Role of $Y(4630)$ in the $p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c$ reaction near threshold

Wang, Yan-Yan; Lü, Qi-Fang; Wang, En; li, De-Min

doi:10.1103/PhysRevD.94.014025

Role of $Y(4630)$ in the $p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c$ reaction near threshold

Yan-Yan Wang
(
- Zhengzhou U.
)
,
Qi-Fang Lü
(
- Beijing, Inst. High Energy Phys.
)
,
En Wang
(
- Zhengzhou U.
)
,
De-Min li
(
- Zhengzhou U.
)

Apr 6, 2016

5 pages

Published in:

Phys.Rev.D 94 (2016) 014025

Published: Jul 20, 2016

e-Print:

1604.01553 [hep-ph]

DOI:

10.1103/PhysRevD.94.014025

View in:

ADS Abstract Service

pdf

reference search14 citations

Citations per year

Abstract: (arXiv)

We investigate the charmed baryon production reaction

p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c

in an effective Lagrangian approach. Besides the

t

-channel

D^0

and

D^{*0}

mesons exchanges, the

s

-channel

Y(4630)

meson exchange is taken into account. For the total cross sections, the

D^0

and

D^{*0}

mesons provide minor background contributions, while the

Y(4630)

state gives a clear peak structure with the magnitude of 10

\mu

b at center of mass energy 4.63 GeV. Basing on the results, we suggest that the reaction of

p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c

can be used to search for the

1^{--}

charmonium-like

Y(4630)

state, and our predictions can be tested in future by the

\rm{\bar PANDA}

facility.

Note:

5 pages, 3figures

13.75.Cs
14.40.Pq
11.10.Ef
D0: exchange
D*(2010): exchange
charmed baryon: production
effective Lagrangian
total cross section
background
PANDA

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Role of Y(4630)Y(4630)Y(4630) in the ppˉ→ΛcΛˉcp\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_cppˉ​→Λc​Λˉc​ reaction near threshold

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Role of $Y(4630)$ in the $p\bar{p}\rightarrow\Lambda_c\bar{\Lambda}_c$ reaction near threshold