Ερευνητικό υλικό ΕΚΠΑ

K-0-(K)over-bar(0) mass and decay-width differences: CPLEAR evaluation

Αγγλικά

The CPT-violation parameters Re(delta) and Im(delta) determined recently
by CPLEAR are used to evaluate the K-0-(K) over bar(0) mass and
decay-width differences, as given by the difference between the diagonal
elements of the neutral-kaon mixing matrix (M - i Gamma/2). The results
- (M-K0K0 - M<(($)over bar>0 ($) over bar 0)) = (- 1.5 +/- 2.0) x
10(-18) GeV and (Gamma(K0K0) - Gamma(($) over bar 0 ($) over bar 0)) =
(3.9 +/- 4.2) x 10(-18) GeV - are consistent with CPT invariance. The
CPT invariance is also shown to hold within a few times 10(-3)-10(-4)
for many of the amplitudes describing neutral-kaon decays to different
final states. (C) 1999 Elsevier Science B.V. All rights reserved.

1999

Angelopoulos, A
Apostolakis, A
Aslanides, E
Backenstoss, G
and Bargassa, P
Behnke, O
Benelli, A
Bertin, V
Blanc, F
and Bloch, P
Carlson, P
Carroll, M
Cawley, E
Chertok, MB
and Danielsson, M
Dejardin, M
Derre, J
Ealet, A and
Eleftheriadis, C
Fetscher, W
Fidecaro, M
Filipcic, A and
Francis, D
Fry, J
Gabathuler, E
Gamet, R
Gerber, HJ and
Go, A
Haselden, A
Hayman, PJ
Henry-Couannier, F and
Hollander, RW
Jon-And, K
Kettle, PR
Kokkas, P
Kreuger, R
and Le Gac, R
Leimgruber, F
Mandic, I
Manthos, N
Marel,
G
Mikuz, M
Miller, J
Montanet, F
Muller, A
Nakada, T
and Pagels, B
Papadopoulos, I
Pavlopoulos, P
Polivka, C and
Rickenbach, R
Roberts, BL
Ruf, T
Schafer, M
Schaller, LA
and Schietinger, T
Schopper, A
Tauscher, L
Thibault, C and
Touchard, F
Touramanis, C
Van Eijk, CWE
Vlachos, S and
Weber, P
Wigger, O
Wolter, M
Zavrtanik, D
Zimmerman, D
and CPLEAR Collaboration

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

471

2-3

332-338

https://doi.org/10.1016/S0370-2693(99)01333-7

10.1016/S0370-2693(99)01333-7

https://pergamos.lib.uoa.gr/uoa/dl/object/3052609