Prospects to measure neutrino oscillation pattern with very large area underground detector at very long baselines

Ammosov V., Garkusha V., Ivanilov A., Kabachenko V., Melnikov E., Novoskoltsev F., Soldatov A., Zaitsev A. Prospects to Measure Neutrino Oscillation Pattern with Very Large Area Underground Detector at Very Long Baselines: IHEP Preprint 2002–19. – Protvino, 2002. – p. 20, figs. 17, tables 7, refs.: 24. The concept of a very long baseline neutrino experiment with quasi monochromatic neutrino beam and very large area underground detector is discussed. The detector could be placed in the existing 20 km tunnel at IHEP, Protvino. The High Intensity Proton Accelerators (HIPA) which are planned to be built in Japan (JAERI-KEK, baseline of ∼ 7000 km) and Germany (GSI, baseline of ∼ 2000 km) as well as the Main Injector at Fermilab (∼ 7600 km) are considered as possible sources of neutrino beams. The oscillations are analysed in the three-neutrino scheme taking into account terrestrial matter effects. In the proposed experiment it is feasible to observe the oscillation pattern as an unique proof of the existence of neutrino oscillations. Precise measurements of disappearance oscillation parameters of the muon neutrinos and antineutrinos can be done within a reasonable time. aNNOTACIQ aMMOSOW a., gARKU[A w., zAJCEW a., iWANILOW a., kABAˆENKO w., mELXNIKOW e., nOWOSKOLXCEW f., sOLDATOW a. pERSPEKTIWY IZMERENIQ KARTINY OSCILLQCIJ NEJTRINO NA PODZEMNOM DETEKTORE SWERHBOLX[OJ PLO]ADI PRI SWERHBOLX[OJ DLINE BAZY OSCILLQCIJ: pREPRINT ifw— 2002–19. – pROTWINO, 2002. – 20 S., 17 RIS., 7 TABL., BIBLIOGR.: 24. oBSUVDAETSQ KONCEPCIQ NEJTRINNOGO “KSPERIMENTA NA DETEKTORE SWERHBOLX[OJ PLO]ADI S KWAZIMONOHROMATIˆESKIM PUˆKOM NEJTRINO I PRI SWERHBOLX[OJ DLINE BAZY OSCILLQCIJ. pREDPOLAGAETSQ, ˆTO DETEKTOR BUDET RAZME]EN W SU]ESTWU@]EM W ifw— (pROTWINO) TONNELE DLINOJ 20 KM. w KAˆESTWE WOZMOVNYH ISTOˆNIKOW NEJTRINO RASSMATRIWA@TSQ PROTONNYE USKORITELI WYSOKOJ INTENSIWNOSTI, KOTORYE PLANIRUETSQ POSTROITX W qPONII (JAERI-KEK, DLINA BAZY ∼ 7000 KM) I gERMANII (GSI, DLINA BAZY ∼ 2000 KM), A TAKVE GLAWNYJ INVEKTOR W fERMILABE (∼ 7600 KM). oSCILLQCII ISSLEDU@TSQ W RAMKAH TREHNEJTRINNOJ SHEMY S UˆETOM “FFEKTOW WE]ESTWA zEMLI. pREDLAGAEMYJ “KSPERIMENT PREDOSTAWLQET UNIKALXNU@ WOZMOVNOSTX DOKAZATX SU]ESTWOWANIE NEJTRINNYH OSCILLQCIJ PRI POMO]I NEPOSREDSTWENNOGO NABL@DENIQ OSCILLQTORNOJ KARTINY. tOˆNOE IZMERENIE PARAMETROW OSCILLQCIJ M@ONNYH NEJTRINO I ANTINEJTRINO MOVET BYTX PROWEDENO ZA RAZUMNOE WREMQ. c © State Research Center of Russia Institute for High Energy Physics, 2002