Magnetic dipole moment of the Δ+(1232) from the γp→γπ0p reaction -: art. no. 065202

被引：44

作者：

Drechsel, D ^{[1
]}

Vanderhaeghen, M ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

来源：

PHYSICAL REVIEW C | 2001年 / 64卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.64.065202

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The gammap --> gamma pi (0)p reaction in the Delta (1232)-resonance region is investigated as a method to access the Delta (+)(1232) magnetic dipole moment. The calculations are performed within the context of in effective Lagrangian model containing both the Delta -resonant mechanism and a background of nonresonant contributions to the gammap --> gamma pi (0)p reaction. Results are shown both for existing and forthcoming gammap --> gamma pi (0)p experiments, In particular, the sensitivity of unpolarized cross sections and photon asymmetries to the Delta (+) magnetic dipole moment is displayed for those forthcoming data.

引用

页码：652021 / 6520211

页数：11

共 33 条

[1] Helicity dependence of γp→Nπ below 450 MeV and contribution to the Gerasimov-Drell-Hearn sum rule [J].

Ahrens, J ;

Altieri, S ;

Annand, JRM ;

Anton, G ;

Arends, HJ ;

Aulenbacher, K ;

Beck, R ;

Bradtke, C ;

Braghieri, A ;

Degrande, N ;

d'Hose, N ;

Dutz, H ;

Goertz, S ;

Grabmayr, P ;

Hansen, K ;

Harmsen, J ;

von Harrach, D ;

Hasegawa, S ;

Hasegawa, T ;

Heid, E ;

Helbing, K ;

Holvoet, H ;

Van Hoorebeke, L ;

Horikawa, N ;

Iwata, T ;

Jennewein, P ;

Kageya, T ;

Kiel, B ;

Klein, F ;

Kondratiev, R ;

Kossert, K ;

Krimmer, J ;

Lang, M ;

Lannoy, B ;

Leukel, R ;

Lisin, V ;

Matsuda, T ;

McGeorge, JC ;

Meier, A ;

Menze, D ;

Meyer, W ;

Michel, T ;

Naumann, J ;

Owens, RO ;

Panzeri, A ;

Pedroni, P ;

Pinelli, T ;

Preobrajenski, I ;

Radtke, E ;

Reichert, E .

PHYSICAL REVIEW LETTERS, 2000, 84 (26) :5950-5954

[2] Magnetic moments of decuplet baryons in light cone QCD -: art. no. 053012 [J].

Aliev, TM ;

Özpineci, A ;

Savci, M .

PHYSICAL REVIEW D, 2000, 62 (05) :1-8

[3] Magnetic moments of Δ baryons in light cone QCD sum rules [J].

Aliev, TM ;

Özpineci, A ;

Savci, M .

NUCLEAR PHYSICS A, 2000, 678 (04) :443-454

[4] Pion photoproduction in the Delta resonance region [J].

Arndt, RA ;

Strakovsky, II ;

Workman, RL .

PHYSICAL REVIEW C, 1997, 56 (01) :577-578

[5] FINITE-WIDTH EFFECTS AND GAUGE-INVARIANCE IN RADIATIVE-W PRODUCTION AND DECAY [J].

BAUR, U ;

ZEPPENFELD, D .

PHYSICAL REVIEW LETTERS, 1995, 75 (06) :1002-1005

[6] Determination of the E2/M1 ratio in the yN→Δ(1232) transition from a simultaneous measurement of p((γ)over-right-arrow,p)π0 and p((γ)over-right-arrow, π+)n -: art. no. 035204 [J].

Beck, R ;

Krahn, HP ;

Ahrens, J ;

Annand, JRM ;

Arends, HJ ;

Audit, G ;

Braghieri, A ;

d'Hose, N ;

Drechsel, D ;

Hanstein, O ;

McGeorge, JC ;

Owens, RO ;

Pedroni, P ;

Pinelli, T ;

Tamas, G ;

Tiator, L ;

Walcher, T .

PHYSICAL REVIEW C, 2000, 61 (03) :352041-3520414

[7]

BECK R, 2001, COMMUNICATION

[8] Behaviour of the absorptive part of the W-+/- electromagnetic vertex [J].

Beuthe, M ;

Felipe, RG ;

Castro, GL ;

Pestieau, J .

NUCLEAR PHYSICS B, 1997, 498 (1-2) :55-67

[9] ANALYZING POWER IN PION-PROTON BREMSSTRAHLUNG, AND THE DELTA++(1232) MAGNETIC-MOMENT [J].

BOSSHARD, A ;

AMSLER, C ;

DOBELI, M ;

DOSER, M ;

SCHAAD, M ;

RIEDLBERGER, J ;

TRUOL, P ;

BISTIRLICH, JA ;

CROWE, KM ;

LJUNGFELT, S ;

MEYER, CA ;

VANDENBRANDT, B ;

KONTER, JA ;

MANGO, S ;

RENKER, D ;

LOUDE, JF ;

PERROUD, JP ;

HADDOCK, RP ;

SOBER, DI .

PHYSICAL REVIEW D, 1991, 44 (07) :1962-1974

[10]

BUKIN AD, 1978, SOV J NUCL PHYS+, V27, P516

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