scholarly journals Detection of intermediate vector bosons and high-energy weak interactions from decay of hadron resonances

1978 ◽  
Vol 146 (1) ◽  
pp. 109-156 ◽  
Author(s):  
H.E. Haber ◽  
G.L. Kane
Keyword(s):  
Weak Interactions ◽  
High Energy ◽  
Vector Bosons ◽  
Intermediate Vector

A Gauge Theory for the Weak and Electromagnetic Interactions

2021 ◽  
pp. 388-404
Author(s):  
J. Iliopoulos ◽  
T.N. Tomaras
Keyword(s):  
Gauge Theory ◽  
Quark Model ◽  
Weak Interactions ◽  
Mass Matrix ◽  
Natural Source ◽  
Apparent Difference ◽  
Electromagnetic Interactions ◽  
Vector Bosons ◽  
Gim Mechanism ◽  
Intermediate Vector

In this chapter we develop the Glashow–Weinberg–Salam theory of electromagnetic and weak interactions based on the gauge group SU(2) × U(1). We show that the apparent difference in strength between the two interactions is due to the Brout–Englert–Higgs phenomenon which results in heavy intermediate vector bosons. The model is presented first for the leptons, and then we argue that the extension to hadrons requires the introduction of a fourth quark. We show that the GIM mechanism guarantees the natural suppression of strangeness changing neutral currents. In the same spirit, the need to introduce a natural source of CP-violation leads to a six quark model with the Cabibbo–Kobayashi–Maskawa mass matrix.

scholarly journals Astrophysical Consequences of the Existence of Charged Intermediate Vector Bosons

1968 ◽  
Vol 21 (2) ◽  
pp. 139 ◽  
Author(s):  
JA Campbell
Keyword(s):  
Weak Interactions ◽  
Vector Boson ◽  
Accurate Information ◽  
Coupling Constant ◽  
Evolutionary Time ◽  
Two Photon ◽  
Vector Bosons ◽  
Intermediate Vector ◽  
Photon Annihilation ◽  
Intermediate Vector Boson

Two-photon annihilation into a neutrino-antineutrino pair, which is forbidden to the lowest order in the coupling constant for weak interactions if the conventional form of weak interaction is assumed, is permitted at that order if it is supposed that the reaction is carried by a charged intermediate vector boson (W). The rate of loss of energy in stellar evolution through this process is calculated. Evolutionary time scales derived with and without this rate are compared with results from astronomical observations. Comparisons with present data are inconclusive, but further observations and calculations that may give more accurate information concerning the question of the existence of charged W mesons are suggested.

More on the Fundamental Forces and Their “Carriers”

2018 ◽  
pp. 40-51
Author(s):  
Alvaro De Rújula
Keyword(s):  
Quantum Chromodynamics ◽  
Weak Interactions ◽  
Vector Bosons ◽  
Fundamental Forces ◽  
Intermediate Vector ◽  
The Way

A discussion of the “carriers” of the basic forces of nature and the way they “work.” Electrical charges and their interaction with photons (QED). Gravitons and the identity of inertial and gravitational masses. Intermediate vector bosons and the weak interactions. Gluons and the “chromodynamic” interactions (Quantum Chromodynamics: QCD). Adding electric charges and “colored” chromodynamic charges. Confinement in QCD.

I. Theoretical aspects of high energy neutrino interactions

1967 ◽  
Vol 301 (1465) ◽  
pp. 107-112 ◽  
Keyword(s):  
Particle Production ◽  
Weak Interactions ◽  
Vector Boson ◽  
Strange Particle ◽  
High Energy ◽  
High Energy Neutrino ◽  
Fermi Interaction ◽  
Energy Neutrino ◽  
Strange Particle Production ◽  
Intermediate Vector

In recent years high energy neutrinos produced at the large accelerators have been used to investigate the properties of weak interactions. As a result we know now that there are at least two kinds of neutrinos, and that an eventual intermediate vector boson is heavier than 2 GeV. In addition, the conventional theory of weak interactions has been tested in a larger domain, and found to be in reasonable agreement with experiment; in particular, strange particle production does not exceed appreciably what is predicted by Cabibbo’s theory, which may be inter­preted as further evidence against the older universal Fermi interaction theory. Thus the situation at this moment is quite satisfactory, as far as the established notions on weak interactions are concerned. We may now ask to what extent high energy neutrino physics may be used as a tool to extend our knowledge of the weak interactions.

Decays of intermediate vector bosons, radiative corrections and QCD jets

1980 ◽  
Vol 166 (3) ◽  
pp. 460-492 ◽  
Author(s):  
David Albert ◽  
William J. Marciano ◽  
Daniel Wyler ◽  
Zohreh Parsa
Keyword(s):  
Radiative Corrections ◽  
Vector Bosons ◽  
Intermediate Vector

scholarly journals Non-standard interactions in $\tau^- \to (\pi^-\eta,\pi^-\pi^0)\nu_{\tau}$ decays

2019 ◽  
Author(s):  
Gabriel Lopez Castro
Keyword(s):  
Weak Interactions ◽  
High Energy ◽  
New Physics ◽  
Tau Lepton ◽  
Tau Decays ◽  
Set Constraints ◽  
Belle Ii ◽  
Lepton Decays ◽  
Energy Processes ◽  
New Interactions

Originally thought as clean processes to study the hadronization of the weak currents, semileptonic tau lepton decays can be useful to set constraints on non-standard (NS) weak interactions. We study the effects of new interactions in \tau^- \to (\pi^-\eta,\pi^-\pi^0)\nu_{\tau}τ−→(π−η,π−π0)ντ decays and find that they are sensitive probes of these New Physics effects in the form of scalar and tensor interactions, respectively. Further improved measurements at Belle II will set limits on these scalar interactions that are similar to other low and high energy processes.

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