N* → Nη′ decays from photoproduction of η′-mesons off protons

被引：16

作者：

Anisovich, A. V. ^{[1
,2
]}

Burkert, V. ^{[3
]}

Collins, P. M. ^{[4
]}

Dugger, M. ^{[4
]}

Klempt, E. ^{[1
,3
]}

Nikonov, V. A. ^{[1
,2
]}

Ritchie, B. G. ^{[4
]}

Sarantsev, A. V. ^{[1
,2
]}

Thoma, U. ^{[1
]}

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Bonn, Germany

[2] PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia

[3] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[4] Arizona State Univ, Tempe, AZ 85287 USA

来源：

PHYSICS LETTERS B | 2017年 / 772卷

基金：

美国国家科学基金会; 俄罗斯科学基金会;

关键词：

Baryon spectroscopy; Meson photoproduction; Polarization observables; REACTION GAMMA-P; OMEGA;

D O I：

10.1016/j.physletb.2017.06.052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A study of the partial-wave content of the gamma p -> eta' p preaction in the fourth resonance region is presented, which has been prompted by new measurements of polarization observables for that process. Using the Bonn-Gatchina partial-wave formalism, the incorporation of new data indicates that the N(1895) 1/2(-), N(1900) 3/2(+), N(2100) 1/2(+), and N(2120) 3/2(-) are the most significant contributors to the photoproduction process. New results for the branching ratios of the decays of these more prominent resonances to N eta' final states are provided; such branches have not been indicated in the most recent edition of the Review of Particle Properties. Based on the analysis performed here, predictions for the helicity asymmetry Efor the gamma p -> eta' ppreaction are presented. (C) 2017 The Authors. Published by Elsevier B.V.

引用

页码：247 / 252

页数：6

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