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Title: Kaon Physics

Abstract

Recent results and future prospects for kaon physics experiments at Fermilab, CERN, KEK and BNL are reviewed. Topics include recent measurements of the CKM parameter Vus and searches for new physics using rare decays.

Authors:
 [1]
  1. Fermi National Accelerator Laboratory, Batavia, IL 60510 (United States)
Publication Date:
OSTI Identifier:
20798037
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 815; Journal Issue: 1; Conference: 25. international conference on physics in collision, Prague (Czech Republic), 5-9 Jul 2005; Other Information: DOI: 10.1063/1.2173587; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BNL; CERN; FERMILAB; JAPANESE ORGANIZATIONS; KAONS; KOBAYASHI-MASKAWA MATRIX; LEPTONIC DECAY; STANDARD MODEL

Citation Formats

Ray, Ronald E. Kaon Physics. United States: N. p., 2006. Web. doi:10.1063/1.2173587.
Ray, Ronald E. Kaon Physics. United States. doi:10.1063/1.2173587.
Ray, Ronald E. Wed . "Kaon Physics". United States. doi:10.1063/1.2173587.
@article{osti_20798037,
title = {Kaon Physics},
author = {Ray, Ronald E.},
abstractNote = {Recent results and future prospects for kaon physics experiments at Fermilab, CERN, KEK and BNL are reviewed. Topics include recent measurements of the CKM parameter Vus and searches for new physics using rare decays.},
doi = {10.1063/1.2173587},
journal = {AIP Conference Proceedings},
number = 1,
volume = 815,
place = {United States},
year = {Wed Feb 08 00:00:00 EST 2006},
month = {Wed Feb 08 00:00:00 EST 2006}
}
  • With the running B, kaon and neutrino physics experiments, flavour physics takes centre stage within today's particle physics. We discuss the opportunities offered by these experiments in our search for new physics beyond the SM. We focus on rare B and kaon decays, highlighting specific observables in an examplary mode. Moreover, we briefly discuss the restrictive role of long-distance strong interactions and some new tools such as QCD factorization and SCET to handle them.
  • Using diagrammatic techniques we have obtained a new operator for the process p(..gamma..,K/sup +/)..lambda../sup 0/ which includes the Born terms in addition to resonances in the s and u channel near threshold. The coupling constants are obtained by a least squares fit to cross section and polarization data for photon energies from threshold through 1400 MeV. We find a number of changes from the earlier operator obtained by Thom about twenty years ago when less data were available. To aid in comparing this operator to other work, we give its multipole decomposition in the center of mass frame, and tomore » aid in its use in nuclear physics we write out the operator in a frame fixed in the nucleus and, further, take the nonrelativistic limit of the operator as Blomqvist and Laget did for the pion photoproduction case. Finally, we discuss the validity of the nonrelativistic limit of this operator.« less
  • Recent progress and future prospects in Kaon physics are summarized. I will mainly concentrate on the developments concerning the following four observables: {epsilon}'/{epsilon}, {epsilon}K, the Cabibbo angle and the rare Kaon decays.
  • The KLOE experiment at DA{phi}NE has collected {approx} 450 pb-1 of e+e- collisions at center of mass energy W {approx} 1.02 GeV. Final results on the BR(KS {yields} 3{pi}0), KL dominant Branching ratio, KL lifetime and the extraction of the CKM parameter Vus are presented.