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.

Язык оригиналаанглийский
Номер статьи071102
Число страниц7
ЖурналPhysical Review D
Номер выпуска7
СостояниеОпубликовано - 23 окт 2018


Подробные сведения о темах исследования «Search for the decay mode B0 →pp p ̄ p ̄ SEARCH for the DECAY MODE ... J. P. LEES et al.». Вместе они формируют уникальный семантический отпечаток (fingerprint).