Odd and even partial waves of ηπ- and η′π- in π- p → η(')π-p at 191 GeV/c

被引：53

作者：

Adolph, C. ^{[8
]}

Akhunzyanov, R. ^{[7
]}

Alexeev, M. G. ^{[27
]}

Alexeev, G. D. ^{[7
]}

Amoroso, A. ^{[27
,29
,32
]}

Andrieux, V. ^{[22
]}

Anosov, V. ^{[7
]}

Austregesilo, A. ^{[10
,17
]}

Badelek, B. ^{[31
]}

Balestra, F. ^{[27
,29
]}

Barth, J. ^{[4
]}

Baum, G. ^{[1
]}

Beck, R. ^{[3
]}

Bedfer, Y. ^{[22
]}

Berlin, A. ^{[2
]}

Bernhard, J. ^{[13
]}

Bicker, K. ^{[10
,17
]}

Bielert, E. R. ^{[10
]}

Bieling, J. ^{[4
]}

Birsa, R. ^{[25
]}

Bisplinghoff, J. ^{[3
]}

Bodlak, M. ^{[19
]}

Boer, M. ^{[22
]}

Bordalo, P. ^{[12
,34
]}

Bradamante, F. ^{[24
,25
]}

Braun, C. ^{[8
]}

Bressan, A. ^{[24
,25
]}

Buechele, M. ^{[9
]}

Burtin, E. ^{[22
]}

Capozza, L. ^{[22
]}

Chiosso, M. ^{[27
,29
]}

Chung, S. U. ^{[17
,35
,36
]}

Cicuttin, A. ^{[25
,26
]}

Crespo, M. L. ^{[25
,26
]}

Curiel, Q. ^{[22
]}

Dalla Torre, S. ^{[25
]}

Dasgupta, S. S. ^{[6
]}

Dasgupta, S. ^{[25
]}

Denisov, O. Yu. ^{[29
]}

Donskov, S. V. ^{[21
]}

Doshita, N. ^{[33
]}

Duic, V. ^{[24
]}

Duennweber, W. ^{[16
]}

Dziewiecki, M. ^{[32
]}

Efremov, A. ^{[7
]}

Elia, C. ^{[24
,25
]}

Eversheim, P. D. ^{[3
]}

Eyrich, W. ^{[8
]}

Faessler, M. ^{[16
]}

Ferrero, A. ^{[22
]}

机构：

[1] Univ Bielefeld, Bielefeld, Germany

[2] Ruhr Univ Bochum, Bochum, Germany

[3] Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[5] Inst Sci Instruments, CR-61264 Brno, Czech Republic

[6] Matrivani Inst Expt Res & Educ, Kolkata 700 030, W Bengal, India

[7] Joint Inst Nucl Res, Dubna 141980, Russia

[8] Univ Erlangen Nurnberg, Inst Phys, D-91054 Erlangen, Germany

[9] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany

[10] CERN, CH-1211 Geneva 23, Switzerland

[11] Tech Univ Liberec, Liberec 46117, Czech Republic

[12] LIP, P-1000149 Lisbon, Portugal

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

[14] Miyazaki Univ, Miyazaki 8892192, Japan

[15] PN Lebedev Phys Inst, Moscow 119991, Russia

[16] Univ Munich, Dept Phys, D-80799 Munich, Germany

[17] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

[18] Nagoya Univ, Nagoya, Aichi 464, Japan

[19] Charles Univ Prague, Fac Math & Phys, Prague 18000, Czech Republic

[20] Czech Tech Univ, Prague 16636, Czech Republic

[21] Natl Res Ctr, Kurchatov Inst, Inst High Energy Phys, State Sci Ctr, Protvino 142281, Russia

[22] CEA, IRFU, SPhN Saclay, F-91191 Gif Sur Yvette, France

[23] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[24] Univ Trieste, Dept Phys, I-34127 Trieste, Italy

[25] Ist Nazl Fis Nucl, Trieste Sect, I-34127 Trieste, Italy

[26] Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy

[27] Univ Turin, Dept Phys, I-10125 Turin, Italy

[28] Univ Piemonte Orientale, I-15100 Alessandria, Italy

[29] Ist Nazl Fis Nucl, Torino Sect, I-10125 Turin, Italy

[30] Natl Ctr Nucl Res, PL-00681 Warsaw, Poland

[31] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland

[32] Warsaw Univ Technol, Inst Radioelect, PL-00665 Warsaw, Poland

[33] Yamagata Univ, Yamagata 9928510, Japan

[34] Univ Lisbon, Inst Super Tecn, P-1699 Lisbon, Portugal

[35] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

[36] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[37] Chubu Univ, Kasugai, Aichi 4878501, Japan

[38] KEK, Tsukuba, Ibaraki 3050801, Japan

[39] Moscow Inst Phys & Technol, Moscow 141700, Russia

来源：

PHYSICS LETTERS B | 2015年 / 740卷

基金：

以色列科学基金会;

关键词：

ETA-PI; MESON PRODUCTION; ANNIHILATION; STATE; QCD;

D O I：

10.1016/j.physletb.2014.11.058

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Exclusive production of eta pi(-) and eta'pi(-) in has been studied with a 191 GeV/c pi(-) beam impinging on a hydrogen target at COMPASS (CERN). Partial-wave analyses reveal different odd/even angular momentum (L) characteristics in the inspected invariant mass range up to 3 GeV/c(2). A striking similarity between the two systems is observed for the L = 2, 4, 6 intensities (scaled by kinematical factors) and the relative phases. The known resonances a(2)(1320) and a(4)(2040) are in line with this similarity. In contrast, a strong enhancement of eta'pi(-) over eta pi(-) is found for the L = 1, 3, 5 waves, which carry non-qq quantum numbers. The L = 1 intensity peaks at 1.7 GeV/c(2) in in and at 1.4 GeV/c(2) in eta pi(-), the corresponding phase motions with respect to L = 2 are different. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：303 / 311

页数：9

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