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Akademický článek

Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI

Publikováno v: New Journal of Physics, Vol 25, Iss 10, p 103012 (2023)

We report on a search for a new, short-range, spin-dependent interaction using a modified version of the experimental apparatus used to measure the permanent neutron electric dipole moment at the Paul Scherrer Institute. This interaction, which could

Externí odkaz: https://doaj.org/article/f2cd585b451147daa750f12ca0b57af5

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Akademický článek

The design of the n2EDM experiment

Publikováno v: European Physical Journal C: Particles and Fields, Vol 81, Iss 6, Pp 1-32 (2021)

Abstract We present the design of a next-generation experiment, n2EDM, currently under construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim of carrying out a high-precision search for an electric dipole momen

Externí odkaz: https://doaj.org/article/52a421dbac924d1ba8f04e41b261c89c

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Akademický článek

A search for neutron to mirror-neutron oscillations using the nEDM apparatus at PSI

Publikováno v: Physics Letters B, Vol 812, Iss , Pp 135993- (2021)

It has been proposed that there could be a mirror copy of the standard model particles, restoring the parity symmetry in the weak interaction on the global level. Oscillations between a neutral standard model particle, such as the neutron, and its mi

Externí odkaz: https://doaj.org/article/80740b0ebdd7424d9ea2cefdc94d5887

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Akademický článek

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Akademický článek

Current stage of studies of the star configurations at intermediate energies with the use of the BINA detector

Autor: A. Wilczek, A. Szadzinski, K. Bodek, I. Ciepal, M. Eslami-Kalantari, N. Kalantar-Nayestanaki, G. Khatri, St. Kistryn, B. Klos, A. Kozela, J. Kubos, P. Kulessa, A. Lobejko, A. Magiera, H. Mardanpour, J. Messchendorp, I. Mazumdar, W. Parol, A. Ramazani-Moghaddam-Aran, R. Ramazani-Sharifabadi, D. Rozpedzik, I. Skwira-Chalot, E. Stephan, B. Wloch, A. Wronska, J. Zejma

Publikováno v: SciPost Physics Proceedings, Iss 3, p 005 (2020)

The Space Star Anomaly in proton-deuteron breakup cross-section occurs at energies of about 10 MeV. Data for higher energies are sparse. Therefore, a systematic scan over star configurations in the range of intermediate energies between 50 and 100 Me

Externí odkaz: https://doaj.org/article/258521d4c39b49ce8123892aa49e6b7c

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Akademický článek

Determination of phase space region for cross-check validation of the neutron detection in the BINA experiments

Autor: B. Włoch, K. Bodek, I. Ciepał, M. Eslami-Kalantari, J. Golak, N. Kalantar-Nayestanaki, G. Khatri, St. Kistryn, B. Kłos, A. Kozela, J. Kuboś, P. Kulessa, A. Łobejko, A. Magiera, H. Mardanpour, J. Messchendorp, I. Mazumdar, W. Parol, A. Ramazani-Moghaddam-Arani, D. Rozpędzik, R. Skibiński, I. Skwira-Chalot, E. Stephan, A. Wilczek, H. Witała, A Wrońska, J. Zejma

Publikováno v: SciPost Physics Proceedings, Iss 3, p 006 (2020)

Deuteron breakup reactions are basic laboratories for testing nuclear force models. Recent improvements in the data analysis allow for direct identification of neutrons in the BINA detection setup. This opens up the opportunity to study new aspects o

Externí odkaz: https://doaj.org/article/f6e6d93533c74c6cab43469bcb85bc0c

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Akademický článek

Few-nucleon system dynamics studied via deuteron-deuteron collisions at 160 MeV

Autor: I. Ciepał , K. Bodek, N. Kalantar-Nayestanaki , G. Khatri , St. Kistryn , B. Kłos, A. Kozela , J. Kuboś, P. Kulessa , A. Łobejko, A. Magiera , J. Messchendorp , I. Mazumdar, W. Parol , R. Ramazani-Sharifabadi, D. Rozpędzik , I. Skwira-Chalot , E. Stephan, A. Wilczek , B. Włoch, A. Wrońska , J. Zejma

Publikováno v: SciPost Physics Proceedings, Iss 3, p 018 (2020)

Four nucleon scattering at intermediate energies provides unique opportunities to study effects of the two key ingredients of the nuclear dynamics, the nucleon-nucleon P-wave (NNP-wave) and the three-nucleon force (3NF). This is possible only with sy

Externí odkaz: https://doaj.org/article/36ce95eb2f704ee5a165054153301d77

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Akademický článek

Constraining interactions mediated by axion-like particles with ultracold neutrons

Publikováno v: Physics Letters B, Vol 745, Iss , Pp 58-63 (2015)

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. The measurement was perfor

Externí odkaz: https://doaj.org/article/06cf2b88e9094fe0912430f8f8571e63

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Akademický článek

A measurement of the neutron to 199Hg magnetic moment ratio

Publikováno v: Physics Letters B, Vol 739, Iss , Pp 128-132 (2014)

The neutron gyromagnetic ratio has been measured relative to that of the 199Hg atom with an uncertainty of 0.8 ppm. We employed an apparatus where ultracold neutrons and mercury atoms are stored in the same volume and report the result γn/γHg=3.842

Externí odkaz: https://doaj.org/article/09df52acf1f14669804eb8102fbe6ea5

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