Constraining interactions mediated by axion-like particles with ultracold neutrons by S. Afach, G. Ban, G. Bison, K. Bodek, M. Burghoff, M. Daum, M. Fertl, B. Franke, Z.D. Grujić, V. Hélaine, M. Kasprzak, Y. Kermaïdic, K. Kirch, P. Knowles, H.-C. Koch, S. Komposch, A. Kozela, J. Krempel, B. Lauss, T. Lefort, Y. Lemière, A. Mtchedlishvili, O. Naviliat-Cuncic, F.M. Piegsa, G. Pignol, P.N. Prashanth, G. Quéméner, D. Rebreyend, D. Ries, S. Roccia, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, J. Voigt, A. Weis, G. Wyszynski, J. Zejma, J. Zenner, G. Zsigmond

“…We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons and Hg199 atoms confined in the same volume. …”
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Ultracold neutron storage simulation using the Kassiopeia software package by Z Bogorad, P Mohanmurthy, J A Formaggio

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Experimental study of ultracold neutron production in pressurized superfluid helium by Schmidt-Wellenburg, P., Bossy, J., Farhi, E., Fertl, M., Leung, K. K. H., Rahli, A., Soldner, T., Zimmer, O., Farhi, Edward H

“…We investigate experimentally the pressure dependence of the production of ultracold neutrons (UCNs) in superfluid helium in the range from saturated vapor pressure to 20 bar. …”
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Probing of violation of Lorentz invariance by ultracold neutrons in the Standard Model Extension by A.N. Ivanov, M. Wellenzohn, H. Abele

“…We analyze a dynamics of ultracold neutrons (UCNs) caused by interactions violating Lorentz invariance within the Standard Model Extension (SME) (Colladay and Kostelecký (1997) [3] and Kostelecký (2004) [1]). …”
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Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI by N J Ayres, G Bison, K Bodek, V Bondar, T Bouillaud, E Chanel, P-J Chiu, B Clement, C B Crawford, M Daum, C B Doorenbos, S Emmenegger, M Fertl, P Flaux, W C Griffith, P G Harris, N Hild, M Kasprzak, K Kirch, V Kletzl, P A Koss, J Krempel, B Lauss, T Lefort, P Mohanmurthy, O Naviliat-Cuncic, D Pais, F M Piegsa, G Pignol, M Rawlik, I Rienäcker, D Ries, S Roccia, D Rozpedzik, P Schmidt-Wellenburg, N Severijns, B Shen, K Svirina, R Tavakoli Dinani, J A Thorne, S Touati, A Weis, E Wursten, N Yazdandoost, J Zejma, N Ziehl, G Zsigmond

“…This interaction, which could be mediated by axion-like particles, concerned the unpolarized nucleons (protons and neutrons) near the material surfaces of the apparatus and polarized ultracold neutrons stored in vacuum. The dominant systematic uncertainty resulting from magnetic-field gradients was controlled to an unprecedented level of approximately 4 pT cm ^−1 using an array of optically-pumped cesium vapor magnetometers and magnetic-field maps independently recorded using a dedicated measurement device. …”
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Estimated performance of the TRIUMF ultracold neutron source and electric dipole moment apparatus by Sidhu Steve, Schreyer Wolfgang, Vanbergen Sean, Kawasaki Shinsuke, Matsumiya Ryohei, Okamura Takahiro, Picker Ruediger

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Prospects for a neutron EDM measurement with an advanced ultracold neutron source at TRIUMF by Higuchi Takashi

“…The TUCAN (TRIUMF Ultra-Cold Advanced Neutron) collaboration is building a new high-intensity ultracold neutron (UCN) source at TRIUMF with the aim of measuring the neutron electric dipole moment (nEDM) with unprecedented precision. …”
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HEAT EXCHANGER FOR NEUTRON THERMALIZATION DEVICE IN BEAM RESEARCH VESSEL REACTOR by Anatoli P. Serebrov, Vitaly A. Lyamkin, Artem O. Koptyukhov, Mikhail S. Onegin, Anatoly N. Kovalenko

Subjects: “…ultracold neutrons…”
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Theory and applications of ultracold atoms in optical superlattices by Vaucher, B, Vaucher, Benoit

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A cold/ultracold neutron detector using fine-grained nuclear emulsion with spatial resolution less than 100 nm by N. Naganawa, T. Ariga, S. Awano, M. Hino, K. Hirota, H. Kawahara, M. Kitaguchi, K. Mishima, H. M. Shimizu, S. Tada, S. Tasaki, A. Umemoto

“…Abstract A new type of cold/ultracold neutron detector that can realize a spatial resolution of less than 100 nm was developed using nuclear emulsion. …”
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Characterization of PSI nEDM apparatus: T1, T*2, and UCN storage lifetime by MohanMurthy, Prajwal

Subjects: “…ultracold neutrons…”
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Improved Search for Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields with a Dedicated Apparatus at the PSI UCN Source by Nicholas J. Ayres, Zurab Berezhiani, Riccardo Biondi, Georg Bison, Kazimierz Bodek, Vira Bondar, Pin-Jung Chiu, Manfred Daum, Reza Tavakoli Dinani, Cornelis B. Doorenbos, Solange Emmenegger, Klaus Kirch, Victoria Kletzl, Jochen Krempel, Bernhard Lauss, Duarte Pais, Ingo Rienäcker, Dieter Ries, Nicola Rossi, Dagmara Rozpedzik, Philipp Schmidt-Wellenburg, Kazuo S. Tanaka, Jacek Zejma, Nathalie Ziehl, Geza Zsigmond

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A Novel Technique of Extracting UCN Decay Lifetime from Storage Chamber Measurements Dominated by Scattering Losses by Prajwal Mohanmurthy, Joseph Formaggio, Daniel J. Salvat, Jeff A. Winger

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A Search for Mirror Neutron Oscillation Using the nEDM Apparatus at PSI: Details about computing the mean time between collisions and extraction of the limit on the n-n' oscillatio... by MohanMurthy, Prajwal

Subjects: “…Ultracold neutron…”
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A Search for Neutron to Mirror Neutron Oscillation Using Neutron Electric Dipole Moment Measurements by Prajwal Mohanmurthy, Albert R. Young, Jeff A. Winger, Geza Zsigmond

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False EDM effects in PSI nEDM: Leakage Currents and Background Asymmetries by Mohanmurthy, Prajwal

Subjects: “…Ultracold neutron…”
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CryoEDM: A cryogenic experiment to measure the neutron electric dipole moment by Baker, C, Balashov, SN, Francis, V, Green, K, Grinten, M, Iaydjiev, P, Ivanov, SN, Khazov, A, Tucker, M, Wark, D, Davidson, A, Grozier, JR, Hardiman, M, Harris, P, Karamath, JR, Katsika, K, Pendlebury, J, Peeters, S, Shiers, D, Smith, P, Townsley, C, Wardell, I, Clarke, C, Henry, S, Kraus, H, McCann, M, Geltenbort, P, Yoshiki, H

“…The main characteristic is that it is operating entirely in a cryogenic environment, at temperatures of 0.7 K within superfluid helium. Ultracold neutrons are produced in a superthermal source and stored within the superfluid in a storage cell which is held in a magnetic and electric field. …”

Decoherence-free entropic gravity: Model and experimental tests by Alex J. Schimmoller, Gerard McCaul, Hartmut Abele, Denys I. Bondar

“…Some have ruled this theory out on grounds that entropic forces are by nature noisy and entropic gravity would therefore display far more decoherence than is observed in ultracold neutron experiments. We address this criticism by modeling linear gravity acting on small objects as an open quantum system. …”
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The PSI meson target facility and its upgrade IMPACT-HIMB by Kiselev Daniela, Baumann Pedro, Duperrex Pierre-André, Haj Tahar Malek, Jollet Sven, Knecht Andreas, Laube Daniel, Reggiani Davide, Snuverink Jochem, Sobbia Raffaello, Talanov Vadim

“…Besides two spallation targets for thermal/cold neutrons (SINQ) and for ultracold neutrons (UCN), the beam feeds two meson production targets Target M and Target E. …”
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Search for passing-through-walls neutrons constrains hidden braneworlds by Michaël Sarrazin, Guillaume Pignol, Jacob Lamblin, Jonhathan Pinon, Olivier Méplan, Guy Terwagne, Paul-Louis Debarsy, Fabrice Petit, Valery V. Nesvizhevsky

“…The limit, p<4.6×10−10 at 95% C.L., is 4 orders of magnitude better than the previous bound based on the disappearance of stored ultracold neutrons. In the simplest braneworld scenario, for two parallel Planck-scale branes separated by a distance d, we conclude that d>87 in Planck length units.…”
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