ITA
ENG

Measurement of the charged pion electromagnetic form factor

Authors

Volmer, J Abbott, D Anklin, H Armstrong, C Arrington, J Assamagan, K Avery, S Baker, OK Blok, HP Bochna, C Brash, EJ Breuer, H Chant, N Dunne, J Eden, T Ent, R Gaskell, D Gilman, R Gustafsson, K Hinton, W Huber, GM Jackson, H Jones, MK Keppel, C Kim, PH Kim, W Klein, A Koltenuk, D Liang, M Lolos, GJ Lung, A Mack, DJ McKee, D Meekins, D Mitchell, J Mkrtchyan, H Mueller, B Niculescu, G Niculescu, I Pitz, D Potterveld, D Qin, LM Reinhold, J Shin, IK Stepanyan, S Tadevosyan, V Tang, LG van der Meer, RLJ Vansyoc, K Van Westrum, D Vulcan, W Wood, S Yan, C Zhao, WX Zihlmann, B

Citation

J. Volmer et al., Measurement of the charged pion electromagnetic form factor, PHYS REV L, 86(9), 2001, pp. 1713-1716

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW LETTERS

ISSN journal

00319007 → ACNP

Volume

Issue

Year of publication

2001

Pages

1713 - 1716

Database

ISI

SICI code

0031-9007(20010226)86:9<1713:MOTCPE>2.0.ZU;2-3

Abstract

Separated longitudinal and transverse structure functions for the reaction H-1(e,e(1)pi (+))n were measured in the momentum transfer region Q(2) = 0.6 -1.6 (GeV/c)(2) at a value of the invariant mass W = 1.95 GeV. New values f or the pion charge form factor were extracted from the longitudinal cross s ection by using a recently developed Regge model. The results indicate that the pion form factor in this region is larger than previously assumed and is consistent with a monopole parametrization fitted to very low Q(2) elast ic data.