Journal article icon

Journal article

Improved measurement of branching fractions for ππ transitions among Υ(nS) states

Abstract:
Using samples of (5.93±0.10)×106 Υ(3S) decays and (9.11±0.14)×106 Υ(2S) decays collected with the CLEO detector, we report improved measurements of the following branching fractions: B(Υ(3S)→Υ(1S)π+π-)=(4.46±0.01±0.13)%, B(Υ(2S)→Υ(1S)π+π-)=(18.02±0.02±0.61)%, B(Υ(3S)→Υ(1S)π0π0)=(2.24±0.09±0.11)%, B(Υ(2S)→Υ(1S)π0π0)=(8.43±0.16±0.42)%, and B(Υ(3S)→Υ(2S)π0π0)=(1.82±0.09±0.12)%. In each case, the first uncertainty reported is statistical, while the second is systematic. © 2009 The American Physical Society.

Actions


Access Document


Publisher copy:
10.1103/PhysRevD.79.011103

Authors


Journal:
Physical Review D More from this journal
Volume:
79
Issue:
1
Publication date:
2009-01-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Language:
English
Pubs id:
pubs:161096
UUID:
uuid:8c4568d0-06db-4074-9be9-a00e2763f927
Local pid:
pubs:161096
Source identifiers:
161096
Deposit date:
2013-11-16

Terms of use


Views and Downloads






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

TO TOP