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Title: Branching fraction limits for b0 decays to eta-prime eta, eta-prime pi0 and eta pi0

Abstract

No abstract prepared.

Authors:
;
Publication Date:
Research Org.:
COLLABORATION - SLAC
OSTI Identifier:
893614
Report Number(s):
LBNL-60597; SLAC-PUB-11735,BABAR-PUB-06-004
R&D Project: PBAOPS; TRN: US0606034
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D; Journal Volume: 73; Related Information: Journal Publication Date: 2006
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B NEUTRAL MESONS; PARTICLE DECAY; BRANCHING RATIO; LIMITING VALUES; PIONS NEUTRAL; ETA MESONS

Citation Formats

Augert, B., and BaBar Collaboration. Branching fraction limits for b0 decays to eta-prime eta, eta-prime pi0 and eta pi0. United States: N. p., 2006. Web.
Augert, B., & BaBar Collaboration. Branching fraction limits for b0 decays to eta-prime eta, eta-prime pi0 and eta pi0. United States.
Augert, B., and BaBar Collaboration. Wed . "Branching fraction limits for b0 decays to eta-prime eta, eta-prime pi0 and eta pi0". United States. doi:.
@article{osti_893614,
title = {Branching fraction limits for b0 decays to eta-prime eta, eta-prime pi0 and eta pi0},
author = {Augert, B. and BaBar Collaboration},
abstractNote = {No abstract prepared.},
doi = {},
journal = {Physical Review D},
number = ,
volume = 73,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}
  • We describe searches for decays to two-body charmless final states {eta}'{eta}, {eta}'{pi}{sup 0} and {eta}{pi}{sup 0} of B{sup 0} mesons produced in e{sup +}e{sup -} annihilation. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 232 million produced B{bar B} pairs. The results for branching fractions are, in units of 10{sup -6} (upper limits at 90% C.L.): {Beta}(B{sup 0} {yields} {eta}'{eta}) = 0.2{sub -0.5}{sup +0.7} {+-} 0.4 (< 1.7), {Beta}(B{sup 0} {yields} {eta}{pi}{sup 0}) = 0.6{sub -0.4}{sup +0.5} {+-} 0.1 (< 1.3), and {Beta}(B{sup 0} {yields} {eta}'{pi}{sup 0}) = 0.8{sub -0.6}{sup +0.8} {+-} 0.1 (<more » 2.1). The first error quoted is statistical and the second systematic.« less
  • No abstract prepared.
  • We describe searches for decays to two-body charmless final states {eta}{sup '}{eta}, {eta}{sup '}{pi}{sup 0} and {eta}{pi}{sup 0} of B{sup 0} mesons produced in e{sup +}e{sup -} annihilation. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 232x10{sup 6} produced BB pairs. The results for branching fractions are, in units of 10{sup -6} (upper limits at 90% C.L.): B(B{sup 0}{yields}{eta}{sup '}{eta})=0.2{sub -0.5}{sup +0.7}{+-}0.4(<1.7), B(B{sup 0}{yields}{eta}{pi}{sup 0})=0.6{sub -0.4}{sup +0.5}{+-}0.1(<1.3), and B(B{sup 0}{yields}{eta}{sup '}{pi}{sup 0})=0.8{sub -0.6}{sup +0.8}{+-}0.1(<2.1). The first error quoted is statistical and the second systematic.
  • We report updated branching fraction measurements of the color-suppressed decays {bar B}{sup 0} {yields} D{sup 0}{pi}{sup 0}, D*{sup 0}{pi}{sup 0}, D{sup 0}{eta}, D*{sup 0}{eta}, D{sup 0}{omega}, D*{sup 0}{omega}, D{sup 0}{eta}', and D*{sup 0}{eta}'. We measure the branching fractions (x10{sup -4}): {Beta}({bar B}{sup 0} {yields} D{sup 0}{pi}{sup 0}) = 2.69 {+-} 0.09 {+-} 0.13, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{pi}{sup 0}) = 3.05 {+-} 0.14 {+-} 0.28, {Beta}({bar B}{sup 0} {yields} D{sup 0}{eta}) = 2.53 {+-} 0.09 {+-} 0.11, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{eta}) = 2.69 {+-} 0.14 {+-} 0.23, {Beta}({bar B}{sup 0} {yields} D{sup 0}{omega}) = 2.57 {+-} 0.11more » {+-} 0.14, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{omega}) = 4.55 {+-} 0.24 {+-} 0.39, {Beta}({bar B}{sup 0} {yields} D{sup 0}{eta}') = 1.48 {+-} 0.13 {+-} 0.07, and {Beta}({bar B}{sup 0} {yields} D*{sup 0}{eta}') = 1.49 {+-} 0.22 {+-} 0.15. We also present the first measurement of the longitudinal polarization fraction of the decay channel D*{sup 0}{omega}, f{sub L} = (66.5 {+-} 4.7 {+-} 1.5)%. In the above, the first uncertainty is statistical and the second is systematic. The results are based on a sample of (454 {+-} 5) x 10{sup 6} B{bar B} pairs collected at the {Upsilon}(4S) resonance, with the BABAR detector at the PEP-II storage rings at SLAC. The measurements are the most precise determinations of these quantities from a single experiment. They are compared to theoretical predictions obtained by factorization, Soft Collinear Effective Theory (SCET) and perturbative QCD (pQCD). We find that the presence of final state interactions is favored and the measurements are in better agreement with SCET than with pQCD.« less
  • No abstract prepared.