PION DEUTERON ELASTIC-SCATTERING AT LARGE ANGLES FROM 0.90 TO 2.025 GEV/C

被引：5

作者：

ABRAMOV, BM

BULYCHJOV, SA

DRUZHININ, BL

DUKHOVSKOY, IA

FEDORETS, VS

KISHKURNO, VV

KONDRATYUK, LA

KRESTNIKOV, YS

KRUTENKOVA, AP

KULIKOV, VV

KUZICHEV, VF

MATSUK, MA

MURAT, PA

PROSHIN, SV

RADKEVICH, IA

TKACH, NG

TURDAKINA, EN

BAGDASARYAN, LS

机构：

[1] ITEP,MOSCOW 117259,USSR

[2] YPI,YEREVAN 375001,ARMENIA,USSR

来源：

NUCLEAR PHYSICS A | 1992年 / 542卷 / 04期

关键词：

H-2(PI-PI-); E AT 0.9-2.02 GEV; MEASURED SIGMA(THETA); DEDUCED REACTION MECHANISM; DIBARYONS;

D O I：

10.1016/0375-9474(92)90258-L

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The differential cross section for the backward (120-degrees less-than-or-equal-to theta(c.m.s.) less-than-or-equal-to 180-degrees) pion-deuteron elastic scattering was measured at eight incident pion momenta from 0.90 to 2.025 GeV/ c. A distinctive change in the shape of the angular distribution is observed. At 0.9 GeV/c the differential cross section decreases smoothly to 180-degrees in accordance with predictions of multiple-scattering theory. At 1.31 GeV/c, i.e. in the region of the hypotbetical I-1(6), dibaryon with a mass of 2.9 GeV, the differential cross section is practically independent of angle. At higher energies a sharp backward peak is clearly seen. Connections of our results with dibaryons and Regge asymptotic behaviour are discussed.(~)[GRAPHICS]

引用

页码：579 / 586

页数：8

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