Available from http://dx.doi.org/10.1093/ptep/ptw128; Available from http://repo.scoap3.org/record/17927; PUBLISHER-ID: ptw128; OAI: oai:repo.scoap3.org:17927; Copyright (c) The Author(s) 2016. Published by Oxford University Press on behalf of the Physical Society of Japan.; This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.; Country of input: International Atomic Energy Agency (IAEA)