A search is presented for the four-body decay B0→ppp̄p̄ in a sample of 471 million BB̄ pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e+e- collider. The center-of-mass energy is 10.58 GeV. From a fit to the distribution of the energy-substituted mass mES, the branching fraction B(B0→ppp̄p̄)=(1.1±0.5±0.2)×10-7 is extracted, where the first uncertainty is statistical and the second is systematic. The significance of the signal, including the systematic uncertainty, is 2.9 standard deviations. The upper limit on the branching fraction is determined to be 2.0×10-7 at 90% confidence level.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2018). Search for the decay mode B0 →pp p ̄ p ̄ SEARCH for the DECAY MODE ... J. P. LEES et al. PHYSICAL REVIEW D, 98(7) [10.1103/PhysRevD.98.071102].

Search for the decay mode B0 →pp p ̄ p ̄ SEARCH for the DECAY MODE ... J. P. LEES et al

Carpinelli M.;
2018

Abstract

A search is presented for the four-body decay B0→ppp̄p̄ in a sample of 471 million BB̄ pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e+e- collider. The center-of-mass energy is 10.58 GeV. From a fit to the distribution of the energy-substituted mass mES, the branching fraction B(B0→ppp̄p̄)=(1.1±0.5±0.2)×10-7 is extracted, where the first uncertainty is statistical and the second is systematic. The significance of the signal, including the systematic uncertainty, is 2.9 standard deviations. The upper limit on the branching fraction is determined to be 2.0×10-7 at 90% confidence level.
Articolo in rivista - Articolo scientifico
BaBar
English
2018
98
7
071102
none
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2018). Search for the decay mode B0 →pp p ̄ p ̄ SEARCH for the DECAY MODE ... J. P. LEES et al. PHYSICAL REVIEW D, 98(7) [10.1103/PhysRevD.98.071102].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/395247
Citazioni
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 5
Social impact