- Main
Observation of the decay B̄0→Λc+p̄π0
- Author(s): Aubert, B
- Karyotakis, Y
- Lees, JP
- Poireau, V
- Prencipe, E
- Prudent, X
- Tisserand, V
- Garra Tico, J
- Grauges, E
- Martinelli, M
- Palano, A
- Pappagallo, M
- Eigen, G
- Stugu, B
- Sun, L
- Battaglia, M
- Brown, DN
- Hooberman, B
- Kerth, LT
- Kolomensky, YG
- Lynch, G
- Osipenkov, IL
- Tackmann, K
- Tanabe, T
- Hawkes, CM
- Soni, N
- Watson, AT
- Koch, H
- Schroeder, T
- Asgeirsson, DJ
- Hearty, C
- Mattison, TS
- McKenna, JA
- Barrett, M
- Khan, A
- Randle-Conde, A
- Blinov, VE
- Bukin, AD
- Buzykaev, AR
- Druzhinin, VP
- Golubev, VB
- Onuchin, AP
- Serednyakov, SI
- Skovpen, YI
- Solodov, EP
- Todyshev, KY
- Bondioli, M
- Curry, S
- Eschrich, I
- Kirkby, D
- Lankford, AJ
- Lund, P
- Mandelkern, M
- Martin, EC
- Stoker, DP
- Atmacan, H
- Gary, JW
- Liu, F
- Long, O
- Vitug, GM
- Yasin, Z
- Sharma, V
- Campagnari, C
- Hong, TM
- Kovalskyi, D
- Mazur, MA
- Richman, JD
- Beck, TW
- Eisner, AM
- Heusch, CA
- Kroseberg, J
- Lockman, WS
- Martinez, AJ
- Schalk, T
- Schumm, BA
- Seiden, A
- Wang, L
- Winstrom, LO
- Cheng, CH
- Doll, DA
- Echenard, B
- Fang, F
- Hitlin, DG
- Narsky, I
- Ongmongkolkul, P
- Piatenko, T
- Porter, FC
- Andreassen, R
- Mancinelli, G
- Meadows, BT
- Mishra, K
- Sokoloff, MD
- Bloom, PC
- Ford, WT
- Gaz, A
- Hirschauer, JF
- Nagel, M
- Nauenberg, U
- Smith, JG
- Wagner, SR
- et al.
Abstract
In a sample of 467×106 BB̄ pairs collected with the BABAR detector at the PEP-II collider at SLAC we have observed the decay B̄0→Λc+p̄π0 and measured the branching fraction to be (1.94±0.17±0.14±0.50)×10-4, where the uncertainties are statistical, systematic, and the uncertainty on the Λc+→pK-π+ branching fraction, respectively. We determine an upper limit of 1.5×10-6 at 90% C.L. for the product branching fraction B(B̄0→Σc+(2455)p̄) ×B(Λc+→pK-π+). Furthermore, we observe an enhancement at the threshold of the invariant mass of the baryon-antibaryon pair. © 2010 The American Physical Society.
Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.