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 report the observation of the flavor-changing neutral current process b--> d gamma using a sample of 386*10^6 B meson pairs accumulated by the Belledetector at the KEKB e+ e- collider. We measure branching fractions for theexclusive modes B- --> rho- gamma, B0bar --> rho0 gammaand B0bar --> omegagamma. Assuming that these three modes are related by isospin, we find Br(B -->(rho,omega) gamma) = (1.32 +0.34-0.31(stat.) +0.10-0.09(syst.)) * 10^-6 with asignificance of 5.1 sigma. This result is used to determine the ratio of CKMmatrix elements |V_td/V_ts| to be 0.199 +0.026-0.025(exp.) +0.018-0.015(theo.).Comment: 5 pages, 2 figures, submitted to Physical Review Letter

physical review letters

Observation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>b</mml:mi><mml:mo>→</mml:mo><mml:mi>d</mml:mi><mml:mi>γ</mml:mi></mml:math>and Determination of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo stretchy="false">|</mml:mo><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mi>t</mml:mi><mml:mi>d</mml:mi></mml:mrow></mml:msub><mml:mo>/</mml:mo><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mi>t</mml:mi><mml:mi>s</mml:mi></mml:mrow…

Observation ofb→dγand Determination of|Vtd/Vts