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NSR database version of April 27, 2024.

Search: Author = J.Karch

Found 5 matches.

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2017BI08      Phys.Rev. C 95, 045503 (2017)

G.Bison, M.Daum, K.Kirch, B.Lauss, D.Ries, P.Schmidt-Wellenburg, G.Zsigmond, T.Brenner, P.Geltenbort, T.Jenke, O.Zimmer, M.Beck, W.Heil, J.Kahlenberg, J.Karch, K.Ross, K.Eberhardt, C.Geppert, S.Karpuk, T.Reich, C.Siemensen, Y.Sobolev, N.Trautmann

Comparison of ultracold neutron sources for fundamental physics measurements

RADIOACTIVITY 1n(β-); measured ultracold neutron (UCN) density, and UCN lifetime inside the storage bottles at Mainz, PSI, PF2 and SUN-2 systems; experimental comparison of the leading UCN sources currently operating using a standard UCN storage bottle with a volume of 32 liters suitable for search for a permanent electric-dipole moment of the neutron (nEDM), and for other studies of fundamental parameters of the neutron in searches for new charge-parity-violating processes or exotic interactions beyond the Standard Model of particle physics.

doi: 10.1103/PhysRevC.95.045503
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2017BO19      Phys.Rev. C 96, 035205 (2017)

V.Bondar, S.Chesnevskaya, M.Daum, B.Franke, P.Geltenbort, L.Goltl, E.Gutsmiedl, J.Karch, M.Kasprzak, G.Kessler, K.Kirch, H.-C.Koch, A.Kraft, T.Lauer, B.Lauss, E.Pierre, G.Pignol, D.Reggiani, P.Schmidt-Wellenburg, Yu.Sobolev, T.Zechlau, G.Zsigmond

Losses and depolarization of ultracold neutrons on neutron guide and storage materials

RADIOACTIVITY 1n(β-); measured wall losses, depolarization probabilities, storage time constants of ultracold neutrons (UCN) on various materials: nickel-molybdenum alloys, natural nickel, nickel-vanadium, copper, and deuterated polystyrene (dPS) at the Institut Laue-Langevin (ILL) and Paul Scherrer Institute (PSI); deduced optimal conditions for the transport of polarized and unpolarized UCN. Comparison with literature values.

doi: 10.1103/PhysRevC.96.035205
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2017KA59      Eur.Phys.J. A 53, 226 (2017)

J.Kahlenberg, D.Ries, K.U.Ross, C.Siemensen, M.Beck, C.Geppert, W.Heil, N.Hild, J.Karch, S.Karpuk, F.Kories, M.Kretschmer, B.Lauss, T.Reich, Y.Sobolev, N.Trautmann

Upgrade of the ultracold neutron source at the pulsed reactor TRIGA Mainz

doi: 10.1140/epja/i2017-12428-9
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2014KA13      Eur.Phys.J. A 50, 78 (2014)

J.Karch, Yu.Sobolev, M.Beck, K.Eberhardt, G.Hampel, W.Heil, R.Kieser, T.Reich, N.Trautmann, M.Ziegner

Performance of the solid deuterium ultra-cold neutron source at the pulsed reactor TRIGA Mainz

doi: 10.1140/epja/i2014-14078-9
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2011DA18      Phys.Lett. B 704, 456 (2011)

M.Daum, P.Fierlinger, B.Franke, P.Geltenbort, L.Goeltl, E.Gutsmiedl, J.Karch, G.Kessler, K.Kirch, H.-C.Koch, A.Kraft, T.Lauer, B.Lauss, E.Pierre, G.Pignol, D.Reggiani, P.Schmidt-Wellenburg, Yu.Sobolev, T.Zechlau, G.Zsigmond

First observation of trapped high-field seeking ultracold neutron spin states

doi: 10.1016/j.physletb.2011.09.063
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