Observation of pseudoscalar and axial vector resonances in π- p→K+K-π0n at 18 GeV

被引：27

作者：

Adams, GS ^{[1
]}

Adams, T

Bar-Yam, Z

Bishop, JM

Bodyagin, VA

Brown, DS

Cason, NM

Chung, SU

Cummings, JP

Danyo, K

Demianov, AI

Denisov, S

Dorofeev, V

Dowd, JP

Eugenio, P

Fan, XL

Gribushin, AM

Hackenburg, RW

Hayek, M

Hu, J

Ivanov, EI

Joffe, D

Kachaev, I

Kern, W

King, E

Kodolova, OL

Korotkikh, VL

Kostin, MA

Kuhn, J

Lipaev, V

Losecco, JM

Lu, M

Manak, JJ

Napolitano, J

Nozar, M

Olchanski, C

Ostrovidov, AI

Pedlar, TK

Popov, A

Ryabchikov, D

Sanjari, AH

Sarycheva, LI

Seth, KK

Shenhav, N

Shen, X

Shephard, WD

Sinev, NB

Stienike, DL

Taegar, SA

Thompson, DR

机构：

[1] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA

[2] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[3] Univ Massachusetts, Dept Phys, N Dartmouth, MA 02747 USA

[4] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia

[5] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA

[6] Brookhaven Natl Lab, Upton, NY 11973 USA

[7] Protvino High Energy Phys Inst, Protvino 142284, Russia

[8] Thomas Jefferson Natl Accelerator Facil, Dept Phys, Newport News, VA 23606 USA

[9] RAFAEL, IL-31021 Haifa, Israel

[10] Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

PHYSICS LETTERS B | 2001年 / 516卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(01)00951-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The number of pseudoscalar mesons in the mass range from 1400 to 1500 MeV/c(2) has been a subject of considerable interest for many years, with several experiments having presented evidence for two closely spaced states. A new measurement of the reaction pi (-)p --> K(+)K(-)pi (0)n has been made at a beam energy of 18 GeV. A partial wave analysis of the K(+)K(-)pi (0) system shows evidence for three pseudoscalar resonances, eta (1295), eta (1416), and eta (1485), as well as two axial vectors, f(1)(1285), and f(1)(1420). Their observed masses, widths and decay properties are reported. No signal was observed for C(1480), an I-G J(PC) = 1(+)1(--) state previously reported in phi pi (0) decay. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：264 / 272

页数：9

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