PaperPanorama

Nuclear Experiment·nucl-ex

Wed·Nov 7, 2018

3 papers2 primary·1 cross-listed·reconstructed*

  1. 01*

    Dominance of tensor correlations in high-momentum nucleon pairs studied by (p,pd) reaction

    S. Terashima🇨🇳 · L. Yu🇨🇳 · H.J. Ong🇯🇵 · I. Tanihata🇨🇳 · S. Adachi🇯🇵 · N. Aoi🇯🇵 · P.Y. Chan · H. Fujioka🇯🇵 · M. Fukuda · H. Geissel🇩🇪 · G. Gey🇯🇵 · J. Golak🇵🇱 and 20 other authors

    The isospin character of p-n pairs at large relative momentum has been observed for the first time in the 16O ground state. A strong population of the J,T=1,0 state and a very weak population of the J,T=0,1 state were observed in neutron pick up domain of 16O(p,pd) at 392 MeV. This strong isospin dependence at large momentum transfer is not reproduced by the distorted-wave impulse approximation calculations with known spectroscopic amplitudes. The results indicate the presence of high-momentum protons and neutrons induced by the tensor interactions in ground state of 16O.

    nucl-exnucl-thPRL(2018)·32 citations
  2. 03*

    The n2EDM experiment at the Paul Scherrer Institute

    C. Abel🇬🇧 · N. J. Ayres🇬🇧 · G. Ban🇫🇷 · G. Bison🇨🇭 · K. Bodek🇵🇱 · V. Bondar🇧🇪 · E. Chanel🇨🇭 · P.-J. Chiu🇨🇭 · B. Clement🇫🇷 · C. Crawford🇺🇸 · M. Daum🇨🇭 · S. Emmenegger🇨🇭 and 36 other authors

    We present the new spectrometer for the neutron electric dipole moment (nEDM) search at the Paul Scherrer Institute (PSI), called n2EDM. The setup is at room temperature in vacuum using ultracold neutrons. n2EDM features a large UCN double storage chamber design with neutron transport adapted to the PSI UCN source. The design builds on experience gained from the previous apparatus operated at PSI until 2017. An order of magnitude increase in sensitivity is calculated for the new baseline setup based on scalable results from the previous apparatus, and the UCN source performance achieved in 2016.

    physics.ins-dethep-exnucl-exEPJ Web Conf.(2019)·35 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.