We search, in the context of extra-dimension scenarios, for the possible existence of brane fluctuations, called branons. Events with a single photon or a single Z-boson and missing energy and momentum collected with the L3 detector in e+e- collisions at centre-of-mass energies √s=189-209 GeV are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of 103 GeV is derived for the mass of branons, for a scenario with small brane tensions. Alternatively, under the assumption of a light branon, brane tensions below 180 GeV are excluded.

Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., et al. (2004). Search for branons at LEP. PHYSICS LETTERS. SECTION B, 597(2), 145-154 [10.1016/j.physletb.2004.07.014].

Search for branons at LEP

PENSOTTI, SIMONETTA;
2004

Abstract

We search, in the context of extra-dimension scenarios, for the possible existence of brane fluctuations, called branons. Events with a single photon or a single Z-boson and missing energy and momentum collected with the L3 detector in e+e- collisions at centre-of-mass energies √s=189-209 GeV are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of 103 GeV is derived for the mass of branons, for a scenario with small brane tensions. Alternatively, under the assumption of a light branon, brane tensions below 180 GeV are excluded.
Articolo in rivista - Articolo scientifico
L3,CERN-LEP-L3
English
145
154
Achard, P., Adriani, O., Aguilar Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., et al. (2004). Search for branons at LEP. PHYSICS LETTERS. SECTION B, 597(2), 145-154 [10.1016/j.physletb.2004.07.014].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/12149
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