Heavy quark charge asymmetries with the CELLO detector

Autor: B. Stella, G. Cozzika, Aharon Levy, Volker Blobel, A. Beck, A. Klatchko, J. H. Köhne, D. C. Fries, Hannes Jung, G. D'Agostini, G. Flügge, Gideon Bella, D. Lüers, R. Kotthaus, Alan Campbell, M. Goldberg, G. G. Winter, V. Schröder, H. Spitzer, Peter Schacht, J. H. Peters, F. Ferrarotto, F. Le Diberder, H. Küster, D. Hendry, Werner Wiedenmann, K. H. Ranitzsch, G. Shooshtari, M. Davier, G. Grindhammer, G. Buschhorn, J. Fuster, K. Gamerdinger, M. Iacovacci, J. H. Field, U. Hädinger, J. Harjes, O. Hamon, B. Gunderson, C. Milstene, J. Ahme, Gideon Alexander, M. Feindt, H. Schneider, J. Hansmeyer, P. Gabriel, F. Kapusta, Peter Bussey, H. J. Behrend, R. George, S. Lumsdon, R. Seufert, M. Rivoal, W. D. Apel, W. De Boer, Jean-Arcady Meyer, D. W. Kim, Horst Oberlack, J. Grunhaus, O. Podobrin, J. J. Veillet, W. Brehm, K. Blohm, Luc Poggioli, S. Scholz, L. Criegee, M. Hahn, I. O. Skillicorn, Y. Ducros, H. Müller, G. Franke, J. Engler, P. Grosse-Wiesmann, J. Haissinski, Hubert Kroha, Jean-Francois Grivaz, C. Kiesling, H. Fenner, V. Journé

Publikováno v: Zeitschrift für Physik C Particles and Fields. 47:333-342

The production ofb andc quarks ine+e− annihilation has been studied with the CELLO detector in the range from 35 GeV up to the highest PETRA energies. The heavy quarks have been tagged by their semileptonic decays. The charge asymmetries forb quark

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d3116cf1d04669f1b7f9362a97c2b83
https://doi.org/10.1007/bf01565856

A measurement of the ?0, ? and ?? electromagnetic form factors

Autor: H. Spitzer, K. H. Ranitzsch, Luc Poggioli, G. Shooshtari, M. Feindt, T. Weihrich, S. Scholz, B. Gunderson, G. G. Winter, A. Klatchko, J. H. Peters, J. H. Köhne, W. De Boer, F. Kapusta, G. Grindhammer, L. Criegee, S. Lumsdon, J. H. Field, M. Rivoal, F. Ferrarotto, F. Le Diberder, Hubert Kroha, J. Engler, C. Milstene, R. George, J. Grunhaus, Jean-Francois Grivaz, D. C. Fries, O. Podobrin, G. Buschhorn, H. J. Behrend, C. Kiesling, J. Ahme, M. Davier, A. J. Campbell, H. Fenner, Jean-Arcady Meyer, G. Cozzika, J. Fuster, A. Beck, Y. Ducros, Hannes Jung, Horst Oberlack, J. J. Veillet, M. Goldberg, H. Müller, G. Franke, J. Harjes, G. D'Agostini, K. Blohm, B. Stella, P. Grosse-Wiesmann, J. Haissinski, V. Journé, G. Flügge, D. Lüers, V. Schröder, Werner Wiedenmann, O. Hamon, Gideon Bella, Gideon Alexander, H. Schneider, I. O. Skillicorn, W. D. Apel, P. J. Bussey, D. Hendry, Peter Schacht, H. Küster, K. Gamerdinger, M. Iacovacci, Aharon Levy, Volker Blobel, R. Kotthaus

Publikováno v: Zeitschrift f�r Physik C Particles and Fields. 49:401-409

We present measurement of the π0γ*γ, ηγ*γ and η′γ*γ form factors. The π0-form factor is for the first time observed in the space-like region. The transition form factor of the η-meson is determined from its decay modes π+π-π0, π+π-�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddf2b568e2df14304f44d4ce586a245a
https://doi.org/10.1007/bf01549692

A search for substructure of leptons and quarks with the CELLO detector

Autor: Luc Poggioli, W. De Boer, R. George, Jean-Arcady Meyer, Alan Campbell, G. G. Winter, B. Gunderson, D. C. Fries, M. Feindt, Gideon Alexander, H. Schneider, J. Harjes, G. Buschhorn, S. Scholz, R. Kotthaus, M. Goldberg, G. D'Agostini, T. Weihrich, S. Lumsdon, O. Podobrin, J. Ahme, Peter Schacht, J. Fuster, G. Grindhammer, H. Spitzer, H. Küster, J. H. Köhne, F. Kapusta, K. H. Ranitzsch, C. Milstene, J. J. Veillet, Jean-Francois Grivaz, J. Grunhaus, K. Gamerdinger, M. Iacovacci, H. J. Behrend, F. Ferrarotto, F. Le Diberder, C. Kiesling, K. Blohm, B. Stella, G. Cozzika, A. Beck, J. H. Peters, Aharon Levy, H. Fenner, Gideon Bella, Volker Blobel, Hannes Jung, A. Klatchko, J. H. Field, W. D. Apel, M. Davier, L. Criegee, G. Shooshtari, V. Journé, Werner Wiedenmann, M. Rivoal, Hubert Kroha, Horst Oberlack, Craig Buttar, Y. Ducros, H. Müller, G. Franke, I. O. Skillicorn, J. Engler, D. Hendry, P. Grosse-Wiesmann, J. Haissinski, G. Flügge, D. Lüers, V. Schröder, O. Hamon, Peter Bussey

Publikováno v: Zeitschrift f�r Physik C Particles and Fields. 51:149-156

Differential cross section data of the CELLO experiment on pair production of muons, taus, and heavy quarks ine+e−-annihilation are presented and analysed, together with our data on Bhabha scattering, in terms of compositeness effects characterized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6af9ff6bb3f8492bd4e3db90fee0d31
https://doi.org/10.1007/bf01475784

Cross section measurement and spin-parity analysis of the reaction γγ → ωϱ

Autor: J. Grunhaus, A. Klatchko, M. Goldberg, J. Harjes, J. H. Field, J. Haissinski, F. Ferrarotto, K. Blohm, G. Flügge, D. Lüers, Alan Campbell, C. Milstene, W. De Boer, F. Le Diberder, R. Kotthaus, G. Grindhammer, V. Schröder, L. Criegee, G. G. Winter, J. Ahme, M. Rivoal, B. Gunderson, H. Spitzer, J. Fuster, Y. Ducros, K. H. Ranitzsch, Horst Oberlack, B. Stella, G. Buschhorn, H. Müller, G. Franke, D. Hendry, O. Podobrin, Werner Wiedenmann, O. Hamon, Gideon Bella, Ch. Kiesling, H. J. Behrend, M. Feindt, M. Davier, J. H. Peters, S. Lumsdon, Luc Poggioli, J. J. Veillet, J. Engler, R. George, P. Grosse-Weismann, I. O. Skillicorn, J. H. Köhne, Aharon Levy, W. D. Apel, G. Cozzika, S. Scholz, F. Kapusta, Jean-Arcady Meyer, Volker Blobel, G. Shooshtari, A. Beck, V. Journé, Hannes Jung, Gideon Alexander, H. Schneider, D. C. Fries, Peter Schacht, H. Küster, G. D'Agostini, K. Gamerdinger, M. Iacovacci, Hubert Kroha, P. J. Bussey, T. Weihrich, Jean-Francois Grivaz, H. Fenner

Publikováno v: Physics Letters B. 257:505-513

We present results of an analysis of the reaction γγ → ωϱ in the two-photon process e + e − → ϵ + e − 2 π + 2 π − π 0 in the untagged mode. The cross section is largely compatible with previous determinations; however, we do not con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1276906e28316fd1fba4489563a0a3b7
https://doi.org/10.1016/0370-2693(91)91928-o

a 2(1320) andπ 2(1670) formation in the reactionγγ→π + π − π 0

Autor: Ch. Kiesling, F. Ferrarotto, F. Le Diberder, J. H. Peters, W. D. Apel, O. Hamon, Gideon Bella, Luc Poggioli, S. Scholz, Jean-Francois Grivaz, G. Grindhammer, H. Fenner, J. Engler, P. Grosse-Wiesmann, S. Lumsdon, I. O. Skillicorn, Aharon Levy, Volker Blobel, L. Criegee, D. C. Fries, A. Klatchko, C. Milstene, J. H. Köhne, Hubert Kroha, F. Kapusta, G. Buschhorn, R. Seufert, J. Ahme, Alan Campbell, R. Kotthaus, M. Rivoal, W. Brehm, Gideon Alexander, H. Schneider, J. Haissinski, H. Spitzer, D. W. Kim, G. G. Winter, G. Cozzika, K. H. Ranitzsch, A. Beck, G. Shooshtari, P. J. Bussey, Peter Schacht, H. Küster, Hannes Jung, D. Hendry, K. Gamerdinger, M. Iacovacci, W. De Boer, H. J. Behrend, U. Hädinger, B. Gunderson, J. Grunhaus, V. Journé, J. Hansmeyer, P. Gabriel, G. D'Agostini, M. Hahn, M. Goldberg, J. H. Field, J. J. Veillet, R. George, K. Blohm, Jean-Arcady Meyer, O. Podobrin, G. Flügge, D. Lüers, V. Schröder, M. Davier, Y. Ducros, H. Müller, G. Franke, J. Fuster, M. Feind, Werner Wiedenmann, J. Harjes, Horst Oberlack, B. Stella

Publikováno v: Zeitschrift für Physik C Particles and Fields. 46:583-591

The reactione + e −→e + e −π+π−π0 in the untagged mode has been measured with the CELLO detector at PETRA. The cross section is dominated by exclusivea 2(1320) production, whose radiative width is determined to beΓ γγ=1.00±0.07(stat.)�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cda13844e98788676b93e91357f44ae5
https://doi.org/10.1007/bf01560259