Rare Kaon Decays at CERN SPS

Journal Article · Thu Jan 21 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3322595· OSTI ID:21371502

Kozhuharov, Venelin ^[1]

---

1. Atomic Phys. Dept., Faculty of Physics, University of Sofia, 5 J. Bourchier Str., 1164 Sofia (Bulgaria)

Since their discovery the K-mesons continue to provide valuable information to the theory of the interactions between the elementary particles. In two years of data taking the NA48/2 experiment at CERN SPS recorded more than 4 billion K{sup +}-->pi{sup +}pi{sup -}pi{sup +}- decays devoted to the search of CP violation in the charged kaon system. The huge statistics allows also a precise study of rare kaon decays. The results from the investigation of K{sup +}-->pi{sup +}-e{sup +}e{sup -} decay will be shown with their interpretation within several theoretical models. The continuation of the kaon program at CERN is the NA62 experiment devoted to the measurement of Br(K{sup +}-->pi{sup +}-vnu-bar) decay with a precision of 10% in two years of data taking. The planned detector setup and the expected background and signal events will be presented. During 2007 a dedicated run devoted to NA62 prototype tests and study of K{sub e2} decays was taken. The preliminary results from the study of K{sub e2} decays and the ratio R{sub K} GAMMA(K{sup +}-->e{sup +}-nu)/GAMMA(K{sup +}-->mu{sup +}-mu) at the NA48/2 and NA62 experiments will be shown.

• OSTI ID: 21371502
• Journal Information: AIP Conference Proceedings, Vol. 1203, Issue 1; Conference: 7. international conference of the Balkan Physical Union, Alexandroupolis (Greece), 9-13 Sep 2009; Other Information: DOI: 10.1063/1.3322595; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
CERN SPS SYNCHROTRON
CP INVARIANCE
ELECTRONS
KAONS
KAONS MINUS
KAONS PLUS
MESON-MESON INTERACTIONS
MULTIPARTICLE SPECTROMETERS
NEUTRAL CURRENTS
PARTICLE IDENTIFICATION
PIONS MINUS
PIONS PLUS
STANDARD MODEL
STATISTICS
WEAK INTERACTIONS
ACCELERATORS
ALGEBRAIC CURRENTS
BASIC INTERACTIONS
BOSONS
CURRENTS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTONS
MATHEMATICAL MODELS
MATHEMATICS
MEASURING INSTRUMENTS
MESONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
SPECTROMETERS
STRANGE MESONS
STRANGE PARTICLES
SYNCHROTRONS
UNIFIED GAUGE MODELS