J 2020

Manifestation of kaonium in the e(+) e(-) -> K+ K- process

LICHARD, Peter

Basic information

Original name

Manifestation of kaonium in the e(+) e(-) -> K+ K- process

Authors

LICHARD, Peter (703 Slovakia, guarantor, belonging to the institution)

Edition

Physical Review D, US - Spojené státy americké, 2020, 1550-7998

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/20:A0000074

Organization unit

Institute of physics in Opava

DOI

UT WoS

000540165400001

Keywords in English

DETECTOR; ATOMS; DECAY

Tags

Tags

International impact, Reviewed

Links

LTI17018, research and development project.
Změněno: 23/3/2021 01:33, Mgr. Pavlína Jalůvková

Abstract

V originále

We analyze the precise data obtained by the CMD-3 experiment on the e(+)e(-) annihilation into two charged kaons in the vicinity of the peak. A perfect fit is obtained only if a pole on the real axis below the reaction threshold is assumed. This can be interpreted as proof of the existence of the 2p state of kaonium, a compound of K+ and K-. The BABAR Collaboration data on the same process supports this conclusion and, in addition, points to the strong interaction as a dominant source of the binding energy. The possibility of discovering 2p kaonium in the e(+) e(-) -> pi(+)pi(-) process is discussed. The 2p state of K-0-onium is indicated on the basis of the CMD-3 e(+)e(-)-> K-S(0) K-L(0) data.