Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The γ∗γ∗ → ηc(1S,2S) transition form factors for two spacelike photons

Babiarz, Izabela LU ; Goncalves, Victor P. LU ; Pasechnik, Roman LU ; Schäfer, Wolfgang and Szczurek, Antoni (2019) 2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019 In Proceedings of Science 364.
Abstract

We discuss γ∗γ∗ → ηc(1S), ηc(2S) transition form factors for both virtual photons. The general formula is given. We use different models for the cc¯ wave function obtained from the solution of the Schrödinger equation for different cc¯ potentials: harmonic oscillator, Cornell, logarithmic, power-law, Coulomb and Buchmüller-Tye. We showed some examples of wave functions in the Light Front representation as well as in the rest frame of cc¯ pair. We compare our results to the BaBar experimental data for ηc(1S), for one real and one virtual photon, and to the values collected by the Particle Data Group for F(0,0), decay width Γγγ and decay constant fηc. We also... (More)

We discuss γ∗γ∗ → ηc(1S), ηc(2S) transition form factors for both virtual photons. The general formula is given. We use different models for the cc¯ wave function obtained from the solution of the Schrödinger equation for different cc¯ potentials: harmonic oscillator, Cornell, logarithmic, power-law, Coulomb and Buchmüller-Tye. We showed some examples of wave functions in the Light Front representation as well as in the rest frame of cc¯ pair. We compare our results to the BaBar experimental data for ηc(1S), for one real and one virtual photon, and to the values collected by the Particle Data Group for F(0,0), decay width Γγγ and decay constant fηc. We also considered the non-relativistic limit for F(0,0) form factor with the wave function at the origin R(0).

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
European Physical Society Conference on High Energy Physics (EPS-HEP2019)
series title
Proceedings of Science
volume
364
article number
467
conference name
2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019
conference location
Ghent, Belgium
conference dates
2019-07-10 - 2019-07-17
external identifiers
  • scopus:85098911590
ISSN
1824-8039
DOI
10.22323/1.364.0467
language
English
LU publication?
yes
id
5ba48018-d2a3-47b9-bf4e-cd9449fded0a
date added to LUP
2021-01-18 14:32:57
date last changed
2024-03-21 02:29:26
@inproceedings{5ba48018-d2a3-47b9-bf4e-cd9449fded0a,
  abstract     = {{<p>We discuss γ<sup>∗</sup>γ<sup>∗</sup> → η<sub>c</sub>(1S), η<sub>c</sub>(2S) transition form factors for both virtual photons. The general formula is given. We use different models for the cc¯ wave function obtained from the solution of the Schrödinger equation for different cc¯ potentials: harmonic oscillator, Cornell, logarithmic, power-law, Coulomb and Buchmüller-Tye. We showed some examples of wave functions in the Light Front representation as well as in the rest frame of cc¯ pair. We compare our results to the BaBar experimental data for η<sub>c</sub>(1S), for one real and one virtual photon, and to the values collected by the Particle Data Group for F(0,0), decay width Γ<sub>γγ</sub> and decay constant f<sub>ηc</sub>. We also considered the non-relativistic limit for F(0,0) form factor with the wave function at the origin R(0).</p>}},
  author       = {{Babiarz, Izabela and Goncalves, Victor P. and Pasechnik, Roman and Schäfer, Wolfgang and Szczurek, Antoni}},
  booktitle    = {{European Physical Society Conference on High Energy Physics (EPS-HEP2019)}},
  issn         = {{1824-8039}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{The γ<sup>∗</sup>γ<sup>∗</sup> → η<sub>c</sub>(1S,2S) transition form factors for two spacelike photons}},
  url          = {{http://dx.doi.org/10.22323/1.364.0467}},
  doi          = {{10.22323/1.364.0467}},
  volume       = {{364}},
  year         = {{2019}},
}