Effective densities and polarizations of the targets for the GDH-experiments at MAMI and ELSA - INSPIRE

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Effective densities and polarizations of the targets for the GDH-experiments at MAMI and ELSA

C.C. Rohlof
(
- Bonn U.
)
,
H. Dutz
(
- Bonn U.
)

2004

6 pages

Part of Polarized solid targets and techniques. Proceedings, 9th International Workshop, Bad Honnef, Germany, October 27-29, 2003

Published in:

Nucl.Instrum.Meth.A 526 (2004) 126-131

Contribution to:

9th International Workshop on Polarized Targets and Techniques

DOI:

10.1016/j.nima.2004.03.162

Experiments:

reference search11 citations

Citations per year

Abstract: (Elsevier)

An experimental program has been started at MAMI and ELSA to measure the integrand of the Gerasimov–Drell–Hearn sum rule (GDH) in a photon energy range starting from the pion threshold up to 2.9 GeV . A polarized target has been built, which is based on the frozen spin technique. Since the value of the nucleon polarization and the areal density of the target contribute directly to the result of the GDH-integral both quantities have to be determined with high accuracy.

29.25.Pj
polarized targets
frozen spin target
Polarized targets
Frozen spin target
talk: Bad Honnef 2003/10/27
p: polarized target
deuterium: polarized target
polarization: polarized target
cryogenics

References(20)

Figures(0)

[1]

A Sum rule for magnetic moments and the damping of the nucleon magnetic moment in nuclei

S.B. Gerasimov
(
- Dubna, JINR
)

- Sov.J.Nucl.Phys. 2 (1966) 430-433,
- Yad.Fiz. 2 (1965) 598-602

[2]

Exact Sum Rule for Nucleon Magnetic Moments

S.D. Drell
(
- SLAC
)
,
Anthony C. Hearn
(
- Stanford U., ITP
)

- Phys.Rev.Lett. 16 (1966) 908-911
•
DOI:
- 10.1103/PhysRevLett.16.908

[3]

Proceedings of High Energy Spin

S. Robinson

- Physics 2 (1990) 385

[4]

Ph.D. Dissertation, Bonn

C. Bradtke

[5]

Proceedings of International Workshop on Polarized Sources and Targets,, p. 430

C. Rohlof

[6]

Transverse profile monitor using ion probe beams

- Nucl.Instrum.Meth.A 484 (2002) 1-16
•
DOI:
- 10.1016/S0168-9002(01)01965-9

[7]

Ph.D. Dissertation, Bonn

V. Kadansky

[8]

Ph.D. Dissertation, Bochum

A. Meier

[9]

Corrections to nucleon spin structure asymmetries measured on nuclear polarized targets

Oscar A. Rondon-Aramayo
(
- Virginia U.
)

- Phys.Rev.C 60 (1999) 035201
•
DOI:
- 10.1103/PhysRevC.60.035201

[10]

Quantum Monte Carlo calculations of nuclei with A <= 7

B.S. Pudliner
(
- Illinois U., Urbana
)
,
V.R. Pandharipande
(
- Illinois U., Urbana
)
,
J. Carlson
(
- Los Alamos
)
,
Steven C. Pieper
(
- Argonne, PHY
)
,
Robert B. Wiringa
(
- Argonne, PHY
)

- Phys.Rev.C 56 (1997) 1720-1750
•
e-Print:
- nucl-th/9705009
•
DOI:
- 10.1103/PhysRevC.56.1720

[11]

A Study of lithium deuteride as a material for a polarized target

Stephen L. Bueltmann
(
- Virginia U.
)
,
D.G. Crabb
(
- Virginia U.
)
,
D.B. Day
(
- Virginia U.
)
,
R.D. Fatemi
(
- Virginia U.
)
,
B. Gardner
(
- Virginia U.
)

et al.

- Nucl.Instrum.Meth.A 425 (1999) 23-36
•
DOI:
- 10.1016/S0168-9002(98)01341-2

[12]

Ph.D. Dissertation, Bonn

C. Rohlof

[13]

Nucl. Instr. and Meth. A, these Proceedings

K. Kondo

[14]

First results of the large COMPASS Li-6_D polarized target

J Ball
(
- DAPNIA, Saclay
)
,
G Baum
(
- Bielefeld U.
)
,
P Berglund
(
- Helsinki U. of Tech. and
- Helsinki Inst. of Phys.
)
,
I Daito
(
- Nagoya U.
)
,
N Doshita
(
- Nagoya U.
)

et al.

- Nucl.Instrum.Meth.A 498 (2003) 101-111
•
DOI:
- 10.1016/S0168-9002(02)02116-2

[15]

The Bonn polarized target NMR system

et al.

- Nucl.Instrum.Meth.A 356 (1995) 74-78
•
DOI:
- 10.1016/0168-9002(94)01447-7

[16]

F. Pobell

[17]

Helicity dependence of gamma p --> N pi below 450-MeV and contribution to the Gerasimov-Drell-Hearn sum rule

GDH and
A2

Collaborations

•

J. Ahrens
(
- Mainz U.
)

et al.

- Phys.Rev.Lett. 84 (2000) 5950-5954
•
DOI:
- 10.1103/PhysRevLett.84.5950

[18]

First measurement of the Gerasimov-Drell-Hearn integral for Hydrogen from 200 to 800 MeV

GDH and
A2

Collaborations

•

J. Ahrens
(
- Mainz U., Inst. Phys.
)

et al.

- Phys.Rev.Lett. 87 (2001) 022003
•
e-Print:
- hep-ex/0105089
•
DOI:
- 10.1103/PhysRevLett.87.022003

[19]

The Helicity amplitudes A(1/2) and A(3/2) for the D(13)(1520) resonance obtained from the polarized-gamma polarized-p ---> p pi0 reaction

GDH and
A2

Collaborations

•

J. Ahrens

et al.

- Phys.Rev.Lett. 88 (2002) 232002
•
e-Print:
- hep-ex/0203006
•
DOI:
- 10.1103/PhysRevLett.88.232002

[20]

First measurement of the Gerasimov-Drell-Hearn sum rule for H-1 from 0.7-GeV to 1.8-GeV at ELSA

GDH

Collaboration

•

H. Dutz
(
- Bonn U.
)

et al.

- Phys.Rev.Lett. 91 (2003) 192001
•
DOI:
- 10.1103/PhysRevLett.91.192001