First observation of anti-B ---> D(*) rho-prime-, rho-prime- ---> omega pi- - INSPIRE

DataBETA

First observation of anti-B ---> D(*) rho-prime-, rho-prime- ---> omega pi-

CLEO

Collaboration

•

J.P. Alexander
(
- Cornell U., Phys. Dept.
)

Mar, 2001

42 pages

Published in:

Phys.Rev.D 64 (2001) 092001

e-Print:

hep-ex/0103021 [hep-ex]

DOI:

10.1103/PhysRevD.64.092001

PDG:

{{\mathit \omega}}{{\mathit \pi}}

Report number:

CLNS-01-1724,
CLEO-01-05

Experiments:

CESR-CLEO-II

View in:

ADS Abstract Service

reference search38 citations

Citations per year

Abstract: (arXiv)

We report on the observation of B-> D(*) pi+ pi- pi- pi^o decays. The branching ratios for D*+ and D*o are (1.72+/-0.14+/-0.24)% and (1.80+/-0.24+/-0.27)%, respectively. Each final state has a D* omega pi- component, with branching ratios (0.29+/-0.03+/-0.04)% and (0.45+/-0.10+/-0.07)% for the D*+ and D*o modes, respectively. We also observe B -> D omega pi- decays. The branching ratios for D+ and Do are (0.28+/-0.05+/-0.04)% and (0.41+/-0.07+/-0.06)%, respectively. A spin parity analysis of the D omega pi- final state prefers a wide 1^- resonance. A fit to the omega pi- mass spectrum finds a central mass of (1349+/-25^{+10}_{-5}) MeV and width of (547+/-86^{+46}_{-45}) MeV. We identify this object as the rho(1450) or the \rho'.

electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
anti-B: hadronic decay
D*(2010)
D
omega(783)
anti-B: branching ratio
spin: parity

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