Ερευνητικό υλικό ΕΚΠΑ

An upper limit for the branching ratio of the decay K-s->e(+)e(-)

Αγγλικά

A search for the decay K-S –> e(+)e(-) was performed within the
framework of the CPLEAR experiment. Full event reconstruction together
with e/pi separation allowed powerful background rejection and high
signal acceptance. The analysis of the complete set of data yields the
result: BR(K-S –> e(+)e(-)) < 1.4 x 10(-7) (90% CL), an improvement on
the current experimental limit by a factor of 20. (C) 1997 Published by
Elsevier Science B.V.

1997

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

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

413

1-2

232-238

https://doi.org/10.1016/S0370-2693(97)01187-8

10.1016/S0370-2693(97)01187-8

https://pergamos.lib.uoa.gr/uoa/dl/object/3049767