Proton decay of the closed neutron shell nucleus

1998 ◽  
Author(s):  
J. Uusitalo ◽  
C. N. Davids ◽  
P. J. Woods ◽  
D. Seweryniak ◽  
A. A. Sonzogni ◽  
...  
Keyword(s):  
Proton Decay ◽  
Shell Nucleus ◽  
Neutron Shell ◽  
Closed Neutron Shell

Absolute (γ, p0) and (γ, p1) cross sections and angular distributions for the closed-neutron shell nucleusY89

1980 ◽  
Vol 22 (6) ◽  
pp. 2396-2403 ◽  
Author(s):  
E. Van Camp ◽  
R. Van de Vyver ◽  
H. Ferdinande ◽  
E. Kerkhove ◽  
R. Carchon ◽  
...  
Keyword(s):  
Cross Sections ◽  
Angular Distributions ◽  
Neutron Shell ◽  
Closed Neutron Shell

Beta-decay of nuclei near the closed neutron shell

2008 ◽  
Vol 814 (1-4) ◽  
pp. 159-173 ◽  
Author(s):  
I.N. Borzov ◽  
J.J. Cuenca-García ◽  
K. Langanke ◽  
G. Martínez-Pinedo ◽  
F. Montes
Keyword(s):  
Beta Decay ◽  
Neutron Shell ◽  
Closed Neutron Shell

Proton emission from the closed neutron shell nucleus155Ta

1999 ◽  
Vol 59 (6) ◽  
pp. R2975-R2978 ◽  
Author(s):  
J. Uusitalo ◽  
C. N. Davids ◽  
P. J. Woods ◽  
D. Seweryniak ◽  
A. A. Sonzogni ◽  
...  
Keyword(s):  
Proton Emission ◽  
Neutron Shell ◽  
Closed Neutron Shell

Negative pion capture in atomic nuclei near the closed neutron shell at N = 82

1982 ◽  
Vol 382 (3) ◽  
pp. 501-512 ◽  
Author(s):  
V.S. Butsev ◽  
D. Chultem ◽  
I.N. Zhivotov
Keyword(s):  
Negative Pion ◽  
Atomic Nuclei ◽  
Neutron Shell ◽  
Closed Neutron Shell ◽  
Pion Capture

High spin states in the closed-neutron-shell nucleus142Nd

1988 ◽  
Vol 329 (4) ◽  
pp. 509-510 ◽  
Author(s):  
R. Wirowski ◽  
J. Yan ◽  
A. Dewald ◽  
A. Gelberg ◽  
W. Lieberz ◽  
...  
Keyword(s):  
High Spin ◽  
Spin States ◽  
High Spin States ◽  
Neutron Shell ◽  
Closed Neutron Shell

scholarly journals Search for proton decay via p→e+π0 and p→μ+π0 with an enlarged fiducial volume in Super-Kamiokande I-IV

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
A. Takenaka ◽  
K. Abe ◽  
C. Bronner ◽  
Y. Hayato ◽  
M. Ikeda ◽  
...  
Keyword(s):  
Proton Decay ◽  
Fiducial Volume

scholarly journals Light-cone sum rules for proton decay

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Ulrich Haisch ◽  
Amando Hala
Keyword(s):  
Lattice Qcd ◽  
Light Cone ◽  
Sum Rules ◽  
State Of The Art ◽  
Form Factors ◽  
Baryon Number ◽  
Proton Decay ◽  
Matrix Elements ◽  
Decay Channels ◽  
Systematic Uncertainties

Abstract We estimate the form factors that parametrise the hadronic matrix elements of proton-to-pion transitions with the help of light-cone sum rules. These form factors are relevant for semi-leptonic proton decay channels induced by baryon-number violating dimension-six operators, as typically studied in the context of grand unified theories. We calculate the form factors in a kinematical regime where the momentum transfer from the proton to the pion is space-like and extrapolate our final results to the regime that is relevant for proton decay. In this way, we obtain estimates for the form factors that show agreement with the state-of-the-art calculations in lattice QCD, if systematic uncertainties are taken into account. Our work is a first step towards calculating more involved proton decay channels where lattice QCD results are not available at present.

scholarly journals Observable proton decay in flipped SU(5)

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Maria Mehmood ◽  
Mansoor Ur Rehman ◽  
Qaisar Shafi
Keyword(s):  
Neutrino Mass ◽  
Gauge Coupling ◽  
Proton Decay ◽  
Type I ◽  
Mass Model ◽  
Intermediate Scale ◽  
Decay Channels ◽  
Proton Lifetime ◽  
Hybrid Inflation ◽  
Neutrino Mass Models

Abstract We explore proton decay in a class of realistic supersymmetric flipped SU(5) models supplemented by a U(1)R symmetry which plays an essential role in implementing hybrid inflation. Two distinct neutrino mass models, based on inverse seesaw and type I seesaw, are identified, with the latter arising from the breaking of U(1)R by nonrenormalizable superpotential terms. Depending on the neutrino mass model an appropriate set of intermediate scale color triplets from the Higgs superfields play a key role in proton decay channels that include p → (e+, μ+) π0, p → (e+, μ+) K0, p →$$ \overline{v}{\pi}^{+} $$ v ¯ π + , and p →$$ \overline{v}{K}^{+} $$ v ¯ K + . We identify regions of the parameter space that yield proton lifetime estimates which are testable at Hyper-Kamiokande and other next generation experiments. We discuss how gauge coupling unification in the presence of intermediate scale particles is realized, and a Z4 symmetry is utilized to show how such intermediate scales can arise in flipped SU(5). Finally, we compare our predictions for proton decay with previous work based on SU(5) and flipped SU(5).

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