Phenomenological model for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi><mml:msup><mml:mi>γ</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:mi>K</mml:mi><mml:msup><mml:mover accent="true"><mml:mi>K</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover><mml:mo>*</mml:mo></mml:msup><mml:mo stretchy="false">(</mml:mo><mml:mn>892</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> constraining the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>f</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>1420</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> transition form factor-Reference-Cited by-同舟云学术

Phenomenological model for γγ*→KK¯*(892) constraining the f1(1420) transition form factor

Published:2024-09-04 Issue:5 Volume:110 Page:
ISSN:2470-0010
Container-title:Physical Review D
language:en
Short-container-title:Phys. Rev. D

Author:

Ren Xiu-Lei¹^ORCID,Danilkin Igor²^ORCID,Vanderhaeghen Marc²^ORCID

Affiliation:

1. Helmholtz Institut Mainz

2. Johannes Gutenberg Universität

Abstract

We present a phenomenological study of the γγ*→KK¯*(892) process by including the s-channel production of the η(1475) and f1(1420) resonances. The nonresonant channel via K- and K*-exchanges is investigated carefully by performing the Lorentz tensor decomposition and is constructed to yield a correct high-energy Regge behavior. The transition form factor of f1(1420) is adjusted to achieve a reasonable description of the existing L3 data in the f1(1420) resonance region. This model is intended to serve as a Monte Carlo generator for the analysis currently being performed by the BESIII Collaboration. We also estimate the polarized γγ*→KK¯*(892) cross sections and demonstrate how to extract the transition form factors of f1(1420) from the polarized cross sections.

Published by the American Physical Society

2024

Funder

Deutsche Forschungsgemeinschaft

Publisher

American Physical Society (APS)

Link

http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevD.110.054004/fulltext

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