Neutral pion threshold production at Q2=0.05 GeV2/c2 and chiral perturbation theory -: art. no. 012301

Publication type:
Journal article
Metadata:
Autoren
  • H Merkel
  • P Bartsch
  • D Baumann
  • J Bermuth
  • AM Bernstein
  • K Bohinc
  • R Böhm
  • N Clawiter
  • S Derber
  • M Ding
  • MO Distler
  • I Ewald
  • JM Friedrich
  • J Friedrich
  • P Jennewein
  • M Kahrau
  • M Kohl
  • KW Krygier
  • M Kuss
  • A Liesenfeld
  • P Merle
  • RA Miskimen
  • U Müller
  • R Neuhausen
  • MM Pavan
  • T Pospischil
  • M Potokar
  • G Rosner
  • H Schmieden
  • M Seimetz
  • S Sirca
  • A Wagner
  • T Walcher
  • M Weis
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000173124800015&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevLett.88.012301
Externe Identifier
  • Clarivate Analytics Document Solution ID: 509BQ
  • PubMed Identifier: 11800938
ISSN
0031-9007
Ausgabe der Veröffentlichung
1
Zeitschrift
PHYSICAL REVIEW LETTERS
Artikelnummer
ARTN 012301
Datum der Veröffentlichung
2002
Status
Published
Titel
Neutral pion threshold production at <i>Q</i><SUP>2</SUP>=0.05 GeV<SUP>2</SUP>/<i>c</i><SUP>2</SUP> and chiral perturbation theory -: art. no. 012301
Sub types
  • Article
Ausgabe der Zeitschrift
88

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • H Merkel
  • P Bartsch
  • D Baumann
  • J Bermuth
  • AM Bernstein
  • K Bohinc
  • R Böhm
  • N Clawiter
  • S Derber
  • M Ding
  • MO Distler
  • I Ewald
  • JM Friedrich
  • J Friedrich
  • P Jennewein
  • M Kahrau
  • M Kohl
  • KW Krygier
  • M Kuss
  • A Liesenfeld
  • P Merle
  • RA Miskimen
  • U Müller
  • R Neuhausen
  • MM Pavan
  • Th Pospischil
  • M Potokar
  • G Rosner
  • H Schmieden
  • M Seimetz
  • S Širca
  • A Wagner
  • Th Walcher
  • M Weis
DOI
10.1103/physrevlett.88.012301
eISSN
1079-7114
ISSN
0031-9007
Ausgabe der Veröffentlichung
1
Zeitschrift
Physical Review Letters
Sprache
en
Artikelnummer
012301
Online publication date
2001
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevlett.88.012301
Datum der Datenerfassung
2017
Titel
Neutral Pion Threshold Production at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">Q</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mspace /><mml:mo>=</mml:mo><mml:mspace /><mml:mn>0.05</mml:mn><mml:mn /><mml:mi /><mml:mrow><mml:msup><mml:mrow><mml:mi>GeV</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>/</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">c</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>and Chiral Perturbation Theory
Ausgabe der Zeitschrift
88

Data source: Crossref

Abstract
New data are presented on the p(e,e'p)pi(0) reaction at threshold at a four-momentum transfer of Q(2) = 0.05 GeV(2)/c(2). The data were taken with the three-spectrometer setup of the A1 Collaboration at the Mainz Microtron MAMI. The complete center of mass solid angle was covered up to a center of mass energy of 4 MeV above threshold. Combined with measurements at three different values of the virtual photon polarization epsilon, the structure functions sigma(T), sigma(L), sigma(TT), and sigma(TL) are determined. The results are compared with calculations in heavy baryon chiral perturbation theory and with a phenomenological model. The measured cross section is significantly smaller than both predictions.
Addresses
  • Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany. Merkel@kph.uni-mainz.de
Autoren
  • H Merkel
  • P Bartsch
  • D Baumann
  • J Bermuth
  • AM Bernstein
  • K Bohinc
  • R Böhm
  • N Clawiter
  • S Derber
  • M Ding
  • MO Distler
  • I Ewald
  • JM Friedrich
  • J Friedrich
  • P Jennewein
  • M Kahrau
  • M Kohl
  • KW Krygier
  • M Kuss
  • A Liesenfeld
  • P Merle
  • RA Miskimen
  • U Müller
  • R Neuhausen
  • MM Pavan
  • Th Pospischil
  • M Potokar
  • G Rosner
  • H Schmieden
  • M Seimetz
  • S Sirca
  • A Wagner
  • Th Walcher
  • M Weis
  • A1 Collaboration
DOI
10.1103/physrevlett.88.012301
eISSN
1079-7114
Externe Identifier
  • PubMed Identifier: 11800938
Open access
false
ISSN
0031-9007
Ausgabe der Veröffentlichung
1
Zeitschrift
Physical review letters
Schlüsselwörter
  • A1 Collaboration
Sprache
eng
Medium
Print-Electronic
Online publication date
2001
Paginierung
012301
Datum der Veröffentlichung
2002
Status
Published
Datum der Datenerfassung
2002
Titel
Neutral pion threshold production at Q(2) = 0.05 GeV(2)/c(2) and chiral perturbation theory.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
88

Data source: Europe PubMed Central

Abstract
New data are presented on the p(e,e'p)pi(0) reaction at threshold at a four-momentum transfer of Q(2) = 0.05 GeV(2)/c(2). The data were taken with the three-spectrometer setup of the A1 Collaboration at the Mainz Microtron MAMI. The complete center of mass solid angle was covered up to a center of mass energy of 4 MeV above threshold. Combined with measurements at three different values of the virtual photon polarization epsilon, the structure functions sigma(T), sigma(L), sigma(TT), and sigma(TL) are determined. The results are compared with calculations in heavy baryon chiral perturbation theory and with a phenomenological model. The measured cross section is significantly smaller than both predictions.
Autoren
  • H Merkel
  • P Bartsch
  • D Baumann
  • J Bermuth
  • AM Bernstein
  • K Bohinc
  • R Böhm
  • N Clawiter
  • S Derber
  • M Ding
  • MO Distler
  • I Ewald
  • JM Friedrich
  • J Friedrich
  • P Jennewein
  • M Kahrau
  • M Kohl
  • KW Krygier
  • M Kuss
  • A Liesenfeld
  • P Merle
  • RA Miskimen
  • U Müller
  • R Neuhausen
  • MM Pavan
  • Th Pospischil
  • M Potokar
  • G Rosner
  • H Schmieden
  • M Seimetz
  • S Sirca
  • A Wagner
  • Th Walcher
  • M Weis
  • A1 Collaboration
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/11800938
DOI
10.1103/PhysRevLett.88.012301
ISSN
0031-9007
Ausgabe der Veröffentlichung
1
Zeitschrift
Phys Rev Lett
Sprache
eng
Country
United States
Paginierung
012301
Datum der Veröffentlichung
2002
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2002
Titel
Neutral pion threshold production at Q(2) = 0.05 GeV(2)/c(2) and chiral perturbation theory.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
88

Data source: PubMed

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