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

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


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.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/16186
ISSN: 0370-2693
Link: <Go to ISI>://WOS:A1997XJ27000031
http://ac.els-cdn.com/S0370269397004899/1-s2.0-S0370269397004899-main.pdf?_tid=ffca8d79cf9e39cde0d2c7d61ca4ab06&acdnat=1334230282_44dc30ef69eb6655950bac8de4dfd7db
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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