Ξ− and Ω distributions in hadron–nucleus interactions
نویسندگان
چکیده
Strange baryons have long been known to exhibit a leading particle effect. A recent comparison of Ξ− production in π− , n, and Σ− interactions with nuclei show this effect clearly. These data are supplemented by earlier measurements of Ξ− and Ω production by a Ξ− beam. We calculate the Ξ− and Ω xF distributions and nuclear dependence in hA interactions using the intrinsic model. PACS: 12.38.Lg; 13.85.Ni; 14.20.Jn
منابع مشابه
ar X iv : h ep - p h / 03 02 10 9 v 1 1 3 Fe b 20 03 LBNL - 52160 Ξ − and Ω Distributions in Hadron - Nucleus Interactions 1
Strange baryons have long been known to exhibit a leading particle effect. A recent comparison of Ξ − production in π − , n, and Σ − interactions with nuclei show this effect clearly. These data are supplemented by earlier measurements of Ξ − and Ω production by a Ξ − beam. We calculate the Ξ − and Ω x F distributions and nuclear dependence in hA interactions using the intrinsic model.
متن کاملChemical and thermal freeze-out of identified hadrons at the LHC
This proceedings contribution briefly summarizes our recent VISHNU hybrid model investigations on the chemical and thermal freeze-out of various hadrons species in 2.76 A TeV Pb+Pb collisions. Detailed analysis on the evolution of particle yields and the last elastic collisions distributions during the hadronic evolution reveals that the two multi-strange hadrons, Ξ and Ω, experience early chem...
متن کامل0 Asymmetries in the production of Λ 0 , Ξ − , and Ω − hyperons in 500 GeV / c π − – Nucleon Interactions
Using data from Fermilab fixed-target experiment E791, we have measured particleantiparticle production asymmetries for Λ , Ξ, and Ω hyperons in π – nucleon interactions at 500 GeV/c. The asymmetries are measured as functions of Feynmanx (xF ) and p 2 T over the ranges −0.12 ≤ xF ≤ 0.12 and 0 ≤ pT ≤ 4(GeV/c) . We find substantial asymmetries, even at xF = 0. We also observe leading-particle-typ...
متن کاملStrange and Multi-Strange Particle Production in ALICE
The production of strange and multi-strange hadrons in proton-proton (pp) and lead-lead (Pb-Pb) collisions is studied with the ALICE experiment at the CERN LHC. These particles are reconstructed via their weak decay topologies, exploiting the tracking and particle identification capabilities of ALICE. Measurements of central rapidity yields of Λ, Ξ− and Ω− baryons, their antiparticles and KS me...
متن کاملHIPPOPO a Monte Carlo generator for particle production in the Quark Gluon String Model
HIPPOPO (Hadron Induced Particle Production Off Pomeron Outpour) is a program to simulate the production of hadrons via the multipomeron exchange mechanism in a high energy hadron collision. The underlying algorithm is based upon the Quark Gluon String Model developed over the years by many authors [1]-[20]. For the initial colliding beams the User can choose among the following species: nucleo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003