Published January 1, 2014 | Version v1
Journal article

Pion electromagnetic form factor in the Covariant Spectator Theory

  • 1. CFTP, Institute Superior Tecnico, Lisboa (Portugal)
  • 2. JLAB, Newport News, VA (United States)
  • 3. University of Evora, Lisboa (Portugal)

Description

The pion electromagnetic form factor at spacelike momentum transfer is calculated in relativistic impulse approximation using the Covariant Spectator Theory. The same dressed quark mass function and the equation for the pion bound-state vertex function as discussed in the companion paper are used for the calculation, together with a dressed quark current that satisfies the Ward-Takahashi identity. The results obtained for the pion form factor are in agreement with experimental data, they exhibit the typical monopole behavior at high momentum transfer and they satisfy some remarkable scaling relations

Availability note (English)

Available from: DOI:10.1103/PhysRevD.89.016006

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
89
Journal Issue
01
Journal Page Range
p. 016006
ISSN
0556-2821

Optional Information

Contract/Grant/Project number
AC05-06OR23177
Funding organization
USDOE Office of Science - SC (United States)
Secondary number(s)
JLAB-THY--13-1815; DOE/OR--23177-2872; OSTIID--1114219