تُشكِّلُ درجة الحرية الدورانية في النظم الكوانتومية بمثابة مختبر غير مشابه حيث يمكن ملاحظة الخصائص الفيزيائية الكوانتومية المثيرة للاهتمام، والقدرة على التحكم في الدوران هي أداة قوية في البحث الفيزيائي. نقترح طريقة جديدة للتحكم في الدوران في نظام الأحصائيات النادرة التي تستفيد من آلية التفرُّع الصاروخي مع التقنية التوزيع الحزمي. تم التحقق من الطريقة الحالية في تجربة في مصنع جسيمات ريكن ري بيم فاكتوري، حيث تم الحصول على درجة توحيد 8٪ لدوران الأحصائية النادرة أل-32. وتم العثور على معيار الحصول على الطريقة الحالية أكبر من الطريقة التقليدية بضعف أكثر من 50.
The degree of freedom of spin in quantum systems serves as an unparalleled laboratory where intriguing quantum physical properties can be observed, and the ability to control spin is a powerful tool in physics research. We propose a novel method for controlling spin in a system of rare isotopes which takes advantage of the mechanism of the projectile fragmentation reaction combined with the momentum-dispersion matching technique. The present method was verified in an experiment at the RIKEN RI Beam Factory, in which a degree of alignment of 8% was achieved for the spin of a rare isotope Al-32. The figure of merit for the present method was found to be greater than that of the conventional method by a factor of more than 50.
The proposed cyclotron gas-stopping scheme for the efficient thermalization of intense rare isotope beams is examined. Simulations expand on previous studies and expose many complications of such an apparatus arising from physical effects not account
New measurements and reaction model calculations are reported for single neutron pickup reactions onto a fast uc{22}{Mg} secondary beam at 84 MeV per nucleon. Measurements were made on both carbon and beryllium targets, having very different structu
We investigate the possibilities of producing neutron-rich nuclides in projectile fission of heavy beams in the energy range of 20 MeV/nucleon expected from low-energy facilities. We report our efforts to theoretically describe the reaction mechanism
Pion energy spectra are presented for central collisions of neutron-rich 132Sn+124Sn and neutron-deficient 108Sn+112Sn systems using simulations with Boltzmann-Uehling-Uhlenbeck transport model. These calculations, which incorporate isospin-dependent
The HypHI collaboration aims to perform a precise hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and fAIR in order to study hypernuclei at extreme isospin, especially neutron rich hypernuclei to look insight hyper