Spectral patterns in the nonstrange baryon spectrum

نویسندگان

  • P. González
  • J. Vijande
  • A. Valcarce
  • H. Garcilazo
چکیده

We extract, from a quark model potential that reproduces the number and ordering of nonstrange baryonic resonances up to 2.3 GeV, the quantum numbers for the dominant configurations in the ground and first non-radial excited states. From the pattern of quantum numbers we identify, from data, spectral regularities that allow us to predict the expected high spin low-lying spectrum from 2.3 to 3.0 GeV. N −∆ degeneracies and N parity doublets showing up can be interpreted in terms of a simple dynamics.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A SU ( 4 ) ⊗ O ( 3 ) scheme for nonstrange baryons

A SU (4) ⊗ O(3) scheme for nonstrange baryons Abstract. We show that nonstrange baryon resonances can be classified according to multiplets of SU (4)⊗ O(3). We identify spectral regularities and degeneracies that allow us to predict the high spin spectrum from 2 to 3 GeV.

متن کامل

Implications of the Crystal Barrel data for meson-baryon symmetries

Making use of numerous resonances discovered by the Crystal Barrel Collaboration we discuss some possible relations between the baryon and meson spectra of resonances composed of the light nonstrange quarks. Our goal is to indicate new features that should be reproduced by the realistic dynamical models describing the hadron spectrum in the sector of light quarks. The observation of more than t...

متن کامل

Towards Understanding Spectral Degeneracies in Nonstrange Hadrons. Part I: Mesons as Hadron Strings vs. Phenomenology

The spectroscopic regularities of modern empirical data on the nonstrange mesons up to 2.4 GeV can be summarized as a systematic clustering of states near certain values of energy. It is getting evident that some unknown X-symmetry triggers the phenomenon. We perform a thorough phenomenological check of a recently proposed formula M 2 ∼ L + n, which explains the X-symmetry. A semiclassical hadr...

متن کامل

Power Spectral Density Analysis of Purkinje Cell Tonic and Burst Firing Patterns From a Rat Model of Ataxia and Riluzole Treated

Introduction: Purkinje Cell (PC) output displays a complex firing pattern consisting of high frequency sodium spikes and low frequency calcium spikes, and disruption in this firing behavior may contribute to cerebellar ataxia. Riluzole, neuroprotective agent, has been demonstrated to have neuroprotective effects in cerebellar ataxia. Here, the spectral analysis of PCs firing in control, 3-acety...

متن کامل

Quasi-two-body decays of nonstrange baryons.

We examine the decays of nonstrange baryons to the final states ∆π, Nρ, Nη, Nη, Nω, N 1 2 + (1440)π, and ∆32 + (1600)π, in a relativized pair-creation (P0) model which has been developed in a previous study of the Nπ decays of the same baryon states. As it is our goal to provide a guide for the possible discovery of new baryon states at CEBAF and elsewhere, we examine the decays of resonances w...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006