Ερευνητικό υλικό ΕΚΠΑ

CPLEAR results on the CP parameters of neutral kaons decaying to
pi(+)pi(-)pi(0)

Αγγλικά

The CPLEAR experiment measured time-dependent decay-rate asymmetries of
K-0 and (K) over bar(0) decaying to pi(+)pi(-)pi(0) in order to study
the interference between the decay amplitudes of K-S(0) - either
CP-violating or CP-conserving - and the CP-conserving K-L(0) decay
amplitude. From the analysis of the complete data set we find for the
CP-violating parameter eta(+-0), Re((+-0)) = (-2 +/- 7 stat. (+4)(-1)
syst.) x 10(-3), Im(eta(+-0)) = (-2 +/- 9 stat. (+2)(-1) syst.) x 10(-3)
and for the CP-conserving parameter lambda, Re(lambda) = (+28 +/- 7
stat. +/-3 syst.) x 10(-3), Im(lambda) = (-10 +/- 8 stat. +/- 2 syst.) x
10(-3). From the latter, the branching ratio of the CP-conserving
(KS)-S-0 –> pi(+)pi(-)pi(0) decay is deduced to be B = (2.5(-1.0)(+1.3)
stat. (+0.5)(-0.6) systs.) x 10(-7). (C) 1997 Elsevier Science B.V.

1997

Adler, R
Angelopoulos, A
Apostolakis, A
Aslanides, E and
Backenstoss, G
Bargassa, P
Bee, CP
Behnke, O
Benelli, A
and Bertin, V
Blanc, F
Bloch, P
Carlson, P
Carroll, M
and Carvalho, J
Cawley, E
Charalambous, S
Chardin, G and
Chertok, MB
Cody, A
Danielsson, M
Dejardin, M
Derre, J
and Ealet, A
Eckart, B
Eleftheriadis, C
Evangelou, I and
Faravel, L
Fassnacht, P
Felder, C
FerreiraMarques, R and
Fetscher, W
Fidecaro, M
Filipcic, A
Francis, D
Fry, J
and Gabathuler, E
Gamet, R
Garreta, D
Gerber, HJ
Go, A
and Guyot, C
Haselden, A
Hayman, PJ
HenryCouannier, F and
Hollander, RW
Hubert, E
JonAnd, K
Kettle, PR
Kochowski,
C
Kokkas, P
Kreuger, R
LeGac, R
Leimgruber, F and
Liolios, A
Machado, E
Mandic, I
Manthos, N
Marel, G and
Mikuz, M
Miller, J
Montanet, F
Muller, A
Nakada, T and
Pagels, B
Papadopoulos, I
Pavlopoulos, P
daCunha, JP and
Policarpo, A
Polivka, G
Rickenbach, R
Roberts, BL
Ruf, T
and Sakeliou, L
Sanders, P
Santoni, C
Schafer, M and
Schaller, LA
Schietinger, T
Schopper, A
Schune, P and
Soares, A
Tauscher, L
Thibault, C
Touchard, F and
Touramanis, C
Triantis, F
VanBeveren, E
VanEijk, CWE and
Vlachos, S
Weber, P
Wigger, O
Wolter, M
Yeche, C and
Zavrtanik, D
Zimmerman, D

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

407

2

193-200

https://doi.org/10.1016/S0370-2693(97)00757-0

10.1016/S0370-2693(97)00757-0

https://pergamos.lib.uoa.gr/uoa/dl/object/3049516