Measurements of the γ*p → Δ reaction at low Q2

Publication type:

Journal article

Metadata:

Autoren

N Sparveris
S Stave
P Achenbach
C Ayerbe Gayoso
D Baumann
J Bernauer
AM Bernstein
R Boehm
D Bosnar
T Botto
A Christopoulou
D Dale
M Ding
MO Distler
L Doria
J Friedrich
A Karabarbounis
M Makek
H Merkel
U Mueller
I Nakagawa
R Neuhausen
L Nungesser
CN Papanicolas
A Piegsa
J Pochodzalla
M Potokar
M Seimetz
S Sirca
S Stiliaris
Th Walcher
M Weis

Autoren-URL

https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000326384000001&DestLinkType=FullRecord&DestApp=WOS_CPL

DOI

10.1140/epja/i2013-13136-2

eISSN

1434-601X

Externe Identifier

Clarivate Analytics Document Solution ID: 244JK

ISSN

1434-6001

Ausgabe der Veröffentlichung

Zeitschrift

EUROPEAN PHYSICAL JOURNAL A

Artikelnummer

ARTN 136

Datum der Veröffentlichung

2013

Status

Published

Titel

Measurements of the γ*p → Δ reaction at low Q<SUP>2</SUP>

Sub types

Article

Ausgabe der Zeitschrift

Data source: Web of Science (Lite)

Other metadata sources:

Autoren

N Sparveris
S Stave
P Achenbach
C Ayerbe Gayoso
D Baumann
J Bernauer
AM Bernstein
R Böhm
D Bosnar
T Botto
A Christopoulou
D Dale
M Ding
MO Distler
L Doria
J Friedrich
A Karabarbounis
M Makek
H Merkel
U Müller
I Nakagawa
R Neuhausen
L Nungesser
CN Papanicolas
A Piegsa
J Pochodzalla
M Potokar
M Seimetz
S Širca
S Stiliaris
Th Walcher
M Weis

DOI

10.1140/epja/i2013-13136-2

eISSN

1434-601X

ISSN

1434-6001

Ausgabe der Veröffentlichung

Zeitschrift

The European Physical Journal A

Sprache

Artikelnummer

136

Online publication date

2013

Datum der Veröffentlichung

2013

Status

Published

Herausgeber

Springer Science and Business Media LLC

Herausgeber URL

http://dx.doi.org/10.1140/epja/i2013-13136-2

Datum der Datenerfassung

2019

Titel

Measurements of the γ*p → Δ reaction at low Q2

Ausgabe der Zeitschrift

Data source: Crossref

Abstract

We report new p$(\vec{e},e^\prime p)\pi^\circ$ measurements in the $\Delta^{+}(1232)$ resonance at the low momentum transfer region utilizing the magnetic spectrometers of the A1 Collaboration at MAMI. The mesonic cloud dynamics are predicted to be dominant and appreciably changing in this region while the momentum transfer is sufficiently low to be able to test chiral effective calculations. The results disagree with predictions of constituent quark models and are in reasonable agreement with dynamical calculations with pion cloud effects, chiral effective field theory and lattice calculations. The reported measurements suggest that improvement is required to the theoretical calculations and provide valuable input that will allow their refinements.

Autoren