On the Partial-Wave Analysis of Mesonic Resonances Decaying to Multiparticle Final States Produced by Polarized Photons

Journal Article · Tue Apr 01 00:00:00 EDT 2014 · Physics Reports

DOI:https://doi.org/10.1016/j.physrep.2013.11.005· OSTI ID:1126918

Salgado, Carlos W. ^[1]; Weygand, Dennis P. ^[2]

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1. Norfolk State University, Norfolk, VA (United States) and Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
2. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Meson spectroscopy is going through a revival with the advent of high statistics experiments and new advances in the theoretical predictions. The Constituent Quark Model (CQM) is finally being expanded considering more basic principles of field theory and using discrete calculations of Quantum Chromodynamics (lattice QCD). These new calculations are approaching predictive power for the spectrum of hadronic resonances and decay modes. It will be the task of the new experiments to extract the meson spectrum from the data and compare with those predictions. The goal of this report is to describe one particular technique for extracting resonance information from multiparticle final states. The technique described here, partial wave analysis based on the helicity formalism, has been used at Brookhaven National Laboratory (BNL) using pion beams, and Jefferson Laboratory (Jlab) using photon beams. In particular this report broaden this technique to include production experiments using linearly polarized real photons or quasi-real photons. This article is of a didactical nature. We describe the process of analysis, detailing assumptions and formalisms, and is directed towards people interested in starting partial wave analysis.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (United States)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 1126918
• Report Number(s): JLAB-PHY-13-1821; DOE/OR/23177-2937; arXiv:1310.7498; National Science Foundation grants # 0855338 and # 1205763; TRN: US1400278
• Journal Information: Physics Reports, Vol. 537; ISSN 0370-1573
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS