scholarly journals Photoproduction γp→K+Λ(1520) in an effective Lagrangian approach

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Neng-Chang Wei ◽  
Yu Zhang ◽  
Fei Huang ◽  
De-Min Li
Keyword(s):  
Lagrangian Approach ◽  
Effective Lagrangian

scholarly journals Effective-Lagrangian approach to γγ → WW I: Couplings and amplitudes

2006 ◽  
Vol 45 (3) ◽  
pp. 679-691 ◽  
Author(s):  
O. Nachtmann ◽  
F. Nagel ◽  
M. Pospischil ◽  
A. Utermann
Keyword(s):  
Lagrangian Approach ◽  
Effective Lagrangian

scholarly journals Effective Lagrangian approach to the fermion mass problem

1994 ◽  
Vol 49 (9) ◽  
pp. 4773-4779
Author(s):  
D. S. Shaw ◽  
R. R. Volkas
Keyword(s):  
Lagrangian Approach ◽  
Fermion Mass ◽  
Mass Problem ◽  
Effective Lagrangian

scholarly journals Effective Lagrangian approach to neutrinoless double beta decay and neutrino masses

2012 ◽  
Vol 2012 (6) ◽  
Author(s):  
Francisco del Aguila ◽  
Alberto Aparici ◽  
Subhaditya Bhattacharya ◽  
Arcadi Santamaria ◽  
Jose Wudka
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Lagrangian Approach ◽  
Neutrino Masses ◽  
Effective Lagrangian

scholarly journals IMPLICATIONS OF $D^0$--$\overline{D^0}$ ON THE RARE TOP QUARK DECAYS t → uγ AND t → ug

2009 ◽  
Vol 24 (39) ◽  
pp. 3219-3226 ◽  
Author(s):  
J. I. ARANDA ◽  
A. CORDERO-CID ◽  
F. RAMÍREZ-ZAVALETA ◽  
J. J. TOSCANO ◽  
E. S. TUTUTI
Keyword(s):  
Top Quark ◽  
Mass Difference ◽  
Branching Ratios ◽  
Lagrangian Approach ◽  
Effective Lagrangian ◽  
Quark Decays ◽  
Model Independent

The recently observed mass difference of the [Formula: see text] mixing is used to predict the branching ratios of the rare top quark decays t → uγ and t → ug in a model-independent way using the effective Lagrangian approach. It is found that Br (t → uγ) < 4 × 10-4 and Br (t → ug) < 2 × 10-3, which may still be within reach of the LHC collider.

scholarly journals Discovery Potential for the Neutral Charmonium-LikeZ0(4200)byp-pAnnihilation

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Xiao-Yun Wang ◽  
Xu-Rong Chen
Keyword(s):  
Center Of Mass ◽  
Lagrangian Approach ◽  
Future Experiment ◽  
Production Mechanism ◽  
Energy Window ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Effective Lagrangian ◽  
The Future ◽  
Discovery Potential

Inspired by the observation of charmonium-likeZ(4200), we explore the discovery potential of the neutralZ0(4200)production by antiproton-proton annihilation with an effective Lagrangian approach. By investigating thep-p→J/ψπ0process including theZ0(4200)signal and background contributions, it is found that the center of mass energyEc.m.≃4.0–4.5 GeV is the best energy window for searching the neutralZ0(4200), where the signal can be clearly distinguished from background. The relevant calculations not only are helpful to search for the neutralZ0(4200)in the future experiment but also will promote the understanding of the nature and production mechanism of neutralZ0(4200)better.

scholarly journals THE CHIRAL APPROACH TO THE ELECTROWEAK INTERACTIONS

1993 ◽  
Vol 08 (28) ◽  
pp. 4937-4972 ◽  
Author(s):  
F. FERUGLIO
Keyword(s):  
Lagrangian Approach ◽  
Electroweak Interactions ◽  
Effective Lagrangian

The effective Lagrangian approach is reviewed and applied to the case of electroweak interactions.

scholarly journals PROBES OF THE VACUUM STRUCTURE OF QUANTUM FIELDS IN CLASSICAL BACKGROUNDS

2002 ◽  
Vol 11 (01) ◽  
pp. 1-34 ◽  
Author(s):  
L. SRIRAMKUMAR ◽  
T. PADMANABHAN
Keyword(s):  
Lagrangian Approach ◽  
Quantum Fields ◽  
Flat Spacetime ◽  
Vacuum Structure ◽  
Effective Lagrangian ◽  
Inertial Frames ◽  
Different Types ◽  
Rotating Frames

We compare the different approaches presently available in literature to probe the vacuum structure of quantum fields in classical electromagnetic and gravitational backgrounds. We compare the results from the Bogolubov transformations and the effective Lagrangian approach with the response of monopole detectors (of the Unruh–DeWitt type) in noninertial frames in flat spacetime and in inertial frames in different types of classical electromagnetic backgrounds. We also carry out such a comparison in inertial and rotating frames when boundaries are present in flat spacetime. We find that the results from these different approaches do not, in general, agree with each other. We attempt to identify the origin of these differences and then go on to discuss its implications for classical gravitational backgrounds.

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