TY - JOUR
T1 - Observation of ᴧ
b
0→ ᴧ
c
+ D̄
(*)0K
− and ᴧ
b
0→ ᴧ
c
+ D
s
*− decays
AU - Aaij, R.
AU - Abdelmotteleb, A. S.W.
AU - Beteta, C. Abellan
AU - Abudinén, F.
AU - Ackernley, T.
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 - Alfonso Albero, A.
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 - 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 - Baptista de Souza Leite, J.
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 - 2024/6/1
Y1 - 2024/6/1
N2 - The decays Λ
b
0→Λ
c
+D¯
(∗)0K
- and Λ
b
0→Λ
c
+D
s
∗- are observed for the first time, in proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 5.4fb
-1 collected with the LHCb detector. Their ratios of branching fractions with respect to the Λ
b
0→Λ
c
+D
s
- mode are measured to be (Formula presented.) where the first uncertainties are statistical, the second systematic, and the third, for the Λ
b
0→Λ
c
+D¯
(∗)0K
- decays, are due to the uncertainties on the branching fractions of the D
s
-→K
-K
+π
- and D¯
0→K
+π
- decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in Λ
b
0→Λ
c
+D¯
(∗)0K
- decay channels.
AB - The decays Λ
b
0→Λ
c
+D¯
(∗)0K
- and Λ
b
0→Λ
c
+D
s
∗- are observed for the first time, in proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 5.4fb
-1 collected with the LHCb detector. Their ratios of branching fractions with respect to the Λ
b
0→Λ
c
+D
s
- mode are measured to be (Formula presented.) where the first uncertainties are statistical, the second systematic, and the third, for the Λ
b
0→Λ
c
+D¯
(∗)0K
- decays, are due to the uncertainties on the branching fractions of the D
s
-→K
-K
+π
- and D¯
0→K
+π
- decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in Λ
b
0→Λ
c
+D¯
(∗)0K
- decay channels.
U2 - 10.1140/epjc/s10052-024-12752-3
DO - 10.1140/epjc/s10052-024-12752-3
M3 - Article
SN - 1434-6044
VL - 84
JO - European Physical Journal C
JF - European Physical Journal C
IS - 6
M1 - 575
ER -