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Probing the structure of χc1 (3872) with photon transition form factors

Babiarz, Izabela ; Pasechnik, Roman LU ; Schäfer, Wolfgang and Szczurek, Antoni (2023) In Physical Review D 107(7).
Abstract

We propose studying the structure of the χc1(3872) axial vector meson through its γL∗γ→χc1(3872) transition form factor. We derive a light-front wave function representation of the form factor for the lowest cc¯ Fock state. We found that the reduced width of the state is well within the current experimental bound recently published by the Belle Collaboration. This strongly suggests a crucial role of the cc¯ Fock-state in the photon-induced production. Our results for the Q2 dependence can be tested by future single-tagged e+e- experiments, giving further insight into the short-distance structure of this meson.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D
volume
107
issue
7
article number
L071503
publisher
American Physical Society
external identifiers
  • scopus:85160549385
ISSN
2470-0010
DOI
10.1103/PhysRevD.107.L071503
language
English
LU publication?
yes
id
cf9c6b28-86ea-4c61-8356-9052314d81cb
date added to LUP
2023-08-23 10:44:13
date last changed
2023-08-23 10:44:13
@article{cf9c6b28-86ea-4c61-8356-9052314d81cb,
  abstract     = {{<p>We propose studying the structure of the χc1(3872) axial vector meson through its γL∗γ→χc1(3872) transition form factor. We derive a light-front wave function representation of the form factor for the lowest cc¯ Fock state. We found that the reduced width of the state is well within the current experimental bound recently published by the Belle Collaboration. This strongly suggests a crucial role of the cc¯ Fock-state in the photon-induced production. Our results for the Q2 dependence can be tested by future single-tagged e+e- experiments, giving further insight into the short-distance structure of this meson.</p>}},
  author       = {{Babiarz, Izabela and Pasechnik, Roman and Schäfer, Wolfgang and Szczurek, Antoni}},
  issn         = {{2470-0010}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{7}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D}},
  title        = {{Probing the structure of χc1 (3872) with photon transition form factors}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.107.L071503}},
  doi          = {{10.1103/PhysRevD.107.L071503}},
  volume       = {{107}},
  year         = {{2023}},
}