A possible neutron-antineutron oscillation experiment at pf1b at the institut laue langevin

Vladimir Gudkov; Esben Klinby; Bernhard Meirose; David Milstead; Valery V. Nesvizhevsky; Konstantin V. Protasov; Nicola Rizzi; Valentina Santoro; William Michael Snow; Richard Wagner; Sze Chun Yiu

doi:10.3390/sym13122314

A possible neutron-antineutron oscillation experiment at pf1b at the institut laue langevin

Vladimir Gudkov, Esben Klinby, Bernhard Meirose, David Milstead, Valery V. Nesvizhevsky^*, Konstantin V. Protasov, Nicola Rizzi, Valentina Santoro, William Michael Snow, Richard Wagner, Sze Chun Yiu

^*Corresponding author for this work

Department of Physics

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Abstract

We consider a possible neutron–antineutron (n−n¯) oscillation experiment at the PF1B instrument at Institut Laue Langevin. It can improve the best existing constraint on the transition rate and also allow the testing of the methods and instrumentation which would be needed for a later larger-scale experiment at ESS. The main gain factors over the most competitive experiment, performed earlier at PF1 instrument at ILL, are: a more intense neutron beam and a new operating mode based on coherent n and n¯ mirror reflections. The installation of such an experiment would need a temporary replacement of the existing ballistic neutron guide by a specially designed n/n¯ guide with a gradually increasing cross section and a specially selected coating as well as the development and construction of an advanced n¯ annihilation detector with a high efficiency and low background. The overall gain factor could reach up to an order of magnitude and depends on the chosen experiment configuration

Original language	English
Article number	2314
Journal	Symmetry
Volume	13
Issue number	12
Number of pages	18
ISSN	2073-8994
DOIs	https://doi.org/10.3390/sym13122314
Publication status	Published - 2021

Keywords

Baryon number violation
Neutron-antineutron oscillations
Quantum reflection

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title = "A possible neutron-antineutron oscillation experiment at pf1b at the institut laue langevin",

abstract = "We consider a possible neutron–antineutron (n−n¯) oscillation experiment at the PF1B instrument at Institut Laue Langevin. It can improve the best existing constraint on the transition rate and also allow the testing of the methods and instrumentation which would be needed for a later larger-scale experiment at ESS. The main gain factors over the most competitive experiment, performed earlier at PF1 instrument at ILL, are: a more intense neutron beam and a new operating mode based on coherent n and n¯ mirror reflections. The installation of such an experiment would need a temporary replacement of the existing ballistic neutron guide by a specially designed n/n¯ guide with a gradually increasing cross section and a specially selected coating as well as the development and construction of an advanced n¯ annihilation detector with a high efficiency and low background. The overall gain factor could reach up to an order of magnitude and depends on the chosen experiment configuration",

keywords = "Baryon number violation, Neutron-antineutron oscillations, Quantum reflection",

author = "Vladimir Gudkov and Esben Klinby and Bernhard Meirose and David Milstead and Nesvizhevsky, {Valery V.} and Protasov, {Konstantin V.} and Nicola Rizzi and Valentina Santoro and Snow, {William Michael} and Richard Wagner and Yiu, {Sze Chun}",

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year = "2021",

doi = "10.3390/sym13122314",

language = "English",

volume = "13",

journal = "Symmetry",

issn = "2073-8994",

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T1 - A possible neutron-antineutron oscillation experiment at pf1b at the institut laue langevin

AU - Gudkov, Vladimir

AU - Klinby, Esben

AU - Meirose, Bernhard

AU - Milstead, David

AU - Nesvizhevsky, Valery V.

AU - Protasov, Konstantin V.

AU - Rizzi, Nicola

AU - Santoro, Valentina

AU - Snow, William Michael

AU - Wagner, Richard

AU - Yiu, Sze Chun

PY - 2021

Y1 - 2021

N2 - We consider a possible neutron–antineutron (n−n¯) oscillation experiment at the PF1B instrument at Institut Laue Langevin. It can improve the best existing constraint on the transition rate and also allow the testing of the methods and instrumentation which would be needed for a later larger-scale experiment at ESS. The main gain factors over the most competitive experiment, performed earlier at PF1 instrument at ILL, are: a more intense neutron beam and a new operating mode based on coherent n and n¯ mirror reflections. The installation of such an experiment would need a temporary replacement of the existing ballistic neutron guide by a specially designed n/n¯ guide with a gradually increasing cross section and a specially selected coating as well as the development and construction of an advanced n¯ annihilation detector with a high efficiency and low background. The overall gain factor could reach up to an order of magnitude and depends on the chosen experiment configuration

AB - We consider a possible neutron–antineutron (n−n¯) oscillation experiment at the PF1B instrument at Institut Laue Langevin. It can improve the best existing constraint on the transition rate and also allow the testing of the methods and instrumentation which would be needed for a later larger-scale experiment at ESS. The main gain factors over the most competitive experiment, performed earlier at PF1 instrument at ILL, are: a more intense neutron beam and a new operating mode based on coherent n and n¯ mirror reflections. The installation of such an experiment would need a temporary replacement of the existing ballistic neutron guide by a specially designed n/n¯ guide with a gradually increasing cross section and a specially selected coating as well as the development and construction of an advanced n¯ annihilation detector with a high efficiency and low background. The overall gain factor could reach up to an order of magnitude and depends on the chosen experiment configuration

KW - Baryon number violation

KW - Neutron-antineutron oscillations

KW - Quantum reflection

U2 - 10.3390/sym13122314

DO - 10.3390/sym13122314

M3 - Journal article

AN - SCOPUS:85121528356

SN - 2073-8994

VL - 13

JO - Symmetry

JF - Symmetry

IS - 12

M1 - 2314

ER -

A possible neutron-antineutron oscillation experiment at pf1b at the institut laue langevin

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Keywords

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