Search for the semileptonic decay D0(+) → b1 (1235)-(0)e+ve

• Using 2.93  fb−1 of e+e− annihilation data collected at a center-of-mass energy √s=3.773  GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic D0(+) decays into a b1(1235)−(0) axial-vector meson for the first time. No significant signal is observed for either charge combination. The upper limits on the product branching fractions are BD0→b1(1235)−e+νe ⋅ Bb1(1235)− →ωπ− <1.12×10−4 and BD+→b1(1235)0e+νe ⋅ Bb1(1235)0→ωπ0 <1.75×10−4 at the 90% confidence level.

Ämnesord

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

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