National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:
Download PDFDownload PDF
Download

Excited D(sub s) (and Pentaquarks) in Chiral Perturbation Theory.


DE2005841359

Publication Date 2005
Personal Author Mehen, T.
Page Count 14
Abstract The author presents results of a heavy hadron chiral perturbation theory analysis of the decays and masses of the recently discovered excited charm mesons. The present data on the electromagnetic branching ratios are consistent with heavy quark symmetry predictions and disfavor a molecular interpretation of these states. He also discusses model independent predictions for the strong decays of pentaquarks in the 10-bar representation of SU(3) which can be used to constrain the angular momentum and parity quantum numbers of these states.
Keywords
  • Chiral symmetry
  • Quarks
  • Perturbation theory
  • Angular momentum
  • Branching ratio
  • Hadrons
  • Mesons
  • Parity
  • Quantum numbers
  • Spectroscopy
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Duke Univ., Durham, NC. Dept. of Physics.; Department of Energy, Washington, DC.; Jefferson Lab., Newport News, VA.
Supplemental Notes Prepared in cooperation with Jefferson Lab., Newport News, VA. Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200607
Excited D(sub s) (and Pentaquarks) in Chiral Perturbation Theory.
Excited D(sub s) (and Pentaquarks) in Chiral Perturbation Theory.
DE2005841359

  • Chiral symmetry
  • Quarks
  • Perturbation theory
  • Angular momentum
  • Branching ratio
  • Hadrons
  • Mesons
  • Parity
  • Quantum numbers
  • Spectroscopy
  • Technical Information Center Oak Ridge Tennessee
Loading