Search for a scalar partner of the $X(3872)$ via $\psi(3770)$ decays into $\gamma\eta\eta'$ and $\gamma\pi^{+}\pi^{-}J/\psi$

Ablikim, M.; Achasov, M.N.; Adlarson, P.; Ai, X.C.; Aliberti, R.; Amoroso, A.; An, M.R.; An, Q.; Bai, Y.; Bakina, O.

doi:10.1103/PhysRevD.108.052012

Search for a scalar partner of the $X(3872)$ via $\psi(3770)$ decays into $\gamma\eta\eta'$ and $\gamma\pi^{+}\pi^{-}J/\psi$

BESIII

Collaboration

May 19, 2023

12 pages

Published in:

Phys.Rev.D 108 (2023) 5, 052012

Published: Sep 1, 2023

e-Print:

2305.11682 [hep-ex]

DOI:

10.1103/PhysRevD.108.052012 (publication)

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

pdf

reference search5 citations

Citations per year

Abstract: (APS)

Using a data sample corresponding to an integrated luminosity of

2.93 {fb}^{- 1}

collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider, we search for a scalar partner of the

X (3872)

, denoted as

X (3700)

, via

ψ (3770) \to γ η η^{'}

and

γ π^{+} π^{-} J / ψ

processes. No significant signals are observed and the upper limits of the product branching fractions

B (ψ (3770) \to γ X (3700)) \cdot B (X (3700) \to η η^{'})

and

B (ψ (3770) \to γ X (3700)) \cdot B (X (3700) \to π^{+} π^{-} J / ψ)

are determined at the 90% confidence level, for the narrow

X (3700)

with a mass ranging from 3710 to

3740 MeV / c^{2}

, which are from 0.9 to

1.9 (\times 10^{- 5})

and 0.9 to

3.4 (\times 10^{- 5})

, respectively.

electron positron: annihilation
electron positron: colliding beams
psi(3770): electroproduction
psi(3770): radiative decay
eta(958)
eta
J/psi(3100)
pi: pair production
X(3872)
intermediate state

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Search for a scalar partner of the X(3872)X(3872)X(3872) via ψ(3770)\psi(3770)ψ(3770) decays into γηη′\gamma\eta\eta'γηη′ and γπ+π−J/ψ\gamma\pi^{+}\pi^{-}J/\psiγπ+π−J/ψ

Citations per year

Search for a scalar partner of the $X(3872)$ via $\psi(3770)$ decays into $\gamma\eta\eta'$ and $\gamma\pi^{+}\pi^{-}J/\psi$