Shape distortions of meson resonances produced in hadron interactions atP T≧2 GeV/c | Zendy

A. Bellogianni | Zendy; M. Benayoun | Zendy; I.J. Bloodworth | Zendy; J.N. Carney | Zendy; D. Di Bari | Zendy; D. Elia | Zendy; R. Fini | Zendy; B.R. French | Zendy; B. Ghidini | Zendy; A. Jachołkowski | Zendy; J. Kâhane | Zendy; J.B. Kinson | Zendy; A. Kirk | Zendy; K. Knudson | Zendy; V. Lenti | Zendy; Ph. Leruste | Zendy; A. Malamant | Zendy; V. Manzari | Zendy; J.L. Narjoux | Zendy; F. Navach | Zendy; E. Quercigh | Zendy; K. Šařík | Zendy; M. Sené | Zendy; R. Sené | Zendy; M. Stassinaki | Zendy; M.T. Trainor | Zendy; G. Vassiliadis | Zendy; I. Vichou | Zendy; O. Villalobos Baillie | Zendy; A. Volte | Zendy; M.F. Votruba | Zendy; R. Zitoun | Zendy

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Shape distortions of meson resonances produced in hadron interactions atP T≧2 GeV/c

Author(s) -

A. Bellogianni,

M. Benayoun,

I.J. Bloodworth,

J.N. Carney,

D. Di Bari,

D. Elia,

R. Fini,

B.R. French,

B. Ghidini,

A. Jachołkowski,

J. Kâhane,

J.B. Kinson,

A. Kirk,

K. Knudson,

V. Lenti,

Ph. Leruste,

A. Malamant,

V. Manzari,

J.L. Narjoux,

F. Navach,

E. Quercigh,

K. Šařík,

M. Sené,

R. Sené,

M. Stassinaki,

M.T. Trainor,

G. Vassiliadis,

I. Vichou,

O. Villalobos Baillie,

A. Volte,

M.F. Votruba,

R. Zitoun

Publication year - 1994

Publication title -

zeitschrift für physik c

Language(s) - English

Resource type - Journals

eISSN - 1431-5858

pISSN - 0170-9739

DOI - 10.1007/bf01413176

Subject(s) - physics , meson , hadron , nuclear physics , particle physics , invariant mass , large hadron collider , fragmentation (computing) , quark , omega , gluon , quark–gluon plasma , quantum mechanics , computer science , operating system

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

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