Measurement of π0 Mesonic Decay Widths (Γπo) of Λ Hypernuclei, $ _\Lambda ^5 {\rm{He}} $ and $ _\Lambda ^{12} {\rm{C}} $

2004 ◽  
Author(s):  
H. YIM ◽  
Keyword(s):  
Mesonic Decay ◽  
Decay Widths

Mesonic and non-mesonic decay widths ofΛ4H andΛ4He

1998 ◽  
Vol 639 (1-2) ◽  
pp. 251c-260c ◽  
Author(s):  
H. Outa ◽  
M. Aoki ◽  
R.S. Hayano ◽  
T. Ishikawa ◽  
M. Iwasaki ◽  
...  
Keyword(s):  
Mesonic Decay ◽  
Decay Widths

Mesonic and non-mesonic decay widths of Λ12C

2000 ◽  
Vol 670 (1-4) ◽  
pp. 281-284 ◽  
Author(s):  
H. Outa ◽  
S. Ajimura ◽  
K. Aoki ◽  
H. Bhang ◽  
T. Hasegawa ◽  
...  
Keyword(s):  
Mesonic Decay ◽  
Decay Widths

scholarly journals Lowering the scale of Pati-Salam breaking through seesaw mixing

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Matthew J. Dolan ◽  
Tomasz P. Dutka ◽  
Raymond R. Volkas
Keyword(s):  
Degrees Of Freedom ◽  
Tree Level ◽  
Charged Current ◽  
Meson Decay ◽  
Neutrino Masses ◽  
Down Quark ◽  
The Standard Model ◽  
Decay Widths ◽  
Left And Right ◽  
Charged Leptons

Abstract We analyse the experimental limits on the breaking scale of Pati-Salam extensions of the Standard Model. These arise from the experimental limits on rare-meson decay processes mediated at tree-level by the vector leptoquark in the model. This leptoquark ordinarily couples to both left- and right-handed SM fermions and therefore the meson decays do not experience a helicity suppression. We find that the current limits vary from $$ \mathcal{O} $$ O (80–2500) TeV depending on the choice of matrix structure appearing in the relevant three-generational charged-current interactions. We extensively analyse scenarios where additional fermionic degrees of freedom are introduced, transforming as complete Pati-Salam multiplets. These can lower the scales of Pati-Salam breaking through mass-mixing within the charged-lepton and down-quark sectors, leading to a helicity suppression of the meson decay widths which constrain Pati-Salam breaking. We find four multiplets with varying degrees of viability for this purpose: an SU(2)L/R bidoublet, a pair of SU(4) decuplets and either an SU(2)L or SU(2)R triplet all of which contain heavy exotic versions of the SM charged leptons. We find that the Pati-Salam limits can be as low as $$ \mathcal{O} $$ O (5–150) TeV with the addition of these four multiplets. We also identify an interesting possible connection between the smallness of the neutrino masses and a helicity suppression of the Pati-Salam limits for three of the four multiplets.

scholarly journals Resonance trapping and saturation of decay widths

1998 ◽  
Vol 58 (2) ◽  
pp. 1334-1345 ◽  
Author(s):  
E. Persson ◽  
T. Gorin ◽  
I. Rotter
Keyword(s):  
Resonance Trapping ◽  
Decay Widths

scholarly journals Exotic meson decay widths using lattice QCD

2006 ◽  
Vol 74 (3) ◽  
Author(s):  
M. S. Cook ◽  
H. R. Fiebig
Keyword(s):  
Lattice Qcd ◽  
Meson Decay ◽  
Exotic Meson ◽  
Decay Widths

scholarly journals Heavy quark symmetry constraints on semileptonic form factors and decay widths of doubly heavy baryons

2008 ◽  
Vol 663 (3) ◽  
pp. 234-241 ◽  
Author(s):  
E. Hernández ◽  
J. Nieves ◽  
J.M. Verde-Velasco
Keyword(s):  
Heavy Quark ◽  
Form Factors ◽  
Heavy Quark Symmetry ◽  
Heavy Baryons ◽  
Decay Widths ◽  
Symmetry Constraints
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