We present the final results obtained by the MACRO experiment in the search for GUT magnetic monopoles in the penetrating cosmic radiation, for the range 4 x 10(-5) < 3 < 1. Several searches with all the MACRO sub-detectors (i.e. scintillation counters, limited streamer tubes and nuclear track detectors) were performed, both in stand alone and combined ways. No candidates were detected and a 90% Confidence Level (C.L.) upper limit to the local magnetic monopole flux was set at the level of 1.4 x 10(-16) cm(-2) s(-1) sr(-1). This result is the first experimental limit obtained in direct searches which is well below the Parker bound in the whole 3 range in which GUT magnetic monopoles are,expected. RI Spurio, Maurizio/G-4170-2012; SCAPPARONE, EUGENIO/H-1805-2012; Lamanna, Ernesto/C-7658-2012; giglietto, nicola/I-8951-2012; Sirri, Gabriele/J-5067-2012; Cafagna, Francesco/A-9299-2010 OI Lamanna, Ernesto/0000-0002-7844-8230; Sirri, Gabriele/0000-0003-2626-2853; Cafagna, Francesco/0000-0002-7450-4784
Final results of magnetic monopole searches with the MACRO experiment
CARUSO, ROSSELLA;
2002-01-01
Abstract
We present the final results obtained by the MACRO experiment in the search for GUT magnetic monopoles in the penetrating cosmic radiation, for the range 4 x 10(-5) < 3 < 1. Several searches with all the MACRO sub-detectors (i.e. scintillation counters, limited streamer tubes and nuclear track detectors) were performed, both in stand alone and combined ways. No candidates were detected and a 90% Confidence Level (C.L.) upper limit to the local magnetic monopole flux was set at the level of 1.4 x 10(-16) cm(-2) s(-1) sr(-1). This result is the first experimental limit obtained in direct searches which is well below the Parker bound in the whole 3 range in which GUT magnetic monopoles are,expected. RI Spurio, Maurizio/G-4170-2012; SCAPPARONE, EUGENIO/H-1805-2012; Lamanna, Ernesto/C-7658-2012; giglietto, nicola/I-8951-2012; Sirri, Gabriele/J-5067-2012; Cafagna, Francesco/A-9299-2010 OI Lamanna, Ernesto/0000-0002-7844-8230; Sirri, Gabriele/0000-0003-2626-2853; Cafagna, Francesco/0000-0002-7450-4784I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.