Testing the Pauli exclusion principle with the NEMO-2 detector

R. Arnold - et al.

doi:doi:10.1007/s100500050354

EPJ

Testing the Pauli exclusion principle with the NEMO-2 detector

R. Arnold¹¹ - C. Augier⁹ - J. Baker⁵ - A. Barabash⁸ - D. Blum⁹ - V. Brudanin³ - A.J. Caffrey⁵ - J.E. Campagne⁹ - E. Caurier¹¹ - D. Dassié¹ - V. Egorov³ - T. Filipova³ - R. Gurriaran¹ - J.L. Guyonnet¹¹ - F. Hubert¹ - Ph. Hubert¹ - S. Jullian⁹ - O. Kochetov³ - I. Kisel³ - V.N. Kornoukhov⁸ - V. Kovalenko³ - D. Lalanne⁹ - F. Laplanche⁹ - F. Leccia¹ - I. Linck¹¹ - C. Longuemare² - Ch. Marquet¹ - F. Mauger² - H.W. Nicholson¹⁰ - I. Pilugin⁸ - F. Piquemal¹ - J-L. Reyss⁴ - X. Sarazin⁹ - F. Scheibling¹¹ - J. Suhonen⁶ - C.S. Sutton¹⁰ - G. Szklarz⁹ - V. Timkin³ - R. Torres¹ - V.I. Tretyak⁷ - V. Umatov⁸ - I. Vanyushin⁸ - A. Vareille¹ - Yu. Vasilyev⁷ - Ts. Vylov³

¹ CENBG, IN2P3-CNRS et Université de Bordeaux, 33170 Gradignan, France
² LPC, IN2P3-CNRS et Université de Caen, 14032 Caen, France
³ JINR, 141980 Dubna, Russia
⁴ CFR, CNRS, 91190 Gif sur Yvette, France
⁵ INEEL, Idaho Falls, ID 83415, USA
⁶ JYVÄSKYLÄ University, 40351 Jyväskylä, Finland
⁷ INR, 252028 Kiev, Ukraine
⁸ ITEP,117259 Moscow, Russia
⁹ LAL, IN2P3-CNRS et Université Paris-Sud, 91405 Orsay, France
¹⁰ MHC, South Hadley, Massachusetts 01075, USA
¹¹ IN2P3-CNRS et Université Louis Pasteur, 67037 Strasbourg, France

Received: 25 August 1999 Communicated by B. Povh

Abstract
The Pauli Exclusion Principle (PEP) was tested with the NEMO-2 detector. Limits at the 90% C.L. on the violation of PEP for p-shell nucleons in ¹²C were obtained. Specifically, transitions to the fully occupied 1s_1/2-shell yielded a limit of $4.2\cdot 10^{24}$ y for the process with emission of a $\gamma$ -quantum. Similarly limits of $3.1\cdot 10^{24}$ y for $\beta^-$ and $2.6\cdot 10^{24}$ y for $\beta ^{+}$ Pauli-forbidden transitions of ¹²C $\rightarrow ^{12}\tilde{\mathrm N}(^{12}\tilde{\mathrm B})$ are reported here.

PACS
23.90.+w Other topics in radioactive decay and in-beam spectroscopy - 11.30.Ly Other internal and higher symmetries

Winter Workshop on Complex Systems
21-26 January 2024
Catalonia, Spain

EPJ

Testing the Pauli exclusion principle with the NEMO-2 detector

Conference announcements