Measurement of the Charged Pion Electromagnetic Form Factor

Volmer, J; Abbott, David; Anklin, H; Armstrong, Chris; Arrington, John; Assamagan, K; Avery, Steven; Baker, Oliver K; Blok, Henk; Bochna, C; Brash, Ed; Breuer, Herbert; Chant, Nicholas; Dunne, Jim; Eden, Tom; Ent, Rolf; Gaskell, David; Gilman, Ron; Gustafsson, Kenneth; Hinton, Wendy; Huber, Garth; Jackson, Hal; Jones, Mark K; Keppel, Cynthia; Kim, P H; Kim, Wooyoung; Klein, Andi; Koltenuk, Doug; Liang, Meme; Lolos, George; Lung, Allison; Mack, David; McKee, D; Meekins, David; Mitchell, Joseph; Mkrtchian, H; Mueller, B; Niculescu, Gabriel; Niculescu, Ioana; Pitz, D; Potterveld, D; Qin, Liming; Reinhold, Juerg; Shin, I K; Stepanyan, Stepan; Tadevosian, V; Tang, L G; Vansyoc, K; Westrum, D Van; Vulcan, Bill; Wood, Stephen; Yan, Chen; Zhao, W X; Zihlmann, Beni

doi:10.1103/PhysRevLett.86.1713

Title: Measurement of the Charged Pion Electromagnetic Form Factor

Journal Article · Mon Feb 26 00:00:00 EST 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.86.1713· OSTI ID:802836

Volmer, J; Abbott, David; Anklin, H; Armstrong, Chris; Arrington, John; Assamagan, K; Avery, Steven; Baker, Oliver K; Blok, Henk; Bochna, C; Brash, Ed; Breuer, Herbert; Chant, Nicholas; Dunne, Jim; Eden, Tom; Ent, Rolf; Gaskell, David; Gilman, Ron; Gustafsson, Kenneth; Hinton, Wendy more »

Separated longitudinal and transverse structure functions for the reaction 1H(e,eprime pi+)n were measured in the momentum transfer region Q2=0.6-1.6 (GeV/c)**2 at a value of the invariant mass W=1.95 GeV. New values for the pion charge form factor were extracted from the longitudinal cross section 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 parameterization fitted to very low Q2 elastic data.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Energy Research (ER) (US)

DOE Contract Number:: AC05-84ER40150

OSTI ID:: 802836

Report Number(s):: JLAB-PHY-00-50; DOE/ER/40150-2273; PRLTAO; TRN: US0205671

Journal Information:: Physical Review Letters, Vol. 86; Other Information: Phys.Rev.Lett.86:1713-1716,2001; PBD: 26 Feb 2001; ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

References (15)

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