First determination of CP violation parameters from K0−0 decay asymmetry

Autor: S. Charalambous, D. Francis, T. Alhalel, P. Fassnacht, M. Dodgson, J. Bennet, R. Rickenbach, Claudio Santoni, K. Sarigiannis, João Carvalho, M. Van den Putte, F. Montanet, B. Eckart, C. Thibault, E. Gabathuler, E. Aslanides, A. Filipcic, T. Nakada, Marko Mikuz, Kerstin Jon-And, P Harrison, A. Schopper, F. Touchard, C. Touramanis, R. Ferreira-Marques, H. Cobbaert, H.-J. Gerber, P.-R. Kettle, E. van Beveren, P. Kokkas, J. R. Fry, S. Szilagyi, P.J. Hayman, Ch. Bula, G. Polivka, Ph. Schune, J. Duclos, W.G. Heyes, E. Rozaki, T. Geralis, W. Fetscher, A. Apostolakis, A. Ealet, A. Go, M. Fidecaro, P. Maley, L. Faravel, J.K. Bielein, T. Lawry, G. Varner, T. Ruf, P. Carlson, A. Onofre, J. Pinto Dacunha, P. Pavlopoulos, Christopher Bee, D. Zimmerman, K. Jansson, P. Sanders, S. Vlachos, Christer Fuglesang, C.W.E. Van Eijk, R. Adler, M. Chardalas, Andras Kerek, Marc Dejardin, G. Marel, L. Sacks, L.A. Schaller, F. Triantis, R. Le Gac, Claude Guyot, G. Burgun, A.J.P.L. Policarpo, E. Machado, J. Derre, P. Weber, F. Pelucchi, A. Angelopoulos, R. Kreuger, S. Dedoussis, D.A. Troster, P. Gumplinger, L. Sakeliou, C. Felder, J. Miller, N. Manthos, G. Chardin, Jean-Louis Faure, C. Yeche, D. Garreta, G. Backenstoss, M. Schafer, C. Witzig, R. Gamet, C. Kochowski, H.U. Johner, B. Pagels, L. Tauscher, J.-C. Dousse, H. Postma, D. Zavrtanik, J. Kern, P. Bloch, E. Cawley, R.W. Hollander, U. Seljak

Publikováno v: Physics Letters B. 286:180-186

We report the first determination of CP violation parameters from parameter from particle—antiparticle asymmetry in the decay of neutral kaons into two charged pions. Observation of such an asymmetry is direct proof of CP violation. A fit to the as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::591ee4c503cd6e6dc3a7e71b4082123f
https://doi.org/10.1016/0370-2693(92)90178-7

Determination of the relative branching ratios for

Autor: Philippe Bloch, Andrej Filipcic, Ch. Bula, Stef. Charalambous, D. Warner, J. Derre, A. Go, C. Felder, H.U. Johner, Claude Guyot, L. Sakeliou, T. Geralis, D.A. Troester, G. Backenstoss, H. Postma, E. van Beveren, T. Lawry, C.W.E. van Eijk, J.C. Dousse, David Francis, L. Tauscher, P. Fassnacht, L. Faravel, M. Fidecaro, E. Aslanides, J. Duclos, H.-J. Gerber, R. Kreuger, João Carvalho, G. Marel, C. Touramanis, Christer Fuglesang, W.G. Heyes, E. Kossionides, A. Apostolakis, L. Sacks, T. Paradelis, Frixos A Triantis, R. Le Gac, G. S. Varner, E. Machado, P. Weber, K. Jansson, K. Sarigiannis, L.A. Schaller, A. Onofre, J. R. Fry, J. Bennet, B.L. Roberts, T. Nakada, P. Marotte, Sp. Dedoussis, F. Montanet, A. Schopper, Christopher Bee, P.J. Hayman, P. Pavlopoulos, R. Gamet, Jean-Louis Faure, R. Ferreira-Marques, M. Dodgson, Panagiotis Kokkas, S. Szilagyi, P.F. Harrison, S. Vlachos, D. Garreta, J. Kern, T. Ruf, C. Burgun, M. Van den Putte, W. Fetscher, C. Thibault, E. Gabathuler, R. Rickenbach, Francois Touchard, M. Mikuž, P. Maley, A. Ealet, Danilo Zavrtanik, R.W. Hollander, Ch Yèche, B. Eckart, R. Adler, P. Sanders, M. Chardalas, C. Santoni, A.J.P.L. Policarpo, F. Pelucchi, C. Witzig, C. Kochowski, B. Pagels, Jeffrey Boone Miller, D. Zimmerman, J. Pinto da Cunha, P. Gumplinger, Per Carlson, Marc Dejardin, Andras Kerek, E. Rozaki, P.-R. Kettle, H. Cobbaert, A. Angelopoulos, Kerstin Jon-And, Nikolaos Manthos, Ph. Schune, U. Seljak

Publikováno v: Physics Letters B. 267:154-158

The ratio of the branching fractions for p p →K+K− and p p →π+π− was determined with the CPLEAR detector, by stopping antiprotons in a gaseous hydrogen target at 15 bar pressure. It was found to be BR(K+K−)/BR(π+π−)=0.205± 0.016. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f16931f0580c65275b118ad56d24a97b
https://doi.org/10.1016/0370-2693(91)90541-w

Status of the CP LEAR experiment and first results

Autor: P. Bloch, J. Duclos, P. Gumpliger, J. R. Fry, G. S. Varner, E. Kossionides, K. Jansson, G. Burgun, P. Weber, P. Pavlopoulos, L. Sakeliou, B. Eckart, H. Cobbaert, Lukas A. Schaller, Sp. Dedoussis, Marko Mikuz, A. Onofre, D.A. Troester, Kerstin Jon-And, E. Gabathuler, R. Rickenbach, L. Faravel, Nikolaos Manthos, Claudio Santoni, U. Seljak, R. Gamet, R. Ferreira-Marques, A. Go, P. Sanders, Jean-Louis Faure, C. Witzig, J. Pinto da Cunha, P. Carlson, Theodoros Geralis, G. Marel, Ch. Bula, D. Garreta, C. W. W. Van Eijk, S. Szilagyi, J. Kern, G. Backenstoss, D. Zimmerman, C. Fuglesang, M. Fidecaro, P.R. Kettle, L. Tauscher, A. Schopper, David Francis, F. Montanet, C. Thibault, C. B. Bee, B. L. Roberts, P.J. Hayman, A. Apostolakis, João Carvalho, H. J. Johner, Andras Kerek, R.W. Hollander, L. Sacks, C. Touramanis, W. Fetscher, T. Paradelis, Eef van Beveren, K. Sarigianis, T. Nakada, R. Le Gac, Francois Touchard, J. Derre, Frixos A Triantis, Stef. Charalambous, R. Adler, Panagiotis Kokkas, Sotirios Vlachos, T. Lawry, J.C. Dousse, H.-J. Gerber, W.G. Heyes, A. Angelopoulos, M. Chardalas, Danilo Zavrtanik, T. Ruf, J. Bennet, Patrick Fassnacht, Elie Aslanides, P. F. Harrison, M. Dodgson, E. Machado, C. Kochowski, Andrej Filipcic, B. Pagels, Claude Guyot, C. Felder, M. Van de Putte, H. Postma, F. Pelucchi, P. Maley, J. S. Miller, Marc Dejardin, E. Rozaki, A.J.P.L. Policarpo, P. Marotte, R. Kreuger, A. Ealet

Publikováno v: Nuclear Physics B Proceedings Supplements
Testing CPT and studying CP violation at a Phi factory
Testing CPT and studying CP violation at a Phi factory, Apr 1990, Los Angeles, United States. pp.45-54
Scopus-Elsevier

The aim of the CP LEAR experiment is to study symmetry-violation effects, making use of tagged K0's and K0's. The detector, although missing some electronic components, has been operational for a few weeks at the end of 1989 at the CERN Low-Energy An

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3bf6d49f568258b8a2854cf30df50af
http://hal.in2p3.fr/in2p3-00009999

On the labelling of electron and positron levels in strong external electrostatic fields

Autor: H. Cobbaert, J. Reignier, J.F. Van Huele

Publikováno v: Nuclear Physics A. 474:637-650

We study the problem of labelling the bound states created in a strong external electrostatic field when this field is so intense that the notion of Fermi energy which separates the electron and positron levels disappears. The detailed study of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd40835bc1a4e1ca5e3a86d984c7bd5a
https://doi.org/10.1016/0375-9474(87)90598-7

Performance of a sampling calorimeter with alternate U and Fe absorbers

Autor: J. H. Bartley, F.F. Heymann, A. Sciubba, M. De Vincenzi, A. Frenkel, Salvatore Nuzzo, M. Coupland, S. Di Liberto, P. T. Trent, D. Gamba, G. Rosa, G. Martellotti, P. Fennel, V. Bisi, G. Marini, M. Fidecaro, M. G. Catanesi, P. F. Harrison, M. T. Muciaccia, G. Crosetti, A. Nigro, M. J. Esten, R. Roosen, S. Petrera, H. Cobbaert, F. Ruggieri, G. Romano, B.G. Duff, H. Sletten, Gianni Penso, E. Lamanna, L. Riccati, D.C. Imrie, Gilbert Poulard, P. Pistilli, L. Ramello

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 248:326-330

A sampling hadronic calorimeter, consisting of a sandwich of scintillator plates and alternate U and Fe absorbers, has been tested in a 135 GeV energy beam. The energy resolution turns out to be significantly improved with respect to the homogeneous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae8b1bfa9edafdf7121e0c11ddf5d1cc
https://doi.org/10.1016/0168-9002(86)91016-8