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 Formula Not Shown collisions at centre-of-mass energies Formula Not Shown are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of Formula Not Shown 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.
SEARCH FOR BRANONS AT LEP
BATTISTON, Roberto;PAULUZZI, Michele;BERTUCCI, Bruna;BIASINI, Maurizio;BURGER, WILLIAM J.;CECCHI, Claudia;FIANDRINI, Emanuele;
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 Formula Not Shown collisions at centre-of-mass energies Formula Not Shown are analysed. No excess over the Standard Model expectations is found and a lower limit at 95% confidence level of Formula Not Shown 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.File in questo prodotto:
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