Journal article icon

Journal article

Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics

Abstract:
With a sample of 232×106 Υ(4S)→BB̄ events collected with the BABAR detector, we study the decay B+→pp̄K+ excluding charmonium decays to pp̄. We measure a branching fraction B(B+→pp̄K+)=(6.7±0.5±0.4)×10-6. An enhancement at low pp̄ mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate Θ*++ decaying into pK+ in the mass range 1.43 to 2.00GeV/c2 and set limits on B(B+→Θ*++p̄)×B(Θ*++→pK+) at the 10-7 level. © 2005 The American Physical Society.
Publication status:
Published

Actions


Access Document


Publisher copy:
10.1103/PhysRevD.72.051101

Authors


Boutigny, D More by this author
Couderc, F More by this author
Karyotakis, Y More by this author
Expand authors...
Journal:
PHYSICAL REVIEW D
Volume:
72
Issue:
5
Publication date:
2005-09-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:6be9823a-72d2-4bd1-b7a2-a3f33465a441
Source identifiers:
23357
Local pid:
pubs:23357
Language:
English

Terms of use


Metrics



If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP