A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c

被引：43

作者：

Barberis, D ^{[1
]}

Beusch, W

Binon, FG

Blick, AM

Close, FE

Danielsen, KM

Dolgopolov, AV

Donskov, SV

Earl, BC

Evans, D

French, BR

Hino, T

Inaba, S

Inyakin, AV

Ishida, T

Jacholkowski, A

Jacobsen, T

Jones, GT

Khaustov, GV

Kinashi, T

Kinson, JB

Kirk, A

Klempt, W

Kolosov, V

Kondashov, AA

Lednev, AA

Lenti, V

Maljukov, S

Martinengo, P

Minashvili, I

Myklebost, K

Nakagawa, T

Norman, KL

Olsen, JM

Peigneux, JP

Polovnikov, SA

Polyakov, VA

Romanovsky, V

Rotscheidt, H

Rumyantsev, V

Russakovich, N

Samoylenko, VD

Semenov, A

Sene, M

Sene, R

Shagin, PM

Shimizu, H

Singovsky, AV

Sobol, A

Solovjev, A

机构：

[1] LAPP, IN2P3, Annecy, France

[2] Univ Athens, Dept Phys, Athens, Greece

[3] Univ Bergen, Bergen, Norway

[4] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[5] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[6] IHEP, Protvino, Russia

[7] JINR, Dubna, Russia

[8] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan

[9] Miyazaki Univ, Fac Engn, Miyazaki 88921, Japan

[10] Osaka Univ, RCNP, Osaka, Japan

[11] Univ Oslo, Oslo, Norway

[12] Tohoku Univ, Fac Sci, Aoba Ku, Sendai, Miyagi 980, Japan

[13] Yamagata Univ, Fac Sci, Yamagata 990, Japan

来源：

PHYSICS LETTERS B | 1998年 / 427卷 / 3-4期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/S0370-2693(98)00403-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A study has been made of pseudoscalar mesons produced centrally in pp interactions. The results show that the eta and eta' appear to have a similar production mechanism which differs from that of the pi(0). The production properties of the eta and eta' are not consistent with what is expected from double Porneron exchange. In addition the production mechanism for the eta and eta' is such that the production cross section are greatest when the azimuthal angle between the p(T) vectors of the two protons is 90 degrees. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：398 / 402

页数：5

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