2004/06/23 by H.O. Back, Borexino collaboration, H. O. Back +98 · 2 citations
Physics and Astronomy · #Combinatorics #Crystallography #Energy (signal processing) #Neutrino Physics Research #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Pauli exclusion principle #Physics #Quantum mechanics #hep-ph
paper · pdf · doi:10.1140/epjc/s2004-01991-1
published as Eur.Phys.J.C37:421-431,2004 · 10 pages, 5 figures. Submitted to European Physical Journal C Spokesperson of the Borexino Collaboration: G.Bellini. Corresponding authors: A.Derbin, O.Smirnov
arxiv created 2004/06/23 · openalex publication_date 2004/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The Pauli exclusion principle (PEP) has been tested for nucleons (n,p) in 12C and 16O nuclei, using the results of background measurements with the prototype of the Borexino detector, the Counting Test Facility (CTF). The approach consisted of a search for γ, n, p and/or α's emitted in a non-Paulian transition of 1P- shell nucleons to the filled 1S1/2 shell in nuclei. Similarly, the Pauli-forbidden β± decay processes were searched for. Due to the extremely low background and the large mass (4.2 tons) of the CTF detector, the following most stringent up-to-date experimental bounds on PEP violating transitions of nucleons have been established: τ(12C→12\widetildeC+γ) > 2.1⋅1027 y, τ(12C→11\widetildeB+ p) > 5.0⋅1026 y, τ(12C(16O)→11\widetildeC(15\widetildeO)+ n) > 3.7 ⋅ 1026 y, τ(12C→8\widetildeBe+α) > 6.1 ⋅ 1023 y, τ(12C→12\widetildeN+ e- + \widetildeνe)> 7.6 ⋅ 1027 y and τ(12C→12\widetildeB+ e+ + νe)> 7.7 ⋅ 1027 y, all at 90% C.L.