Details

Autor(en) / Beteiligte

• Adams, M
• Adams, T
• Alton, A
• Augsten, K
• Aushev, V
• Bagby, L
• Baringer, P
• Bartlett, J F
• Bazterra, V
• Begalli, M
• Bernardi, G
• Bernhard, R
• Bertram, I
• Bhat, P C
• Bloom, K
• Brandt, O
• Brown, D
• Burdin, S
• Castilla-Valdez, H
• Caughron, S
• Chakrabarti, S
• Chapon, E
• Cutts, D
• Das, A
• Déliot, F
• Denisov, D
• Desai, S
• DeVaughan, K
• Elvira, V D
• Evdokimov, A
• Filthaut, F
• Fisher, W
• Fortner, M
• Fox, H
• Garbincius, P H
• Gavrilov, V
• Gershtein, Y
• Ginther, G
• Gogota, O
• Grohsjean, A
• Grünewald, M W
• Harel, A
• Hays, J
• Hebbeker, T
• Heintz, U
• Hensel, C
• Hesketh, G
• Hobbs, J D
• Holzbauer, J L
• Ito, A S
• Jiang, P
• Johnson, M
• Joshi, J
• Karmanov, D
• Kohli, J M
• Kumar, A
• Kupco, A
• Kurča, T
• Lee, W M
• Lei, X
• Li, L
• Li, Q Z
• Linnemann, J
• Lipaev, V V
• Lobodenko, A
• Madar, R
• Meyer, A
• Orduna, J
• Parihar, V
• Park, S K
• Parua, N
• Price, D
• Prokopenko, N
• Quinn, B
• Razumov, I
• Rizatdinova, F
• Sanders, M P
• Savage, G
• Sawyer, L
• Schamberger, R D
• Schellman, H
• Schwienhorst, R
• Simak, V
• Slattery, P
• Tsybychev, D
• Tully, C
• Uvarov, L
• Uzunyan, S
• van Leeuwen, W M
• Vasilyev, I A
• Vertogradov, L S
• Verzocchi, M
• Vokac, P
• Wang, M H L S
• Watts, G
• Weichert, J
• Wobisch, M
• Xie, Y
• Youn, S W
• Zhao, T G

Titel

Evidence for a B_{s}^{0}π^{±} State

Ist Teil von

• Physical review letters, 2016-07, Vol.117 (2), p.022003-022003

Ort / Verlag

United States

Erscheinungsjahr

2016

Quelle

PROLA

Beschreibungen/Notizen

• We report evidence for a narrow structure, X(5568), in the decay sequence X(5568)→B_{s}^{0}π^{±}, B_{s}^{0}→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/c^{2} and Γ=21.9±6.4(stat)_{-2.5}^{+5.0}(syst)  MeV/c^{2}. If the decay is X(5568)→B_{s}^{*}π^{±}→B_{s}^{0}γπ^{±} with an unseen γ, m(X(5568)) will be shifted up by m(B_{s}^{*})-m(B_{s}^{0})∼49  MeV/c^{2}. This measurement is based on 10.4  fb^{-1} of pp[over ¯] collision data at sqrt[s]=1.96  TeV collected by the D0 experiment at the Fermilab Tevatron collider.