کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9861651 | 1529008 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lifting degeneracies in the oscillation parameters by a neutrino factory
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We study the potential of a very long baseline neutrino oscillation experiment with a neutrino factory and a large segmented water-Äerenkov calorimeter detector in resolving the degeneracies in the neutrino oscillation parameters; the sign of the larger mass-squared difference δm132, the sign of |Uμ3|2(â¡sin2θATM)â1/2, and a possible two-fold ambiguity in the determination of the CP phase δMNS. We find that the above problems can be resolved even if the particle charges are not measured. The following results are obtained in our exploratory study for a neutrino factory which delivers 1021 decaying μ+ and μâ at 10 GeV and a 100 kton detector which is placed 2100 km away and is capable of measuring the event energy and distinguishing e± from μ±, but not their charges. The sign of δm132 can be determined for 4|Ue3|2(1â|Ue3|2)â¡sin22θRCTâ³0.008. That of sin2θATMâ1/2 can be resolved for sin22θATM=0.96 when sin22θRCTâ³0.06. The CP-violating phase δMNS can be uniquely constrained for sin22θRCTâ³0.02 if its true value is around 90° or 270°, while it can be constrained for sin22θRCTâ³0.03 if its true value is around 0° or 180°.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 606, Issues 3â4, 27 January 2005, Pages 371-383
Journal: Physics Letters B - Volume 606, Issues 3â4, 27 January 2005, Pages 371-383
نویسندگان
Mayumi Aoki, Kaoru Hagiwara, Naotoshi Okamura,