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

Using data collected with the CLEO detector operating at the CESR e+e-collider at sqrt s = 3.97-4.26 GeV, we investigate 15 charmonium decay modes ofthe psi(4040), psi(4160), and Y(4260) resonances. We confirm, at 11$\sigma$significance, the BaBar Y(4260) --> pi+ pi- J/psi discovery, make the firstobservation of Y(4260) --> pi0 pi0 J/psi (5.1 sigma), and find the firstevidence for Y(4260) --> K+ K- J/psi (3.7 sigma). We measure e+e-cross-sections at sqrt s = 4.26 GeV as sigma(pi+ pi- J/psi) = 58 +12-10 +- 4pb, sigma(pi0 pi0 J/psi) = 23 +12 -8 +- 1 pb, and sigma(K+ K- J/psi) = 9 +9 -5+- 1 pb, in which the uncertainties are statistical and systematic,respectively. Upper limits are placed on other decay rates from all threeresonances.

physical review letters

Charmonium Decays of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Y</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4260</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4160</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</…

Charmonium Decays ofY(4260),ψ(4160), andψ