English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the decays B0 to J/psi pi+pi- and B+ to J/psi pi+pi0, includingintermediate resonances, using a sample of 382 million BBbar pairs recorded bythe BaBar detector at the PEP-II e+e- B factory. We measure the branchingfractions B(B0 ->J/psi rho0) = (2.7 +/- 0.3 +/- 0.17) x 10-5 and B(B+ ->J/psirho+) = (5.0 +/- 0.7 +/-0.31) x 10-5.  We also set the following upper limits at the 90% confidence level: B(B0 ->J/psi pi+ \pi- non-resonant) < 1.2 x 10-5, B(B0 -> J/psi f_2(1270)) < 4.6 x10-6, and B(B+ -> J/psi pi+ pi0 non-resonant) < 4.4 x 10-6. We measure thecharge asymmetry in charged B decays to J/psi rho to be -0.11 +/- 0.12 +/-0.08.

Branching fraction and charge asymmetry measurements in B to J/psi pi pi decays