Production of the charmoniumlike state Y(4220) through the $p\bar{p} \to Y(4220) \pi^0$ reaction - INSPIRE

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Production of the charmoniumlike state Y(4220) through the $p\bar{p} \to Y(4220) \pi^0$ reaction

Jun-Zhang Wang
(
- Lanzhou U. and
- Lanzhou, Inst. Modern Phys.
)
,
Hao Xu
(
- Lanzhou U. and
- Lanzhou, Inst. Modern Phys.
)
,
Ju-Jun Xie
(
- Lanzhou U. and
- Lanzhou, Inst. Modern Phys.
)
,
Xiang Liu
(
- Lanzhou U. and
- Lanzhou, Inst. Modern Phys.
)

Oct 24, 2017

7 pages

Published in:

Phys.Rev.D 96 (2017) 9, 094004

Published: Nov 10, 2017

e-Print:

1710.08738 [hep-ph]

DOI:

10.1103/PhysRevD.96.094004

View in:

ADS Abstract Service

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Abstract: (APS)

The Y(4220) production in the process of pp¯→Y(4220)π0 is studied within the effective Lagrangian approach. We first study the e+e-→Y(4220)→pp¯π0 reaction at center-of-mass energy 4.258 GeV with the assumption that the Y(4220) is a ψ(4S) state. We show that the inclusion of nucleon and nucleon resonance leads to a quite good description of the experimental data of π0p and π0p¯ invariant mass distributions. Then, the total and angular distributions of the pp¯→Y(4220)π0 reaction are investigated. It is shown that the nucleon pole is dominant but the contributions from excited nucleon resonances are non-negligible. The pp¯→Y(4220)π0 reaction is useful for studying the property of Y(4220) and our calculated results may be tested at the forthcoming P¯ANDA experiments.

Note:

7 pages, 6 figures and 1 table. More typos corrected. Accepted by Phys. Rev. D

effective Lagrangian
anti-p p: scattering
electron positron: scattering
charmonium: production
pi0: production
pi0: angular distribution
nucleon: pole
nucleon resonance: effect
anti-p p --> charmonium pi0

References(48)

Figures(7)

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