Search for the semileptonic decay $D^{0(+)}\to b_1(1235)^{-(0)} e^+\nu_e$

Ablikim, Medina; Achasov, Mikhail N; Adlarson, Patrik Adlarsson; Ahmed, Samer Ali Nasher; Albrecht, Malte; Aliberti, Riccardo; Amoroso, Antonio; An, Qi; de Boer, Remco Emiel; Gao, Ya

doi:10.1103/PhysRevD.102.112005

Search for the semileptonic decay $D^{0(+)}\to b_1(1235)^{-(0)} e^+\nu_e$

BESIII

Collaboration

Aug 13, 2020

9 pages

Published in:

Phys.Rev.D 102 (2020) 11, 112005

Published: Dec 5, 2020

e-Print:

2008.05754 [hep-ex]

DOI:

10.1103/PhysRevD.102.112005

PDG:

{{\mathit D}^{+}}

\rightarrow

{{\mathit b}_{{{1}}}{(1235)}^{0}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}

,

{{\mathit b}_{{{1}}}^{0}}

\rightarrow

{{\mathit \omega}}{{\mathit \pi}^{0}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search21 citations

Citations per year

Abstract: (APS)

Using

2.93~\mathrm{fb}^{-1}

of

e^+e^-

annihilation data collected at a center-of-mass energy

\sqrt{s}=3.773

GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic

D^{0(+)}

decays into a

b_1(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

{\mathcal B}_{D^0\to b_1(1235)^- e^+\nu_e}\cdot {\mathcal B}_{b_1(1235)^-\to \omega\pi^-}<1.12\times 10^{-4}

and

{\mathcal B}_{D^+\to b_1(1235)^0 e^+\nu_e}\cdot {\mathcal B}_{b_1(1235)^0\to \omega\pi^0}<1.75\times 10^{-4}

at the 90\% confidence level.

Note:

9 pages, 3 figures

Particle Physics Experiments
electron positron: colliding beams
axial-vector meson
b1(1235): hadronic decay
D0: semileptonic decay
D+: semileptonic decay
D0: branching ratio
D+: branching ratio
branching ratio: upper limit
Beijing Stor

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Search for the semileptonic decay D0(+)→b1(1235)−(0)e+νeD^{0(+)}\to b_1(1235)^{-(0)} e^+\nu_eD0(+)→b1​(1235)−(0)e+νe​

Citations per year

Search for the semileptonic decay $D^{0(+)}\to b_1(1235)^{-(0)} e^+\nu_e$