<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hola a todos,<div><br></div><div>acaba de aparecer el resultado del análisis de un experimento competidor de OPERA, que muestra que los neutrinos viajan a la velocidad de la luz nomas.</div><div><br></div><div><br></div><div>Saludos,</div><div>Daniel</div><div><br></div><div><a href="http://arxiv.org/pdf/1203.3433v1.pdf">http://arxiv.org/pdf/1203.3433v1.pdf</a></div><h1 class="title" style="margin-top: 0.5em; margin-right: 0px; margin-bottom: 0.5em; margin-left: 20px; font-size: x-large; font-weight: bold; line-height: 28px; font-family: 'Lucida Grande', helvetica, arial, verdana, sans-serif; ">Measurement of the neutrino velocity with the ICARUS detector at the CNGS beam</h1><div><br></div><div><span class="Apple-style-span" style="font-family: 'Lucida Grande', helvetica, arial, verdana, sans-serif; font-size: 14px; line-height: 19px; ">The CERN-SPS accelerator has been briefly operated in a new, lower intensity neutrino mode with ~10^12 p.o.t. /pulse and with a beam structure made of four LHC-like extractions, each with a narrow width of ~3 ns, separated by 524 ns. This very tightly bunched beam structure represents a substantial progress with respect to the ordinary operation of the CNGS beam, since it allows a very accurate time-of-flight measurement of neutrinos from CERN to LNGS on an event-to-event basis. The ICARUS T600 detector has collected 7 beam-associated events, consistent with the CNGS delivered neutrino flux of 2.2 10^16 p.o.t. and in agreement with the well known characteristics of neutrino events in the LAr-TPC. The time of flight difference between the speed of light and the arriving neutrino LAr-TPC events has been analysed. The result is compatible with the simultaneous arrival of all events with equal speed, the one of light. This is in a striking difference with the reported result of OPERA [1] that claimed that high energy neutrinos from CERN should arrive at LNGS about 60 ns earlier than expected from luminal speed.</span></div></body></html>