Another look at ππ scattering in the scalar channel

Keiji Igi; Ken Ichi Hikasa

Another look at ππ scattering in the scalar channel

Keiji Igi, Ken Ichi Hikasa

SCI - Physics

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

We set up a general framework to describe ππ scattering below 1 GeV based on chiral low-energy expansion with possible spin-0 and -1 resonances. Partial wave amplitudes are obtained with the N/D method, which satisfy unitarity, analyticity, and approximate crossing symmetry. A comparison with the phase shift data in the J=0 channel favors a scalar resonance near the ρ mass.

Original language	English
Article number	034005
Pages (from-to)	1-9
Number of pages	9
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	59
Issue number	3
Publication status	Published - 1999 Feb 1

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Another look at ππ scattering in the scalar channel'. Together they form a unique fingerprint.

Cite this

@article{6c2dd4f744804568a7924656bcdf97e3,

title = "Another look at ππ scattering in the scalar channel",

abstract = "We set up a general framework to describe ππ scattering below 1 GeV based on chiral low-energy expansion with possible spin-0 and -1 resonances. Partial wave amplitudes are obtained with the N/D method, which satisfy unitarity, analyticity, and approximate crossing symmetry. A comparison with the phase shift data in the J=0 channel favors a scalar resonance near the ρ mass.",

author = "Keiji Igi and Hikasa, {Ken Ichi}",

year = "1999",

month = feb,

day = "1",

language = "English",

volume = "59",

pages = "1--9",

journal = "Physical review D: Particles and fields",

issn = "0556-2821",

publisher = "American Institute of Physics",

number = "3",

}

TY - JOUR

T1 - Another look at ππ scattering in the scalar channel

AU - Igi, Keiji

AU - Hikasa, Ken Ichi

PY - 1999/2/1

Y1 - 1999/2/1

N2 - We set up a general framework to describe ππ scattering below 1 GeV based on chiral low-energy expansion with possible spin-0 and -1 resonances. Partial wave amplitudes are obtained with the N/D method, which satisfy unitarity, analyticity, and approximate crossing symmetry. A comparison with the phase shift data in the J=0 channel favors a scalar resonance near the ρ mass.

AB - We set up a general framework to describe ππ scattering below 1 GeV based on chiral low-energy expansion with possible spin-0 and -1 resonances. Partial wave amplitudes are obtained with the N/D method, which satisfy unitarity, analyticity, and approximate crossing symmetry. A comparison with the phase shift data in the J=0 channel favors a scalar resonance near the ρ mass.

UR - http://www.scopus.com/inward/record.url?scp=17044382107&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17044382107&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:17044382107

VL - 59

SP - 1

EP - 9

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 3

M1 - 034005

ER -