J 2018

Common explanation of the behavior of some e(+)e(-) annihilation processes around root s = 1.9 GeV

LICHARD, Peter

Basic information

Original name

Common explanation of the behavior of some e(+)e(-) annihilation processes around root s = 1.9 GeV

Authors

LICHARD, Peter (203 Czech Republic, guarantor, belonging to the institution)

Edition

Physical Review D, 2018, 2470-0010

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10303 Particles and field physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19240/18:A0000240

Organization unit

Faculty of Philosophy and Science in Opava

DOI

UT WoS

000454634400004

Keywords in English

annihilation process; 1.9 GeV/c^2; resonances; rho(1900)

Tags

International impact, Reviewed

Links

LTI17018, research and development project.
Změněno: 5/4/2019 10:10, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

We show that the behavior of the excitation curves of some e^+e^- annihilation processes close to the nucleon-antinucleon threshold can be explained either by the rho(1900) resonance itself or by its interference with other resonances. Besides the six-pion annihilation and the e^+e^- -> K^+K^- pi^+pi^- and e^+e^- -> phi pi^0 processes, we also analyze the final states eta pi^+pi^-, K^+K^-pi^+pi^-pi^0, and K^+K^-pi^0pi^0, the behavior of which around 1.9 GeV has not yet attracted attention. Analysis of the data on the e^+e^- -> p (p over bar) and e^+e^- -> n (n over bar) reactions clearly shows that the rho(1900) resides above the n (n over bar) threshold.