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

R. Barate, D. Decamp, P. Ghez, C. Goy, S. Jezequel, J. P. Lees, F. Martin, E. Merle, M. N. Minard, B. Pietrzyk, H. Przysiezniak, R. Alemany, M. P. Casado, M. Chmeissani, J. M. Crespo, E. Fernandez, M. Fernandez-Bosman, L. Garrido, E. Graugès, A. JusteM. Martinez, G. Merino, R. Miquel, L. M. Mir, P. Morawitz, A. Pacheco, I. C. Park, I. Riu, A. Colaleo, D. Creanza, M. de Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, U. Becker, G. Boix, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. W. Forty, M. Frank, F. Gianotti, T. C. Greening, A. W. Halley, J. B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, O. Leroy, C. Loomis, P. Maley, P. Mato, A. Minten, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, M. Schmitt, O. Schneider, P. Spagnolo, W. Tejessy, F. Teubert, I. R. Tomalin, E. Tournefier, A. E. Wright, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, S. Dessagne, A. Falvard, C. Ferdi, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

Radiative returns to the Z resonance (Zγ 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: ECM = 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 MW which is smaller than the statistical error achieved from the corresponding dataset. © 1999 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)339-349
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume464
Issue number3-4
DOIs
Publication statusPublished - 1 Jan 1999

Fingerprint Dive into the research topics of 'Determination of the LEP centre-of-mass energy from Zγ events'. Together they form a unique fingerprint.

  • Cite this

    Barate, R., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J. P., Martin, F., Merle, E., Minard, M. N., Pietrzyk, B., Przysiezniak, H., Alemany, R., Casado, M. P., Chmeissani, M., Crespo, J. M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Graugès, E., ... Michel, B. (1999). Determination of the LEP centre-of-mass energy from Zγ events. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 464(3-4), 339-349. https://doi.org/10.1016/S0370-2693(99)00903-X