- Main
Search for B-→ Λ p ν ν with the B a B ar experiment SEARCH for B-→ Λ p ν ν ... LEES J. P. et al.
- Author(s): Lees, JP
- Poireau, V
- Tisserand, V
- Grauges, E
- Palano, A
- Eigen, G
- Brown, DN
- Kolomensky, YG
- Fritsch, M
- Koch, H
- Schroeder, T
- Cheaib, R
- Hearty, C
- Mattison, TS
- McKenna, JA
- So, RY
- Blinov, VE
- Buzykaev, AR
- Druzhinin, VP
- Golubev, VB
- Kozyrev, EA
- Kravchenko, EA
- Onuchin, AP
- Serednyakov, SI
- Skovpen, YI
- Solodov, EP
- Todyshev, KY
- Lankford, AJ
- Dey, B
- Gary, JW
- Long, O
- Eisner, AM
- Lockman, WS
- Panduro Vazquez, W
- Chao, DS
- Cheng, CH
- Echenard, B
- Flood, KT
- Hitlin, DG
- Kim, J
- Li, Y
- Miyashita, TS
- Ongmongkolkul, P
- Porter, FC
- Röhrken, M
- Huard, Z
- Meadows, BT
- Pushpawela, BG
- Sokoloff, MD
- Sun, L
- Smith, JG
- Wagner, SR
- Bernard, D
- Verderi, M
- Bettoni, D
- Bozzi, C
- Calabrese, R
- Cibinetto, G
- Fioravanti, E
- Garzia, I
- Luppi, E
- Santoro, V
- Calcaterra, A
- De Sangro, R
- Finocchiaro, G
- Martellotti, S
- Patteri, P
- Peruzzi, IM
- Piccolo, M
- Rotondo, M
- Zallo, A
- Passaggio, S
- Patrignani, C
- Lacker, HM
- Bhuyan, B
- Mallik, U
- Chen, C
- Cochran, J
- Prell, S
- Gritsan, AV
- Arnaud, N
- Davier, M
- Le Diberder, F
- Lutz, AM
- Wormser, G
- Lange, DJ
- Wright, DM
- Coleman, JP
- Gabathuler, E
- Hutchcroft, DE
- Payne, DJ
- Touramanis, C
- Bevan, AJ
- Di Lodovico, F
- Sacco, R
- Cowan, G
- Banerjee, S
- Brown, DN
- Davis, CL
- Denig, AG
- et al.
Published Web Location
https://doi.org/10.1103/PhysRevD.100.111101Abstract
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. A search for the rare flavor-changing neutral current process B-→Λpνν using data from the BABAR experiment has been performed. A total of 424 fb-1 of e+e-collision data collected at the center-of-mass energy of the Ï'(4S) resonance is used in this study, corresponding to a sample of (471±3)×106 BB pairs. Signal B-→Λpνν candidates are identified by first fully reconstructing a B+ decay in one of many possible exclusive decays to hadronic final states, then examining detector activity that is not associated with this reconstructed B+ decay for evidence of a signal B-→Λpνν decay. The data yield is found to be consistent with the expected background contribution under a null signal hypothesis, resulting in an upper limit of B(B-→Λpνν)<3.0×10-5 at the 90% confidence level.