Contact terms in γγ→π+π-π+π- transitions

C. Ayala; A. Bramon; F. Cornet

doi:10.1016/0370-2693(81)90819-4

Contact terms in γγ→π⁺π^-π⁺π^- transitions

C. Ayala, A. Bramon, F. Cornet

Department of Physics

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

2 Citations (Scopus)

Abstract

The contribution of contact terms (originated by gauge invariance) to the γγ→ρ{variant}0π+π- transition is evaluated. They are shown to play an essential role in order to explain the large cross section of γγ → π+π-π+π- and the π+π- invariant mass distributions recently observed at PETRA and SPEAR. © 1981.

Original language	English
Pages (from-to)	235-237
Journal	Physics Letters B
Volume	107
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(81)90819-4
Publication status	Published - 10 Dec 1981

Access to Document

10.1016/0370-2693(81)90819-4

Cite this

@article{8b65f4077df94900a43a7a2a43d18768,

title = "Contact terms in γγ→π+π-π+π- transitions",

abstract = "The contribution of contact terms (originated by gauge invariance) to the γγ→ρ{variant}0π+π- transition is evaluated. They are shown to play an essential role in order to explain the large cross section of γγ → π+π-π+π- and the π+π- invariant mass distributions recently observed at PETRA and SPEAR. {\textcopyright} 1981.",

author = "C. Ayala and A. Bramon and F. Cornet",

year = "1981",

month = dec,

day = "10",

doi = "10.1016/0370-2693(81)90819-4",

language = "English",

volume = "107",

pages = "235--237",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Contact terms in γγ→π+π-π+π- transitions

AU - Ayala, C.

AU - Bramon, A.

AU - Cornet, F.

PY - 1981/12/10

Y1 - 1981/12/10

N2 - The contribution of contact terms (originated by gauge invariance) to the γγ→ρ{variant}0π+π- transition is evaluated. They are shown to play an essential role in order to explain the large cross section of γγ → π+π-π+π- and the π+π- invariant mass distributions recently observed at PETRA and SPEAR. © 1981.

AB - The contribution of contact terms (originated by gauge invariance) to the γγ→ρ{variant}0π+π- transition is evaluated. They are shown to play an essential role in order to explain the large cross section of γγ → π+π-π+π- and the π+π- invariant mass distributions recently observed at PETRA and SPEAR. © 1981.

U2 - 10.1016/0370-2693(81)90819-4

DO - 10.1016/0370-2693(81)90819-4

M3 - Article

SN - 0370-2693

VL - 107

SP - 235

EP - 237

JO - Physics Letters B

JF - Physics Letters B

IS - 3

ER -

Contact terms in γγ→π+π-π+π- transitions

Abstract

Access to Document

Fingerprint

Cite this

Contact terms in γγ→π⁺π^-π⁺π^- transitions