TY - JOUR
T1 - Study of b-hadron decays to Λc+h−h′− final states
AU - Aaij, R.
AU - Abdelmotteleb, A. S.W.
AU - Abellan Beteta, C.
AU - Abudinén, F.
AU - Ackernley, T.
AU - Adefisoye, A. A.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Adlarson, P.
AU - Agapopoulou, C.
AU - Aidala, C. A.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Akiba, K.
AU - Albicocco, P.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Aliouche, Z.
AU - Alvarez Cartelle, P.
AU - Amalric, R.
AU - Amato, S.
AU - Amey, J. L.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andersson, M.
AU - Andreianov, A.
AU - Andreola, P.
AU - Andreotti, M.
AU - Andreou, D.
AU - Anelli, A.
AU - Ao, D.
AU - Archilli, F.
AU - Argenton, M.
AU - Arguedas Cuendis, S.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Ataide Da Silva, R.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bacher, D.
AU - Bachiller Perea, I.
AU - Bachmann, S.
AU - Bachmayer, M.
AU - Back, J. J.
AU - Baladron Rodriguez, P.
AU - Balagura, V.
AU - Baldini, W.
AU - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - Cámpora Pérez, Daniel Hugo
AU - de Vries, Jacco
AU - Lucio Martinez, Miriam
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
N1 - Publisher Copyright:
© The Author(s) 2024.
PY - 2024/8/1
Y1 - 2024/8/1
N2 - Decays of Ξ
b
− and Ω
b
− baryons to Λ
c
+h
−h
′− final states, with h
−h
′− being π
−π
−, K
−π
− and K
−K
− meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of 8.7 fb
−1 of pp collisions collected at centre-of-mass energies s = 7, 8 and 13 TeV. The products of the relative branching fractions and fragmentation fractions for each signal mode, relative to the B
−→Λ
c
+p¯π
− mode, are measured, with Ξ
b
−→Λ
c
+K
−π
−, Ξ
b
−→Λ
c
+K
−K
− and Ω
b
−→Λ
c
+K
−K
− decays being observed at over 5 σ significance. The Ξ
b
−→Λ
c
+K
−π
− mode is also used to measure the Ξ
b
− production asymmetry, which is found to be consistent with zero. In addition, the B
−→Λ
c
+p¯K
− decay is observed for the first time, and its branching fraction is measured relative to that of the B
−→Λ
c
+p¯π
− mode.
AB - Decays of Ξ
b
− and Ω
b
− baryons to Λ
c
+h
−h
′− final states, with h
−h
′− being π
−π
−, K
−π
− and K
−K
− meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of 8.7 fb
−1 of pp collisions collected at centre-of-mass energies s = 7, 8 and 13 TeV. The products of the relative branching fractions and fragmentation fractions for each signal mode, relative to the B
−→Λ
c
+p¯π
− mode, are measured, with Ξ
b
−→Λ
c
+K
−π
−, Ξ
b
−→Λ
c
+K
−K
− and Ω
b
−→Λ
c
+K
−K
− decays being observed at over 5 σ significance. The Ξ
b
−→Λ
c
+K
−π
− mode is also used to measure the Ξ
b
− production asymmetry, which is found to be consistent with zero. In addition, the B
−→Λ
c
+p¯K
− decay is observed for the first time, and its branching fraction is measured relative to that of the B
−→Λ
c
+p¯π
− mode.
KW - B Physics
KW - Branching fraction
KW - Hadron-Hadron Scattering
KW - Heavy Quark Production
U2 - 10.1007/JHEP08(2024)132
DO - 10.1007/JHEP08(2024)132
M3 - Article
SN - 1029-8479
VL - 2024
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 8
M1 - 132
ER -