Higher-order induced axial-vector isoscalar neutral current in gauge theories

1979 ◽  
Vol 19 (7) ◽  
pp. 2165-2178 ◽  
Author(s):  
R. N. Mohapatra ◽  
G. Senjanović
Keyword(s):  
Gauge Theories ◽  
Neutral Current ◽  
Axial Vector ◽  
Higher Order

scholarly journals Cross section calculations for neutrino-nucleus reactions at low and intermediate energies.

2020 ◽  
Vol 15 ◽  
pp. 249
Author(s):  
V. Ch. Chasioti ◽  
T. S. Kosmas ◽  
P. Divari
Keyword(s):  
Cross Sections ◽  
Neutral Current ◽  
Axial Vector ◽  
Random Phase ◽  
Neutrino Energy ◽  
Reaction Cross ◽  
Neutrino Experiment ◽  
Final State ◽  
Quasi Particle ◽  
Intermediate Energies

Inelastic neutrino-nucleus reaction cross sections are studied focusing on the neutral current processes. Particularly, we investigate the angular and initial neutrino-energy dependence of the differential and integrated cross sections for low and intermediate energies of the incoming neutrino (or antineutrino). Contributions coming from both, the vector and axial-vector components of the corresponding hadronic currents have been included. The initial and final state nuclear wave-functions have been calculated in the context of the Quasi-particle Random Phase Approximation (QRPA) tested on the reproducibility of the low-lying energy spectrum (up to about 5 MeV) of the studied nuclei. The results presented here refer to the nuclear isotopes 16O and 98Mo. As it is well known, O plays a significant role in supernova evolution phenomena and Mo is used as a target in the MOON neutrino experiment at Japan.

Neutral-current constriants on gauge theories. II

1978 ◽  
Vol 18 (5) ◽  
pp. 1647-1660 ◽  
Author(s):  
T. Rizzo ◽  
V. S. Mathur
Keyword(s):  
Gauge Theories ◽  
Neutral Current

The full vertex functions constrained by the longitudinal and transverse Ward–Takahashi identities in massless QED3 theory

2021 ◽  
pp. 2150039
Author(s):  
Yang Yu ◽  
Jian-Feng Li
Keyword(s):  
Vertex Function ◽  
Quantum Electrodynamics ◽  
Gauge Theories ◽  
Chiral Limit ◽  
Wilson Line ◽  
Axial Vector ◽  
Fermion Masses ◽  
Low Dimensional ◽  
Full Vector

In this paper, we find apart from the Ward–Takahashi (WT) identity, the identity between gamma matrices can also constrain the vertex functions in low-dimensional gauge theories. In (1 + 1) dimensions, the identity between gamma matrices gives the identity between vector and axial-vector vertex functions while in (2 + 1) dimensions it leads to the identity between vector and tensor vertex functions. Then, we derive the expressions of the full scalar, vector and tensor vertex functions in (2 + 1) dimensions Quantum Electrodynamics (QED3) by using the longitudinal and transverse WT identities for vector and tensor currents. Furthermore, we find that in the chiral limit with zero fermion masses, the contribution of Wilson line in full vector vertex function is eliminated and the full vector vertex function is strictly expressed in terms of the fermion propagators when using the identity between vector and tensor vertex functions to further constraint the vertex functions.

scholarly journals A note on transverse axial vector and vector anomalies in U(1) gauge theories

2003 ◽  
Vol 569 (3-4) ◽  
pp. 211-218 ◽  
Author(s):  
Wei-Min Sun ◽  
Hong-Shi Zong ◽  
Xiang-Song Chen ◽  
Fan Wang
Keyword(s):  
Gauge Theories ◽  
Axial Vector ◽  
Transverse Axial

ENHANCED DUALITY SYMMETRIES FOR A PAIR OF DIRAC–BORN–INFELD ACTIONS

2012 ◽  
Vol 27 (10) ◽  
pp. 1250056
Author(s):  
HITOSHI NISHINO ◽  
SUBHASH RAJPOOT
Keyword(s):  
Vector Field ◽  
Axial Vector ◽  
Interaction Constant ◽  
Higher Order ◽  
Duality Condition ◽  
Higher Order Terms ◽  
Total Action

We consider a total action composed of two Dirac–Born–Infeld (DBI) actions: one for a vector field Aμ and another for an axial vector field Bμ. We impose a duality condition [Formula: see text], where [Formula: see text] is the Hodge dual of Gμν, and g is a DBI interaction constant. Interestingly, there are two different global duality rotation symmetries in the presence of DBI interactions: (i) [Formula: see text], [Formula: see text], and (ii) δζAμ = - ζBμ, δζBμ = + ζAμ. Both of these symmetry are on-shell symmetries, including nonlinear higher-order terms. The remarkable aspect is that these symmetries are valid even in the presence of DBI interactions. The coupling of this system to N = 1 supergravity is also discussed.

Neutral-current results without gauge theories

1979 ◽  
Vol 19 (1) ◽  
pp. 335-346 ◽  
Author(s):  
James D. Bjorken
Keyword(s):  
Gauge Theories ◽  
Neutral Current

scholarly journals Higher-order Sudakov resummation in coupled gauge theories

2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Georgios Billis ◽  
Frank J. Tackmann ◽  
Jim Talbert
Keyword(s):  
Gauge Theories ◽  
Higher Order
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