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Photon events with missing energy in e+e- collisions at vs = 130 to 209 GeV

journal contribution
posted on 2023-06-08, 04:45 authored by J Abdallah, P Abreu, Elisabeth FalkElisabeth Falk, The DELPHI Collaboration
The production of single- and multi-photon events has been studied in the reaction e+e- -> gamma (gamma) + invisible particles. The data collected with the DELPHI detector during the years 1999 and 2000 at centre-of-mass energies between 191 GeV and 209 GeV was combined with earlier data to search for phenomena beyond the Standard Model. The measured number of light neutrino families was consistent with three and the absence of an excess of events beyond that predicted by the Standard Model processes was used to set limits on new physics. Both model-independent searches and searches for new processes predicted by supersymmetric and extra-dimensional models have been made. Limits on new non-standard model interactions between neutrinos and electrons were also determined.

History

Publication status

  • Published

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Issue

4

Volume

38

Page range

395-411

Department affiliated with

  • Physics and Astronomy Publications

Notes

Three people including myself performed the analysis of single-photon events in the STIC calorimeters of DELPHI at sqrt(s) = 161 to 183 GeV. This paper presents the combined results of the analyses of single- and multi-photon events in the DELPHI electromagnetic calorimeters. Authorship extends to the entire collaboration.

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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