Pathways to Rare BaryonicBDecays

2000/08/09 by Wei-Shu Hou, A. Soni · 101 citations
Physics and Astronomy · #Baryon #High-Energy Particle Collisions Research #Lambda #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ph

paper · pdf · doi:10.1103/physrevlett.86.4247

published in Physical Review Letters 86(19), 4247-4250 (American Physical Society) · 12 pages, REVTEX, 3 eps figures included

arxiv created 2000/08/09 · openalex publication_date 2001/05/07 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We point out new ways to search for charmless baryonic B decays and suggest that enhanced baryon production is favored by reduced energy release on the baryon side. Thus B\ensuremath→\ensuremathη^\ensuremath'+baryonpairs might be larger than K\ensuremathπ/\ensuremathπ\ensuremathπ modes; the argument may be extended to B\ensuremath→\ensuremathγ+X_s, and perhaps to \ensuremathℓ\ensuremathν+X_u. Guess estimates give some branching ratios in the 10^\ensuremath-3-- 10^\ensuremath-6 range, with confidence gained from the recent observation of B\ensuremath→D^*pn, D^*pp\ensuremathπ not far below D^*\ensuremathπ and D^*\ensuremathρ rates. Observation of modes proposed here would help clarify the dynamics of weak decays involving baryons, while the self-analyzing prowess of \ensuremathΛ decay can be helpful in CP- and T-violation studies.

Citations

• Enhancedb→sgDecay, Inclusiveη′Production, and the Gluon Anomaly
• Study of semileptonic decays ofBmesons to charmed baryons
• Heavy baryon production and decay

Cited by

• Identifying glueball at 3.02 GeV in baryonic B decays
• Study of the decay mechanism for B+→pp¯K+ and B+→pp¯π+
• Measurements of the decaysB0→D¯0pp¯,B0→D¯*0pp¯,B0→D−pp¯π+, andB0→D*−pp¯π+
• Evidence for semileptonicB−→pp¯ℓ−ν¯ℓdecays