Study of the pi(0)pi(0) system in pp central collisions at 450 GeV/c

被引：63

作者：

Alde, D

Bellazzini, R

Binon, FG

Boutemeur, M

Brez, A

Bricman, C

Donskov, SV

Gouanere, M

Inaba, S

Inyakin, AV

Ishida, T

Kawai, H

Khaustov, GV

Kinashi, T

Kobayashi, M

Knapp, EA

Kondashov, AA

Kulik, AV

Landsberg, GL

Lednev, AA

Lishin, VA

Massai, MM

Nakagawa, T

Nakamura, T

Peigneux, JP

Polovnikov, SA

Polyakov, VA

Poulet, M

Prokoshkin, YD

Sadovsky, SA

Samoylenko, VD

Shagin, PM

Shimizu, H

Shtannikov, AV

Singovsky, AV

Stroot, JP

Sugonyaev, VP

Takamatsu, K

Torquati, MR

Tsuru, T

Yasu, Y

机构：

[1] UNIV CALIF LOS ALAMOS NATL LAB, LOS ALAMOS, NM USA

[2] UNIV PISA, PISA, ITALY

[3] IST NAZL FIS NUCL, PISA, ITALY

[4] FREE UNIV BRUSSELS, B-1050 BRUSSELS, BELGIUM

[5] CERN, LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[6] LAB ANNECY LE VIEUX PHYS PARTICULES, F-74019 ANNECY LE VIEUX, FRANCE

[7] INST HIGH ENERGY PHYS, PROTVINO 142284, RUSSIA

[8] CHIBA UNIV, INAGE KU, CHIBA 263, JAPAN

[9] NUCL PHYS RES CTR, OSAKA, JAPAN

[10] TOHOKU UNIV, AOBA KU, SENDAI, MIYAGI 980, JAPAN

[11] MIYAZAKI UNIV, MIYAZAKI 88921, JAPAN

[12] YAMAGATA UNIV, YAMAGATA 990, JAPAN

[13] INST INTERUNIV SCI NUCL, BRUSSELS, BELGIUM

来源：

PHYSICS LETTERS B | 1997年 / 397卷 / 3-4期

关键词：

pp central collision; Double pomeron exchange; pi(0)pi(0) events below 1 GeV;

D O I：

10.1016/S0370-2693(97)00228-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effective mass spectrum of pi(0) pairs produced in pp central collisions (pp --> pf pi(0) pi(0)p(s)) at 450 GeV/c, root s = 29 GeV, below 1 GeV differs from that observed in peripheral charge exchange reactions, In particular, there is a large number of events between pi pi-threshold and 1 GeV, that interfere with f(0)(980) destructively. The possible existence of a broad S-wave state is suggested. (C) 1997 Published by Elsevier Science B.V.

引用

页码：350 / 356

页数：7

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