TY - JOUR AU - BABAR Collaboration (Aubert, B. et al AU - Azzolini, V. AU - Lopez-March, N. AU - Martinez-Vidal, F. AU - Milanes, D. A. AU - Oyanguren, A. PY - 2010 DA - 2010// TI - Observation of the decay (B)over-bar(0) -> Lambda(+)(c)(p)over-bar pi(0) T2 - Phys. Rev. D JO - Physical Review D SP - 031102 EP - 8pp VL - 82 IS - 3 PB - Amer Physical Soc AB - In a sample of 467 x 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP- II collider at SLAC we have observed the decay (B) over bar (0) -> Lambda(+)(c)(p) over bar pi(0) and measured the branching fraction to be (1.94 +/- 0.17 +/- 0.14 +/- 0.50 x 10(-4), where the uncertainties are statistical, systematic, and the uncertainty on the Lambda(+)(c) -> pK(-)pi(+) branching fraction, respectively. We determine an upper limit of 1.5 x 10(-6) at 90% C.L. for the product branching fraction B((B) over bar (0) -> Sigma(+)(c) (2455)(p) over bar) x B(Lambda(+)(c) -> pK(-) pi(+)). Furthermore, we observe an enhancement at the threshold of the invariant mass of the baryon- antibaryon pair. SN - 1550-7998 UR - http://fr.arxiv.org/abs/1007.1370 UR - https://doi.org/10.1103/PhysRevD.82.031102 DO - 10.1103/PhysRevD.82.031102 LA - English N1 - ISI:000281226800001 ID - BABARCollaborationAubert_etal2010 ER -