SHAPE DISTORTIONS OF MESON RESONANCES PRODUCED IN HADRON INTERACTIONS AT P(T)GREATER-THAN-OR-EQUAL-TO-2GEV/C

被引：0

作者：

BELLOGIANNI, A

BENAYOUN, M

BLOODWORTH, IJ

CARNEY, JN

DIBARI, D

ELIA, D

FINI, R

FRENCH, BR

GHIDINI, B

JACHOLKOWSKI, A

KAHANE, J

KINSON, JB

KIRK, A

KNUDSON, K

LENTI, V

LERUSTE, P

MALAMANT, A

MANZARI, V

NARJOUX, JL

NAVACH, F

QUERCIGH, E

SARIK, K

SENE, M

SENE, R

STASSINAKI, M

TRAINOR, MT

VASSILIADIS, G

VICHOU, I

BAILLIE, OV

VOLTE, A

VOTRUBA, MF

ZITOUN, R

机构：

[1] COLL FRANCE,PHYS CORPUSCULAIRE LAB,F-75231 PARIS 05,FRANCE

[2] UNIV BIRMINGHAM,DEPT PHYS,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

[3] SEZ INFN,BARI,ITALY

[4] UNIV BARI,DIPARTIMENTO FIS,I-70124 BARI,ITALY

[5] CERN,EUROPEAN ORG NUCL RES,CH-1211 GENEVA 23,SWITZERLAND

[6] UNIV PARIS 06,LPNHE,F-75005 PARIS,FRANCE

[7] UNIV PARIS 07,F-75221 PARIS 05,FRANCE

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1994年 / 61卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the shape of the invariant mass spectra of several resonances produced at p(T) greater-than-or-equal-to 2.0 GeV/c and observed through two-particle final states, namely the f2(1270), K*(892), KBAR*(892), K*(1430), and KBAR*(1430) mesons. The data sample comes from pi- Be interactions at P(lab) = 150 GeV/c and 300 GeV/c which have been collected using the OMEGA spectrometer at CERN. We find that although these meson resonances have their masses and widths consistent with the corresponding world average values, their shapes are all subject to the same kind of distortion: their low-mass tail is enhanced while their high-mass tail is sharply cut. This observation indicates that meson resonances produced in the fragmentation of quarks and gluons are distorted by the same damping factor in a way which preserves their masses and lifetimes.

引用

页码：371 / 381

页数：11

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