Gap Equations from Fermionic Constraints on the Light-Front
نویسنده
چکیده
We investigate how the gap equations are obtained in the light-front formalism within the four-Fermi theories. Instead of the zero-mode constraint, we find that the “fermionic constraints” on nondynamical spinor components are responsible for symmetry breaking. Careful treatment of the infrared divergence is indispensable for obtaining the gap equation.
منابع مشابه
Flow Equations in the Light-front Qcd: Mass Gap and Confinement
The light-front QCD is studied using the method of flow equations. Solving the light-front gluon gap equation, the effective gluon mass is generated dynamically. The effective interaction between static quark and antiquark, generated through elimination of the quark-gluon minimal coupling by flow equations, has the Coulomb, 1/q 2 , and confining, 1/q 4 , singular behavior. Elimination of the qu...
متن کاملGauge invariant Lagrangian construction for massive higher spin fermionic fields
We formulate a general gauge invariant Lagrangian construction describing the dynamics of massive higher spin fermionic fields in arbitrary dimensions. Treating the conditions determining the irreducible representations of Poincare group with given spin as the operator constraints in auxiliary Fock space, we built the BRST charge for the model under consideration and find the gauge invariant eq...
متن کاملIdentification of production constraints and yield gap monitoring of local rice (Oryza sativa L.) cultivars in Mazandaran province
One of the main problems for rice production is the large difference between farmers' actual yields and attainable yields. Therefore, it is important to identify the limiting factors on yield and yield gap. In this research, all performed management practices from seedbed preparation to harvesting in 228 paddy fields of local rice cultivars in the east, central and west parts of Mazandaran prov...
متن کاملA New Type of Loop Equations
We derive a new form of loop equations for light-like Wilson loops. In bosonic theories those loop equations close only for straight lightlike Wilson lines. In the case of N = 1 in ten dimensions they close for any light-like Wilson loop. Upon dimensional reduction to N = 4 SYM in four dimensions, these loops become exactly the chiral loops which can be evaluated semiclassically, in the strong ...
متن کاملبررسی اثرکامپوزیت Light Cure و کامپوزیت Self Cure بر باندگلاس آینومر نوری به عاج دندان (In-vitro)
Statement of Problem: Composite reins have recently become popular for posterior teeth restorations. Gap formation and subsequent microleakage are of the complications resulting from such restorations. One of the techniques to overcome polymerization shrinkage of composite resins is sandwich technique (application of glass ionomer as a base beneath the composite resin). Since polymerization pat...
متن کامل