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Measurements of B -˃ (D)over-barDs0*(+)(2317) decay rates and a search for isospin partners of the Ds0*(+)(2317)

Title
Measurements of B -˃ (D)over-barDs0*(+)(2317) decay rates and a search for isospin partners of the Ds0*(+)(2317)
Author
천병구
Keywords
QUARK-MODEL; HEAVY MESONS; D-S0(+)(2317); SPECTRUM
Issue Date
2015-05
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 91, NO 9, Page. 92011-92011
Abstract
We report improved measurements of the product branching fractions B(B+ --˃ (D) over bar D-0(s0)*(+)(2317)) x B(D-s0*(+)(2317) --˃ D-s(+) pi(0)) (8.0(-1.2)(+1.3) +/- 1.1 +/- 0.4) x 10(-4) and B(B-0 --˃ D-Ds0*(+)(2317)) x B(D-s0*(+)(2317)) --˃ D-s(+) pi(0)) = (10.2(-1.2)(+1.3) +/- 1.0 +/- 0.4) x 10(-4) where the first errors are statistical, the second are systematic and the third are from D and D-s(+) branching fractions. In addition, we report negative results from a search for hypothesized neutral (z(0)) and doubly charged (z(++)) isospin partners of the D-s0*(+)(2317) and provide upper limits on the product branching fractions B(B-0 --˃ D(0)z(0)) x B(z(0) --˃ D-s(+)pi(-)) and B(B+ --˃ D(0)z(++) ) x B(z(++) --˃ D-s(+)pi(+)) that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the D-s0(*+)(2317) is a member of an isospin triplet. The analysis uses a 711 fb(-1) data sample containing 772 million B (B) over bar -meson pairs collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider.
URI
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.092011http://hdl.handle.net/20.500.11754/24421
ISSN
1550-7998; 1550-2368
DOI
10.1103/PhysRevD.91.092011
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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