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 × 10-5 < β < 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 × 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 β range in which GUT magnetic monopoles are expected.
Final results of magnetic monopole searches with the MACRO experiment: The MACRO collaboration / Ambrosio M.; Antolini R.; Auriemma G.; Bakari D.; Baldini A.; Barbarino G.C.; Barish B.C.; Battistoni G.; Becherini Y.; Bellotti R.; Bemporad C.; Bernardini P.; Bilokon H.; Bloise C.; Bower C.; Brigida M.; Bussino S.; Cafagna F.; Calicchio M.; Campana D.; Carboni M.; Caruso R.; Cecchini S.; Cei F.; Chiarella V.; Chiarusi T.; Choudhary B.C.; Coutu S.; Cozzi M.; de Cataldo G.; Dekhissi H.; de Marzo C.; de Mitri I.; Derkaoui J.; de Vincenzi M.; Di Credico A.; Erriquez O.; Favuzzi C.; Forti C.; Fusco P.; Giacomelli G.; Giannini G.; Giglietto N.; Giorgini M.; Grassi M.; Grillo A.; Guarino F.; Gustavino C.; Habig A.; Hanson K.; Heinz R.; Iarocci E.; Katsavounidis E.; Katsavounidis I.; Kearns E.; Kim H.; Kyriazopoulou S.; Kumar A.; Lamanna E.; Lane C.; Levin D.S.; Lipari P.; Longley N.P.; Longo M.J.; Loparco F.; Maaroufi F.; Mancarella G.; Mandrioli G.; Manzoor S.; Margiotta A.; Marini A.; Martello D.; Marzari-Chiesa A.; Matteuzzi D.; Mazziotta M.N.; Michael D.G.; Monacelli P.; Montaruli T.; Monteno M.; Mufson S.; Musser J.; Nicolo D.; Nolty R.; Orth C.; Osteria G.; Palamara O.; Patera V.; Patrizii L.; Pazzi R.; Peck C.W.; Perrone L.; Petrera S.; Pistilli P.; Popa V.; Raino A.; Reynoldson J.; Ronga F.; Rrhioua A.; Satriano C.; Scapparone E.; Scholberg K.; Sciubba A.; Serra P.; Sioli M.; Sirri G.; Sitta M.; Spinelli P.; Spinetti M.; Spurio M.; Steinberg R.; Stone J.L.; Sulak L.R.; Surdo A.; Tarle G.; Togo V.; Vakili M.; Walter C.W.; Webb R.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 25:4(2002), pp. 511-522. [10.1140/epjc/s2002-01046-9]
Final results of magnetic monopole searches with the MACRO experiment: The MACRO collaboration
Becherini Y.;Giacomelli G.;Margiotta A.;Serra P.;Sioli M.;Spurio M.;
2002
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 × 10-5 < β < 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 × 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 β range in which GUT magnetic monopoles are expected.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
