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Title: Analytic pion form factor

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1322443
Grant/Contract Number:
SC0011090
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 5; Related Information: CHORUS Timestamp: 2016-09-08 18:09:43; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Lomon, Earle L., and Pacetti, Simone. Analytic pion form factor. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.94.056002.
Lomon, Earle L., & Pacetti, Simone. Analytic pion form factor. United States. doi:10.1103/PhysRevD.94.056002.
Lomon, Earle L., and Pacetti, Simone. 2016. "Analytic pion form factor". United States. doi:10.1103/PhysRevD.94.056002.
@article{osti_1322443,
title = {Analytic pion form factor},
author = {Lomon, Earle L. and Pacetti, Simone},
abstractNote = {},
doi = {10.1103/PhysRevD.94.056002},
journal = {Physical Review D},
number = 5,
volume = 94,
place = {United States},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.94.056002

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  • No abstract prepared.
  • The contributions from the transverse and longitudinal components to the amplitude for pion electroproduction on the proton at threshold are separated. A multipole analysis of the results is carried out. The axial-vector form factor of the nucleon and the form factor of the pion are determined.
  • DOI: http://dx.doi.org/10.1103/PhysRevC.78.045203 The charged pion form factor, Fpi(Q2), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the 1H(e,e'pi+)n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fpi are presented for Q2=0.60-2.45 GeV2. Above Q2=1.5 GeV2, the Fpi values are systematically below the monopole parametrization that describes themore » low Q2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard c« less
  • The charged pion form factor, F{sub {Pi}}(Q{sup 2}), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of F{sub {Pi}} from data requires a model of the {sup 1}H(e,e'{Pi}+)n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for F{sub {Pi}} are presented for Q{sup 2} = 0.60-2.45 GeV2. Above Q{sup 2}=1.5GeV{sup 2}, the F{sub {Pi}} values aremore » systematically below the monopole parametrization that describes the low Q{sup 2} data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard contributions to hadronic structure in the intermediate Q{sup 2} regime.« less
  • The charged pion form factor, F{sub {pi}}(Q{sup 2}), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of F{sub {pi}} from data requires a model of the {sup 1}H(e,e{sup '}{pi}{sup +})n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for F{sub {pi}} are presented for Q{sup 2}=0.60-2.45 GeV{sup 2}. Above Q{sup 2}=1.5 GeV{sup 2}, the F{sub {pi}}more » values are systematically below the monopole parametrization that describes the low Q{sup 2} data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard contributions to hadronic structure in the intermediate Q{sup 2} regime.« less