First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

Publication type:

Journal article

Metadata:

Autoren

M Dieterle
L Witthauer
F Cividini
S Abt
P Achenbach
P Adlarson
F Afzal
Z Ahmed
CS Akondi
JRM Annand
HJ Arends
M Bashkanov
R Beck
M Biroth
NS Borisov
A Braghieri
WJ Briscoe
S Costanza
C Collicott
A Denig
EJ Downie
P Drexler
MI Ferretti-Bondy
S Gardner
S Garni
DI Glazier
D Glowa
W Gradl
M Gunther
GM Gurevich
D Hamilton
D Hornidge
GM Huber
A Kaser
VL Kashevarov
S Kay
I Keshelashvili
R Kondratiev
M Korolija
B Krusche
AB Lazarev
JM Linturi
V Lisin
K Livingston
S Lutterer
IJD MacGregor
J Mancell
DM Manley
PP Martel
V Metag
W Meyer
R Miskimen
E Mornacchi
A Mushkarenkov
AB Neganov
A Neiser
M Oberle
M Ostrick
PB Otte
D Paudyal
P Pedroni
A Polonski
SN Prakhov
A Rajabi
G Reicherz
G Ron
T Rostomyan
A Sarty
C Sfienti
MH Sikora
V Sokhoyan
K Spieker
O Steffen
II Strakovsky
Th Strub
I Supek
A Thiele
M Thiel
A Thomas
M Unverzagth
Yu A Usov
S Wagner
NK Walford
DP Watts
D Werthmueller
J Wettig
M Wolfes
L Zana

Autoren-URL

https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000404196500066&DestLinkType=FullRecord&DestApp=WOS_CPL

DOI

10.1016/j.physletb.2017.04.079

eISSN

1873-2445

Externe Identifier

Clarivate Analytics Document Solution ID: EY7UA

ISSN

0370-2693

Zeitschrift

PHYSICS LETTERS B

Paginierung

523 - 531

Datum der Veröffentlichung

2017

Status

Published

Titel

First measurement of the polarization observable E and helicity-dependent cross sections in single π<SUP>0</SUP> photoproduction from quasi-free nucleons

Sub types

Article

Ausgabe der Zeitschrift

770

Data source: Web of Science (Lite)

Other metadata sources:

Autoren

M Dieterle
L Witthauer
F Cividini
S Abt
P Achenbach
P Adlarson
F Afzal
Z Ahmed
CS Akondi
JRM Annand
HJ Arends
M Bashkanov
R Beck
M Biroth
NS Borisov
A Braghieri
WJ Briscoe
S Costanza
C Collicott
A Denig
EJ Downie
P Drexler
MI Ferretti-Bondy
S Gardner
S Garni
DI Glazier
D Glowa
W Gradl
M Günther
GM Gurevich
D Hamilton
D Hornidge
GM Huber
A Käser
VL Kashevarov
S Kay
I Keshelashvili
R Kondratiev
M Korolija
B Krusche
AB Lazarev
JM Linturi
V Lisin
K Livingston
S Lutterer
IJD MacGregor
J Mancell
DM Manley
PP Martel
V Metag
W Meyer
R Miskimen
E Mornacchi
A Mushkarenkov
AB Neganov
A Neiser
M Oberle
M Ostrick
PB Otte
D Paudyal
P Pedroni
A Polonski
SN Prakhov
A Rajabi
G Reicherz
G Ron
T Rostomyan
A Sarty
C Sfienti
MH Sikora
V Sokhoyan
K Spieker
O Steffen
II Strakovsky
Th Strub
I Supek
A Thiel
M Thiel
A Thomas
M Unverzagt
Yu A Usov
S Wagner
NK Walford
DP Watts
D Werthmüller
J Wettig
M Wolfes
L Zana

DOI

10.1016/j.physletb.2017.04.079

ISSN

0370-2693

Zeitschrift

Physics Letters B

Sprache

Paginierung

523 - 531

Datum der Veröffentlichung

2017

Status

Published

Herausgeber

Elsevier BV

Herausgeber URL

http://dx.doi.org/10.1016/j.physletb.2017.04.079

Datum der Datenerfassung

2021

Titel

First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

Ausgabe der Zeitschrift

770

Data source: Crossref

Abstract

The double-polarization observable $E$ and the helicity-dependent cross sections $\sigma_{1/2}$ and $\sigma_{3/2}$ have been measured for the first time for single $\pi^{0}$ photoproduction from protons and neutrons bound in the deuteron at the electron accelerator facility MAMI in Mainz, Germany. The experiment used a circularly polarized photon beam and a longitudinally polarized deuterated butanol target. The reaction products, recoil nucleons and decay photons from the $\pi^0$ meson were detected with the Crystal Ball and TAPS electromagnetic calorimeters. Effects from nuclear Fermi motion were removed by a kinematic reconstruction of the $\pi^{0}N$ final state. A comparison to data measured with a free proton target showed that the absolute scale of the cross sections is significantly modified by nuclear final-state interaction (FSI) effects. However, there is no significant effect on the asymmetry $E$ since the $\sigma_{1/2}$ and $\sigma_{3/2}$ components appear to be influenced in a similar way. Thus, the best approximation of the two helicity-dependent cross sections for the free neutron is obtained by combining the asymmetry $E$ measured with quasi-free neutrons and the unpolarized cross section corrected for FSI effects under the assumption that the FSI effects are similar for neutrons and protons.

Autoren

M Dieterle
L Witthauer
F Cividini
S Abt
P Achenbach
P Adlarson
F Afzal
Z Ahmed
CS Akondi
JRM Annand
HJ Arends
M Bashkanov
R Beck
M Biroth
NS Borisov
A Braghieri
WJ Briscoe
S Costanza
C Collicott
A Denig
EJ Downie
P Drexler
MI Ferretti-Bondy
S Gardner
S Garni
DI Glazier
D Glowa
W Gradl
M Günther
GM Gurevich
D Hamilton
D Hornidge
GM Huber
A Käser
VL Kashevarov
S Kay
I Keshelashvili
R Kondratiev
M Korolija
B Krusche
AB Lazarev
JM Linturi
V Lisin
K Livingston
S Lutterer
IJD MacGregor
J Mancell
DM Manley
PP Martel
V Metag
W Meyer
R Miskimen
E Mornacchi
A Mushkarenkov
AB Neganov
A Neiser
M Oberle
M Ostrick
PB Otte
D Paudyal
P Pedroni
A Polonski
SN Prakhov
A Rajabi
G Reicherz
G Ron
T Rostomyan
A Sarty
C Sfienti
MH Sikora
V Sokhoyan
K Spieker
O Steffen
II Strakovsky
Th Strub
I Supek
A Thiel
M Thiel
A Thomas
M Unverzagt
Yu A Usov
S Wagner
NK Walford DP Watts
D Werthmüller
J Wettig
M Wolfes
L Zana

Autoren-URL

http://arxiv.org/abs/1705.07342v1

Zeitschrift

Phys. Lett. B

Schlüsselwörter

nucl-ex
nucl-ex

Notes

accepted for publication in Phys. Lett. B

Paginierung

523

Datum der Veröffentlichung

2017

Herausgeber URL

http://dx.doi.org/10.1016/j.physletb.2017.04.079

Datum der Datenerfassung

2017

Datum, an dem der Datensatz öffentlich gemacht wurde

2017

Titel

First measurement of the polarization observable $E$ and helicity-dependent cross sections in single $π^{0}$ photoproduction from quasi-free nucleons

Ausgabe der Zeitschrift

770

Files

1705.07342v1.pdf

Data source: arXiv

Beziehungen:

Property of

First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

Files

Tools