Determination of the LEP centre-of-mass energy from Zγ events

6533b7cefe1ef96bd1256fd2

RESEARCH PRODUCT

Determination of the LEP centre-of-mass energy from Zγ events

Y. Saadi Paolo Spagnolo Gerardo Ganis J. H. Von Wimmersperg-toeller C. Bozzi M. Kröcker David J. Smith P. Colas G. B. Taylor P. Tempesta Andrea Venturi S. Gonzalez M. Martinez Ramon Miquel A.w. Halley A.-s. Müller A. S. Thompson P. R. Norton R. W. Clifft O. Leroy K. Tittel Konrad Kleinknecht S. Wasserbaech F. Foster M.s. Kelly S. Werner A. Pacheco G. Faïf C. Markou J.g. Lynch W. Orejudos S. Dessagne F. Combley B. Raeven A. Ealet P. Negus A. Gregorio Vitaliano Chiarella André Rosowsky Piero Giorgio Verdini Lucia Silvestris O. Callot G. Giannini A. Minten A. Moutoussi J. C. Brient Ting Wang G. Mannocchi G. Mannocchi J. A. Strong E. Simopoulou E. Merle J. P. Lees H. Dietl W. Tejessy Andre Tilquin B. Michel Alain Bonissent Lei Zhang B. Renk P. Azzurri A. Misiejuk B. Gobbo Simone Gilardoni Inkyu Park Roberto Dell'orso S. L. Cartwright Ph Heusse Dirk Zerwas Karl Jakobs Jiali Lin S.r. Armstrong P. H. Hansen D. Rousseau I. Giehl T. Ziegler Ian R Tomalin Boris Tuchming Duccio Abbaneo J. F. Renardy Maria Smizanska Val O'shea P. Ghez Elizabeth Locci P. Henrard P.j. Dornan P.j. Dornan F. Gianotti B. Fabbro P. Girtler R. Beuselinck Gy. Wolf N. A. Robertson G. A. Cowan M. Wunsch A. Böhrer G. Bencivenni Stephane Jezequel Alberto Lusiani C. Loomis F. Ruggieri G. Capon Giuseppe Zito J. Carr C. K. Bowdery Y. B. Pan J. Nielsen Fabrizio Palla I. Ferrante E. Rohne R. Xu Giovanna Selvaggi O. Schneider O. Schneider John-bjarne Hansen A. Juste Gunter Quast J. Rothberg U. Becker D. M. Binnie Ettore Focardi Francesco Ragusa Peter Elmer A. Blondel S. Jin John Rander Franco Ligabue H.-a. Nürnberger Xin Wu A. Trabelsi I. Lehraus C. Vannini Giuseppe Iaselli I.j. Scott Alessia Tricomi Ll. M. Mir Hasko Stenzel Pierluigi Campana G. Parrini A. Sciabà M. Swynghedauw Tommaso Boccali G. Merino Jordan Nash E. Thomson D. R. Botterill J.j. Ward H. Videau W. Männer C. Goy P. Teixeira-dias Markus Frank M. Corden Marco Cattaneo F. Murtas Christian Zeitnitz H. Seywerd G. Prange V. Hepp Ll. Garrido Ll. Garrido A. J. Finch E. Tournefier A. Antonelli M H. Lehto J. D. Hansen J. C. Thompson Roberto Tenchini P. Payre C. Mannert R.w. Williams F. F. Martin Paul Hanke C. N. Booth B. Pietrzyk Donato Creanza P. Morawitz John T Harvey Alessandro Giassi S. Schmeling S.n. Black R. W. L. Jones B. Rensch J-c. Montret A. Ranieri John H. L. Hansen J. Jousset Michael Schmitt Michael Schmitt J. Boucrot G. Sanguinetti Giuseppe Raso K. Hüttmann C. Raine J. K. Sedgbeer P. Maley M.-n. Minard Q. Ouyang A. Rougé P.g. Buck Yuehong Xie Patrick Janot F. Cerutti B. Jost T. R. Edgecock Alberto Messineo C. Georgiopoulos L. F. Thompson E. Grauges L. Passalacqua G. Rudolph Anna Colaleo Dominique Pallin Giuseppe Bagliesi V. Büscher J. J. Aubert K. Affholderbach I. Videau I. Videau T. Medcalf J.h. Dann A. Jacholkowska A. Jacholkowska C. Benchouk D.p.s. Ferguson G. Bologna G. Maggi Salvatore Nuzzo C. Guicheney J. J. Walsh G. Rizzo G. Hansper S. Monteil Mario Antonelli M. C. Lemaire Roger Forty M. I. Williams C. Ferdi H. G. Sander V. M. Ghete G.p. Murtas P. Mato B.s. Nilsson Olivier Deschamps Nancy Marinelli Günther Dissertori Eric Lancon J. Putz Eb Martin P. A. Mcnamara F. Machefert Laurent Duflot W. Cameron F. Hölldorfer H.y. Kim Maria Pilar Casado S. Xue T.c. Greening N. Konstantinidis G.a. Blair L.t. Jones R. Alemany G. Hughes A.e. Wright Aristotelis Kyriakis K. Zachariadou M. Thulasidas Vitaliano Ciulli G. Calderini Y. S. Gao G. Ellis J. J. Veillet S. Goodsir S. Dhamotharan A. Wäänänen P. Coyle S. Chen G. Chazelle Georg Zobernig M. Aleppo M. G. Green G. Lütjens M. Davier J. Hess M.d. Williams Imma Riu J. Sommer C. Geweniger R. Tanaka U. Sieler E. E. Kluge Alain Falvard D. Fouchez M. A. Mcneil D. Decamp M. Pepe-altarelli M. Chmeissani Georgios Daskalakis Laurent Serin Sau Lan Wu Claus Grupen Jie Zhang B. Vallage J. M. Crespo Alan Litke Mario Maggi Paul Hodgson Mossadek Talby M. Girone S. Bettarini Pablo Rodriguez Perez X. Huang Paolo Laurelli D. Kuhn H. Drevermann M. Chalmers H. Hu S. Schael M. De Palma R. Cavanaugh W. Zhao L. Curtis M. Fernandez-bosman F. Badaud H. G. Moser Marumi Kado L. Rolandi D.e. Hutchcroft F. Ranjard Emmerich Kneringer F. Teubert J. Lefrançois A. Vayaki Giacomo Sguazzoni J. Nowell Ziad Ajaltouni F. Bossi A. Putzer F. Podlyski O. Buchmüller P. S. Marrocchesi Werner Wiedenmann B. Bloch-devaux S. Brandt O.j. Hayes R. Settles J. B. De Vivie De Regie R. Barate F. Motsch H. Wachsmuth G. Boix D. Schlatter Jean-francois Grivaz E. Fernandez J. Coles P. Perret H. Przysiezniak A. Valassi A. Valassi

subject

Systematic error Physics Nuclear and High Energy Physics Particle physics Aleph [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]010308 nuclear & particles physics Electron–positron annihilation Detector FOS: Physical sciences 01 natural sciences Resonance (particle physics)High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex)0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Radiative transfer Statistical error High Energy Physics::Experiment 010306 general physics Particle Physics - Experiment Energy (signal processing)

description

Radiative returns to the Z resonance (Zgamma events) are used to determine the LEP2 centre-of-mass energy from the data collected with the ALEPH detector in 1997. The average centre-of-mass energy is measured to be: E_CM = 182.50 +- 0.19(stat) +- 0.08(syst) GeV in good agreement with the precise determination by the LEP energy working group of 182.652 +- 0.050 GeV. If applied to the measurement of the W mass, its precision translates into a systematic error on M_W which is smaller than the statistical error achieved from the corresponding dataset.

year	journal	country	edition	language
1999-07-21

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