Analysis of resonance multipoles from polarization observables in η photoproduction -: art. no. 035210

被引：74

作者：

Tiator, L ^{[1
]}

Drechsel, D

Knöchlein, G

Bennhold, C

机构：

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

[2] George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA

来源：

PHYSICAL REVIEW C | 1999年 / 60卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.60.035210

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：

A combined analysis of new eta photoproduction data for total and differential cross sections, target asymmetry, and photon asymmetry is presented. Using a few reasonable assumptions we perform the first model-independent analysis of the E0+, E2-, and M2- era photoproduction multipoles. Making use of the well-known A(3/2) helicity amplitude of the D-13(1520) state, we extract its branching ratio to the eta N channel, Gamma(eta N)/Gamma = (0.08 +/- 0.01)%. At higher energies, we show that the photon asymmetry is extremely sensitive to small multipoles that are excited by photons in the helicity 3/2 state. The new GRAAL photon asymmetry data at higher energy show a clear signal of the F-15(1680) excitation which permits extracting an F-15(1680) --> eta N branching ratio of (0.15(-0.10)(+0.35))%. [S0556-2813(99)01809-9].

引用

页数：9

共 24 条

[1] New measurement of Σ beam asymmetry for η meson photoproduction on the proton [J].

Ajaka, J ;

Anghinolfi, M ;

Bellini, V ;

Berrier, G ;

Bocquet, JP ;

Breuer, M ;

Calvat, PM ;

Capogni, M ;

Casano, LE ;

Castoldi, M ;

Ciciani, L ;

Corvisiero, P ;

D'Angelo, A ;

Didelez, JP ;

Di Salvo, R ;

Djalali, C ;

Duval, MA ;

Frascaria, R ;

Gervino, G ;

Ghio, F ;

Girard, P ;

Girolami, B ;

Guinault, E ;

Hoffmann-Rothe, P ;

Hourany, E ;

Kilvington, I ;

Kouznetsov, V ;

Lapik, A ;

Sandri, PL ;

Moricciani, D ;

Morlet, M ;

Nedorezov, V ;

Nicoletti, L ;

Perrin, C ;

Rebreyend, D ;

Renard, F ;

Ripani, M ;

Rosier, L ;

Rossi, P ;

Roudot, F ;

Russew, T ;

Sanzone, M ;

Schaerf, C ;

Sperduto, ML ;

Sudov, A ;

Taiuti, M ;

Turinge, A ;

Van de Wiele, J ;

Zucchiatti, A .

PHYSICAL REVIEW LETTERS, 1998, 81 (09) :1797-1800

[2] Updated resonance photodecay amplitudes to 2 GeV [J].

Arndt, RA ;

Strakovsky, II ;

Workman, RL .

PHYSICAL REVIEW C, 1996, 53 (01) :430-440

[3] PION-PHOTOPRODUCTION RESONANCE COUPLINGS IN THE 2ND RESONANCE REGION [J].

ARNDT, RA ;

WORKMAN, RL ;

LI, ZJ ;

ROPER, LD .

PHYSICAL REVIEW C, 1990, 42 (05) :1864-1866

[4] Measurement of the E2/M1 ratio in the N->Delta transition using the reaction p((gamma)over-right-arrow,p)pi(0) [J].

Beck, R ;

Krahn, HP ;

Ahrens, J ;

Arends, HJ ;

Audit, G ;

Braghieri, A ;

dHose, N ;

Hall, SJ ;

Isbert, V ;

Kellie, JD ;

MacGregor, IJD ;

Pedroni, P ;

Pinelli, T ;

Tamas, G ;

Walcher, T ;

Wartenberg, S .

PHYSICAL REVIEW LETTERS, 1997, 78 (04) :606-609

[5] EFFECTIVE LAGRANGIAN APPROACH TO THE THEORY OF ETA-PHOTOPRODUCTION IN THE N-ASTERISK(1535) REGION [J].

BENMERROUCHE, M ;

MUKHOPADHYAY, NC ;

ZHANG, JF .

PHYSICAL REVIEW D, 1995, 51 (07) :3237-3266

[6] COHERENT AND INCOHERENT ETA-PHOTOPRODUCTION FROM NUCLEI [J].

BENNHOLD, C ;

TANABE, H .

NUCLEAR PHYSICS A, 1991, 530 (3-4) :625-659

[7] Measurement of the target asymmetry of η and πo photoproduction on the proton [J].

Bock, A ;

Anton, G ;

Beulertz, W ;

Bradtke, C ;

Dutz, H ;

Gehring, R ;

Goertz, S ;

Helbing, K ;

Hey, J ;

Meyer, W ;

Pluckthun, M ;

Reicherz, G ;

Sozuer, L ;

Breuer, M ;

Didelez, JP ;

Hoffmann-Rothe, P .

PHYSICAL REVIEW LETTERS, 1998, 81 (03) :534-537

[8]

BOCK A, 1997, THESIS ERLANGEN

[9] Review of Particle Physics [J].

The European Physical Journal C - Particles and Fields, 1998, 3 (1-4) :1-783

[10] eta-meson photoproduction off protons and deuterons [J].

DeutschSauermann, C ;

Friman, B ;

Norenberg, W .

PHYSICS LETTERS B, 1997, 409 (1-4) :51-57

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