Buehler, M.
• Burdin, S.
• Buszello, Claus P.
• Camacho-Perez, E.
• Castilla-Valdez, H.
• Chapon, E.
• Choudhary, B.
• Clutter, J.
• Cooper, W. E.
• Cuth, J.
• Das, A.
• DeVaughan, K.
• Drutskoy, A.
• Dudko, L. V.
• Eads, M.
• Evdokimov, A.
• Evdokimov, V. N.
• Feng, L.
• Ferbel, T.
• Filthaut, F.
• Fisk, H. E.
• Fox, H.
• Fuess, S.
• Garbincius, P. H.
• Gerber, C. E.
• Gershtein, Y.
• Ginther, G.
• Grenier, G.
• Hauptman, J. M.
• Hedin, D.
• Hegab, H.
• Heinson, A. P.
• Heintz, U.
• Holzbauer, J. L.
• Ito, A. S.
• Jabeen, S.
• Jaffre, M.
• Jayasinghe, A.
• Johnson, M.
• Jonsson, P.
• Jung, A. W.
• Katsanos, I.
• Kharchilava, A.
• Kozelov, A. V.
• Kurca, T.
• Lee, W. M.
• Li, H.
• Li, Q. Z.
• Lincoln, D.
• Linnemann, J.
• Liu, H.
• Lokajicek, M.
• Luna-Garcia, R.
• Malyshev, V. L.
• McCarthy, R.
• Mercadante, P. G.
• Merkin, M.
• Meyer, J.
• Negret, J. P.
• Nguyen, H. T.
• Orduna, J.
• Parua, N.
• Perfilov, M.
• Peters, Y.
• Podstavkov, V. M.
• Popov, A. V.
• Prewitt, M.
• Rizatdinova, F.
• Rominsky, M.
• Ross, A.
• Sanders, M. P.
• Sawyer, L.
• Schamberger, R. D.
• Sekaric, J.
• Simak, V.
• Sonnenschein, L.
• Soustruznik, K.
• Stark, J.
• Tokmenin, V. V.
• Van Kooten, R.
• van Leeuwen, W. M.
• Vertogradov, L. S.
• Vesterinen, M.
• Vokac, P.
• Wang, M. H. L. S.
• Warchol, J.
• Wayne, M.
• Weichert, J.
• Yatsunenko, Y. A.
• Yin, H.
• Zhao, T. G.
• Zielinski, M.

Titel

Evidence for a B-s(0)pi(+/-) State

Ist Teil von

• Physical review letters, 2016-07, Vol.117 (2)

Erscheinungsjahr

2016

Quelle

American Physical Society

Beschreibungen/Notizen

• We report evidence for a narrow structure, X(5568), in the decay sequence X(5568) -> B-s(0)pi(+/-), B-s(0) -> J/psi phi, J/psi -> mu(+)mu(-), phi -> 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/c(2) and Gamma = 21.9 +/- 6.4(stat)(-2.5)(+5.0) (syst) MeV/c(2). If the decay is X(5568) -> B-s*pi(+/-). B-s(0)gamma pi(+/-) with an unseen gamma, m(X(5568)) will be shifted up by m(B-s*) - m(B-s(0)) similar to 49 MeV/c(2). This measurement is based on 10.4 fb(-1) of p (p) over bar collision data at root s = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider.