Unitarity effects in pion-production isobar amplitudes
Journal Article
·
· Phys. Rev., D, v. 12, no. 7, pp. 1984-1991
In isobar analyses, the amplitude for particle + particle $Yields$ particle + isobar usually is taken to be independent of the mass of the isobar, but Aaron and Amado have shown this approximation to be inconsistent with unitarity. Here we continue that work by calculating numerically the absorptive (mass-dependent) part of isobar amplitudes in the case of $pi$N $Yields$ $pi$$pi$N by using the recent world analysis of 200 000 resonance region events. We find large effects. (AIP)
- Research Organization:
- Department of Physics, Northeastern University, Boston, Massachusetts 02115
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-015852
- OSTI ID:
- 4112963
- Journal Information:
- Phys. Rev., D, v. 12, no. 7, pp. 1984-1991, Journal Name: Phys. Rev., D, v. 12, no. 7, pp. 1984-1991; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
Similar Records
DETERMINATION OF THE PION-NUCLEON SCATTERING AMPLITUDE FROM DISPERSION RELATIONS AND UNITARITY. GENERAL THEORY
Amplitude analysis of resonant production in three pions
Three-body unitarity with isobars revisited
Journal Article
·
Fri Nov 14 23:00:00 EST 1958
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4272597
Amplitude analysis of resonant production in three pions
Conference
·
Mon Nov 28 23:00:00 EST 2016
· EPJ Web Conf.
·
OSTI ID:1338048
Three-body unitarity with isobars revisited
Journal Article
·
Thu Sep 07 20:00:00 EDT 2017
· European Physical Journal. A
·
OSTI ID:1389749