BibTex format
@article{Aaij:2025:10.1103/3pcs-dxtn,
author = {Aaij, R and Abdelmotteleb, ASW and Abellan, Beteta C and Abudinén, F and Ackernley, T and Adefisoye, AA and Adeva, B and Adinolfi, M and Adlarson, P and Agapopoulou, C and Aidala, CA and Ajaltouni, Z and Akar, S and Akiba, K and Albicocco, P and Albrecht, J and Aleksiejunas, R and Alessio, F and Alvarez, Cartelle P and Amalric, R and Amato, S and Amey, JL and Amhis, Y and An, L and Anderlini, L and Andersson, M and Andreola, P and Andreotti, M and Andres, Estrada S and Anelli, A and Ao, D and Arata, C and Archilli, F and Areg, Z and Argenton, M and Arguedas, Cuendis S and Arnone, L and Artamonov, A and Artuso, M and Aslanides, E and Da, Silva RA and Atzeni, M and Audurier, B and Authier, JA and Bacher, D and Bachiller, Perea I and Bachmann, S and Bachmayer, M and Back, JJ and Baladron, Rodriguez P and Balagura, V and Balboni, A and Baldini, W and Baldwin, Z and Balzani, L and Bao, H and Souza, Leite JB and Barbero, Pretel C and Barbetti, M and Barbosa, IR and Barlow, RJ and Barnyakov, },
doi = {10.1103/3pcs-dxtn},
journal = {Physical Review Letters},
title = {First Observation of the Charmless Baryonic Decay B+ → Λ ¯ p p ¯ p},
url = {http://dx.doi.org/10.1103/3pcs-dxtn},
volume = {135},
year = {2025}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - A search for the charmless baryonic decay B+→Λ¯pp¯p is performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb-1. The branching fraction for this decay is measured for the first time relative to that of the topologically similar decay B+→J/ψK+, with J/ψ→Λ¯pK-. The branching fraction is measured to be B(B+→Λ¯pp¯p)=(2.15±0.35±0.12±0.28)×10-7, where the first uncertainty is statistical, the second is systematic, and the third arises from the uncertainty in the normalization channel branching fraction. The CP asymmetry is measured to be ACP=(5.4±15.6±2.4)%, where the uncertainties are statistical and systematic. The background-subtracted invariant-mass distributions of Λ¯p and p¯p pairs exhibit pronounced enhancements at both kinematic thresholds, in contrast to a uniform phase-space distribution.
AU - Aaij,R
AU - Abdelmotteleb,ASW
AU - Abellan,Beteta C
AU - Abudinén,F
AU - Ackernley,T
AU - Adefisoye,AA
AU - Adeva,B
AU - Adinolfi,M
AU - Adlarson,P
AU - Agapopoulou,C
AU - Aidala,CA
AU - Ajaltouni,Z
AU - Akar,S
AU - Akiba,K
AU - Albicocco,P
AU - Albrecht,J
AU - Aleksiejunas,R
AU - Alessio,F
AU - Alvarez,Cartelle P
AU - Amalric,R
AU - Amato,S
AU - Amey,JL
AU - Amhis,Y
AU - An,L
AU - Anderlini,L
AU - Andersson,M
AU - Andreola,P
AU - Andreotti,M
AU - Andres,Estrada S
AU - Anelli,A
AU - Ao,D
AU - Arata,C
AU - Archilli,F
AU - Areg,Z
AU - Argenton,M
AU - Arguedas,Cuendis S
AU - Arnone,L
AU - Artamonov,A
AU - Artuso,M
AU - Aslanides,E
AU - Da,Silva RA
AU - Atzeni,M
AU - Audurier,B
AU - Authier,JA
AU - Bacher,D
AU - Bachiller,Perea I
AU - Bachmann,S
AU - Bachmayer,M
AU - Back,JJ
AU - Baladron,Rodriguez P
AU - Balagura,V
AU - Balboni,A
AU - Baldini,W
AU - Baldwin,Z
AU - Balzani,L
AU - Bao,H
AU - Souza,Leite JB
AU - Barbero,Pretel C
AU - Barbetti,M
AU - Barbosa,IR
AU - Barlow,RJ
AU - Barnyakov,M
AU - Barsuk,S
AU - Barter,W
AU - Bartz,J
AU - Bashir,S
AU - Batsukh,B
AU - Battista,PB
AU - Bay,A
AU - Beck,A
AU - Becker,M
AU - Bedeschi,F
AU - Bediaga,IB
AU - Behling,NA
AU - Belin,S
AU - Bellavista,A
AU - Belous,K
AU - Belov,I
AU - Belyaev,I
AU - Benane,G
AU - Bencivenni,G
AU - Ben-Haim,E
AU - Berezhnoy,A
AU - Bernet,R
AU - Bernet,Andres S
AU - Bertolin,A
AU - Betancourt,C
AU - Betti,F
AU - Bex,J
AU - Bezshyiko,I
AU - Bezshyyko,O
AU - Bhom,J
AU - Bieker,MS
AU - Biesuz,NV
AU - Billoir,P
AU - Biolchini,A
AU - Birch,M
AU - Bishop,FCR
AU - Bitadze,A
AU - Bizzeti,A
DO - 10.1103/3pcs-dxtn
PY - 2025///
SN - 0031-9007
TI - First Observation of the Charmless Baryonic Decay B+ → Λ ¯ p p ¯ p
T2 - Physical Review Letters
UR - http://dx.doi.org/10.1103/3pcs-dxtn
VL - 135
ER -