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Title: CP VIOLATION IN K DECAY FROM LATTICE QCD, RIKEN BNL RESEARCH CENTER, RBRC AND PARTICLE PHYSICS SEMINAR, BROOKHAVEN NATIONAL LABORATORY, UPTON, N.Y., JULY 26, 2001.

Abstract

The entire history of the discoveries of K{sub L}{sup o} and violations of T and CP began at Brookhaven. It is most appropriate for us to hold today's special seminar on CP Violation in K decay in this laboratory. Forty-five years ago, in the same paper on parity nonconservation, it was also pointed out that there is no proof of T symmetry in the weak interaction, nor of C invariance. That paper was submitted to the Physical Review (then, also located at BNL) on June 22, 1956. A month later, Lederman and his collaborators discovered a long-lived neutral V particle (now called K{sub L}{sup o}) at the Cosmotron using the cloud chamber. This discovery was presented as a rigorous proof of C symmetry. In the same summer at Brookhaven, in collaboration with Oehme and Yang, I did the analysis on the neutral kaon system, assuming T, C and CP violations (but based on CPT symmetry). In that work, the two non-orthogonal eigen-states {psi}{sub +} and {psi}{sub -} (now K{sub S}{sup o} and K{sub L}{sup o}) were characterized by a non-orthogonality parameter {alpha} ({approx_equal} 2 Re{epsilon} in today's notation), which was shown to be small, because of unitarity. We then wentmore » on to discuss the various decay modes of the long-lived and short-lived neutral kaons as tests of possible T and CP violations. The paper was completed in December 1956, before parity-nonconservation was experimentally established. Eight years later, the important discovery of CP violation was made by Christenson, Cronin, Fitch and Turlay at BNL.« less

Authors:
;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (US)
Sponsoring Org.:
BNL/RIKEN (US)
OSTI Identifier:
785043
Report Number(s):
BNL-52634; KB0201
R&D Project: PO03; KB0201; TRN: US0108326
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 26 Jul 2001
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 43 PARTICLE ACCELERATORS; DECAY; KAONS NEUTRAL; P INVARIANCE; QUANTUM CHROMODYNAMICS; SYMMETRY; UNITARITY; WEAK INTERACTIONS; T INVARIANCE; C INVARIANCE; HISTORICAL ASPECTS; BNL; RESEARCH PROGRAMS

Citation Formats

BLUM, T, MAWHINNEY, R, and RBRC BROOKHAVEN COLUMBIA QCDSP COLLABORATION. CP VIOLATION IN K DECAY FROM LATTICE QCD, RIKEN BNL RESEARCH CENTER, RBRC AND PARTICLE PHYSICS SEMINAR, BROOKHAVEN NATIONAL LABORATORY, UPTON, N.Y., JULY 26, 2001.. United States: N. p., 2001. Web. doi:10.2172/785043.
BLUM, T, MAWHINNEY, R, & RBRC BROOKHAVEN COLUMBIA QCDSP COLLABORATION. CP VIOLATION IN K DECAY FROM LATTICE QCD, RIKEN BNL RESEARCH CENTER, RBRC AND PARTICLE PHYSICS SEMINAR, BROOKHAVEN NATIONAL LABORATORY, UPTON, N.Y., JULY 26, 2001.. United States. doi:10.2172/785043.
BLUM, T, MAWHINNEY, R, and RBRC BROOKHAVEN COLUMBIA QCDSP COLLABORATION. Thu . "CP VIOLATION IN K DECAY FROM LATTICE QCD, RIKEN BNL RESEARCH CENTER, RBRC AND PARTICLE PHYSICS SEMINAR, BROOKHAVEN NATIONAL LABORATORY, UPTON, N.Y., JULY 26, 2001.". United States. doi:10.2172/785043. https://www.osti.gov/servlets/purl/785043.
@article{osti_785043,
title = {CP VIOLATION IN K DECAY FROM LATTICE QCD, RIKEN BNL RESEARCH CENTER, RBRC AND PARTICLE PHYSICS SEMINAR, BROOKHAVEN NATIONAL LABORATORY, UPTON, N.Y., JULY 26, 2001.},
author = {BLUM, T and MAWHINNEY, R and RBRC BROOKHAVEN COLUMBIA QCDSP COLLABORATION},
abstractNote = {The entire history of the discoveries of K{sub L}{sup o} and violations of T and CP began at Brookhaven. It is most appropriate for us to hold today's special seminar on CP Violation in K decay in this laboratory. Forty-five years ago, in the same paper on parity nonconservation, it was also pointed out that there is no proof of T symmetry in the weak interaction, nor of C invariance. That paper was submitted to the Physical Review (then, also located at BNL) on June 22, 1956. A month later, Lederman and his collaborators discovered a long-lived neutral V particle (now called K{sub L}{sup o}) at the Cosmotron using the cloud chamber. This discovery was presented as a rigorous proof of C symmetry. In the same summer at Brookhaven, in collaboration with Oehme and Yang, I did the analysis on the neutral kaon system, assuming T, C and CP violations (but based on CPT symmetry). In that work, the two non-orthogonal eigen-states {psi}{sub +} and {psi}{sub -} (now K{sub S}{sup o} and K{sub L}{sup o}) were characterized by a non-orthogonality parameter {alpha} ({approx_equal} 2 Re{epsilon} in today's notation), which was shown to be small, because of unitarity. We then went on to discuss the various decay modes of the long-lived and short-lived neutral kaons as tests of possible T and CP violations. The paper was completed in December 1956, before parity-nonconservation was experimentally established. Eight years later, the important discovery of CP violation was made by Christenson, Cronin, Fitch and Turlay at BNL.},
doi = {10.2172/785043},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {7}
}