The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance

M Kotulla; J Ahrens; JRM Annand; R Beck; G Caselotti; LS Fog; D Hornidge; S Janssen; B Krusche; JC McGeorge; IJD McGregor; K Mengel; JG Messchendorp; V. Metag; R Novotny; M Pfeiffer; M Rost; S Sack; R. Sanderson; S Schadmand; DP Watts

doi:10.1103/PhysRevLett.89.272001

The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance

M Kotulla^*
, J Ahrens
, JRM Annand
, R Beck
, G Caselotti
, LS Fog
, D Hornidge
, S Janssen
, B Krusche
, JC McGeorge
, IJD McGregor
, K Mengel
, JG Messchendorp
, V. Metag
, R Novotny
, M Pfeiffer
, M Rost
, S Sack
, R. Sanderson
, S Schadmand

DP Watts

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

12 Citations (Scopus)

Abstract

The reaction gammap-->pi(0)gamma(')p has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between roots=1221-1331 MeV. The cross section's differential in angle and energy have been determined for the photon gamma(') in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the Delta(+)(1232) resonance and, for the first time, a value of mu(Delta)(+)=[2.7(-1.3)(+1.0)(stat)+/-1.5(syst)+/-3(theor)]mu(N) has been extracted.

Original language	English
Article number	272001
Number of pages	4
Journal	Physical Review Letters
Volume	89
Issue number	27
DOIs	https://doi.org/10.1103/PhysRevLett.89.272001
Publication status	Published - 30-Dec-2002
Externally published	Yes

Keywords

TAGGED PHOTON SPECTROMETER
DECUPLET
MICROTRON
PARTICLE
BARYONS
TAPS
MAMI
QCD

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The reaction gamma p -pi(0)gamma ' p and the magnetic dipole
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Kotulla, M., Ahrens, J., Annand, JRM., Beck, R., Caselotti, G., Fog, LS., Hornidge, D., Janssen, S., Krusche, B., McGeorge, JC., McGregor, IJD., Mengel, K., Messchendorp, JG., Metag, V., Novotny, R., Pfeiffer, M., Rost, M., Sack, S., Sanderson, R., ... Watts, DP. (2002). The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance. Physical Review Letters, 89(27), Article 272001. https://doi.org/10.1103/PhysRevLett.89.272001

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title = "The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance",

abstract = "The reaction gammap-->pi(0)gamma(')p has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between roots=1221-1331 MeV. The cross section's differential in angle and energy have been determined for the photon gamma(') in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the Delta(+)(1232) resonance and, for the first time, a value of mu(Delta)(+)=[2.7(-1.3)(+1.0)(stat)+/-1.5(syst)+/-3(theor)]mu(N) has been extracted.",

keywords = "TAGGED PHOTON SPECTROMETER, DECUPLET, MICROTRON, PARTICLE, BARYONS, TAPS, MAMI, QCD",

author = "M Kotulla and J Ahrens and JRM Annand and R Beck and G Caselotti and LS Fog and D Hornidge and S Janssen and B Krusche and JC McGeorge and IJD McGregor and K Mengel and JG Messchendorp and V. Metag and R Novotny and M Pfeiffer and M Rost and S Sack and R. Sanderson and S Schadmand and DP Watts",

year = "2002",

month = dec,

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doi = "10.1103/PhysRevLett.89.272001",

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Kotulla, M, Ahrens, J, Annand, JRM, Beck, R, Caselotti, G, Fog, LS, Hornidge, D, Janssen, S, Krusche, B, McGeorge, JC, McGregor, IJD, Mengel, K, Messchendorp, JG, Metag, V, Novotny, R, Pfeiffer, M, Rost, M, Sack, S, Sanderson, R, Schadmand, S & Watts, DP 2002, 'The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance', Physical Review Letters, vol. 89, no. 27, 272001. https://doi.org/10.1103/PhysRevLett.89.272001

TY - JOUR

T1 - The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance

AU - Kotulla, M

AU - Ahrens, J

AU - Annand, JRM

AU - Beck, R

AU - Caselotti, G

AU - Fog, LS

AU - Hornidge, D

AU - Janssen, S

AU - Krusche, B

AU - McGeorge, JC

AU - McGregor, IJD

AU - Mengel, K

AU - Messchendorp, JG

AU - Metag, V.

AU - Novotny, R

AU - Pfeiffer, M

AU - Rost, M

AU - Sack, S

AU - Sanderson, R.

AU - Schadmand, S

AU - Watts, DP

PY - 2002/12/30

Y1 - 2002/12/30

N2 - The reaction gammap-->pi(0)gamma(')p has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between roots=1221-1331 MeV. The cross section's differential in angle and energy have been determined for the photon gamma(') in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the Delta(+)(1232) resonance and, for the first time, a value of mu(Delta)(+)=[2.7(-1.3)(+1.0)(stat)+/-1.5(syst)+/-3(theor)]mu(N) has been extracted.

AB - The reaction gammap-->pi(0)gamma(')p has been measured with the TAPS calorimeter at the Mainz Microtron accelerator facility MAMI for energies between roots=1221-1331 MeV. The cross section's differential in angle and energy have been determined for the photon gamma(') in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the Delta(+)(1232) resonance and, for the first time, a value of mu(Delta)(+)=[2.7(-1.3)(+1.0)(stat)+/-1.5(syst)+/-3(theor)]mu(N) has been extracted.

KW - TAGGED PHOTON SPECTROMETER

KW - DECUPLET

KW - MICROTRON

KW - PARTICLE

KW - BARYONS

KW - TAPS

KW - MAMI

KW - QCD

U2 - 10.1103/PhysRevLett.89.272001

DO - 10.1103/PhysRevLett.89.272001

M3 - Article

SN - 0031-9007

VL - 89

JO - Physical Review Letters

JF - Physical Review Letters

IS - 27

M1 - 272001

ER -

The reaction gamma p ->pi(0)gamma ' p and the magnetic dipole moment of the Delta(+)(1232) resonance

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Keywords

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