Περίληψη:
We report the results of the CPLEAR experiment on CP-, T-, and
CPT-symmetries in the neutral kaon system. CP-violation parameters are
given for the K-0, (K) over bar(0) –> 2 pi, 3 pi decay channels. For
the first time, T-violation is measured by a direct method using
semileptonic decays. The CPT symmetry is tested through the parameters
Im(delta) with a precision of 10(-5) and Re(delta) with a precision of a
few 10(-4). With these two measurements, the difference in mass and
width of K-0 and (K) over bar(0) are bound to within 10(-18) GeV. In the
limit of CPT invariance in the neutral kaon decays, the K-0 and (K) over
bar(0) masses are equal within 10(-19) GeV.
Συγγραφείς:
Weber, P
Angelopoulos, A
Apostolakis, A
Aslanides, E and
Backenstoss, G
Bargassa, P
Behnke, O
Benelli, A
Bertin,
V
Blanc, F
Bloch, P
Carlson, P
Carroll, M
Cawley, E
and Chertok, MB
Danielsson, M
Dejardin, M
Derre, J and
Ealet, A
Eleftheriadis, CA
Faravel, L
Fetscher, W and
Fidecaro, M
Filipcic, A
Francis, D
Fry, J
Gabathuler, E
and Gamet, R
Gerber, HJ
Go, A
Haselden, A
Hayman, PJ and
Henry-Couannier, F
Hollander, RW
Jon-And, K
Kettle, PR and
Kokkas, P
Kreuger, R
Le Gac, R
Leimgruber, F
Mandic, I
and Manthos, N
Marel, G
Mikuz, M
Miller, J
Montanet, F
and Muller, A
Nakada, T
Pagels, B
Papadopoulos, I and
Pavlopoulos, P
Polivka, G
Rickenbach, R
Roberts, BL
Ruf,
T
Schafer, M
Schaller, LA
Schietinger, T
Schopper, A and
Tauscher, L
Thibault, C
Touchard, F
Touramanis, C
Van
Eijk, CWE
Vlachos, S
Weber, P
Wigger, O
Wolter, M and
Zavrtanik, D
Zimmerman, D
CPLEAR Collaboration
