5–12 Jul 2017
Venice, Italy
Europe/Zurich timezone
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Search for the $B$-meson decay to four baryons $B \to p \bar{p} p \bar{p}$ at BaBar

Not scheduled
1m
Salone Adriatico (Palazzo del Casinò)

Salone Adriatico

Palazzo del Casinò

Board: FL-23
Poster Presentation Flavour Physics and Fundamental Symmetries Poster session

Speakers

Laura Zani (INFN - National Institute for Nuclear Physics) Laura Zani

Description

B mesons are the lightest mesons which can decay to various final states containing different baryons. Up to now, the discrepancy between the inclusive branching fraction of all B meson decay modes with at least a couple of baryons in the final state, measured by ARGUS to be (6.8+−0.6)% , and the sum of exclusive baryonic channels, averaged on neutral and positive B mesons at less than 1%, represents an open issue. The measurement and comparison of exclusive branching fractions of baryonic B decays as well as studies on the dynamic of the decay, may allow better understanding of baryon production in B decays and, more generally, hadron fragmentation into baryons. We present here a search for the decay of a B meson in four baryons: B→pp¯pp¯ , not yet observed.
The data set consists of about 470 million BB¯ pairs collected with the BaBar detector at the SLAC National Accelerator Laboratory.

Presentation materials