Ερευνητικό υλικό ΕΚΠΑ

Experimental measurement of the KSKS/KSKL ratio in antiproton
annihilations at rest in gaseous hydrogen at 15 and 27 bar

Αγγλικά

The ratio R between the branching fractions of (p) over bar p –> KSKS
and (p) over bar p –> KSKL for antiprotons annihilating at rest in
gaseous hydrogen at 27 bar pressure was measured with the CPLEAR
detector to be R(27 bar) = 0.037 +/- 0.002. The fraction of P-wave
annihilation at rest at this target density was deduced to be 0.45 +/-
0.06. A value of R was also measured at 15 bar, with less statistics,
yielding R(15 bar) = 0.041 +/- 0.009. (C) 1997 Published by Elsevier
Science B.V.

1997

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

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

403

3-4

383-389

https://doi.org/10.1016/S0370-2693(97)00489-9

10.1016/S0370-2693(97)00489-9

https://pergamos.lib.uoa.gr/uoa/dl/object/3049382