Dr. Aparna Dixit PSIT - Profile on Academia.edu (original) (raw)

Dr. Aparna Dixit PSIT

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Papers by Dr. Aparna Dixit PSIT

Research paper thumbnail of SU(3)C⊗SU(3)L⊗U(1)X gauge symmetry from SU(4)PS⊗SU(4)L+R

Physical Review D, 2005

We consider an extension of the standard model gauge symmetry to a local gauge group SU(3) C ⊗SU(... more We consider an extension of the standard model gauge symmetry to a local gauge group SU(3) C ⊗SU(3) L ⊗U(1) X which is a subgroup of SU(4) PS ⊗ SU(4) L+R .The symmetry breaking pattern is SU(4) SU(3) ⊗U(1) for both weak SU(4) L+R and strong Pati-Salam SU(4) PS group. The SU(3) C ⊗U(1) B-L ⊗SU(3) L ⊗U(1) Y1 (3-3-1-1) local gauge symmetry breaks to SU(3) C ⊗SU(3) L ⊗U(1) X and generates a 3-3-1 model with threegeneration, anomaly-free fermions which transform as bifundamentals of (3-3-1-1). The 3-3-1 model is of Pleitez-Frampton type but SU(3) L gauge bosons (B-L = 0) do not include bilepton gauge boson.The neutral gauge bosons include γ, Z, Z / and a fourth, heavy gauge boson Z // which decouples from rest but can decay to ordinary fermions. An analysis for two-body decays of neutral Z / gauge boson is presented .From Yukawa interactions, the masses of all exotic fermions are obtained in the TeV region .This restricts Z / decays to exotic fermions The Z / is also found to be leptophobic and decays mainly to quarks.

Research paper thumbnail of SU(3)C⊗SU(3)L⊗U(1)X gauge symmetry from SU(4)PS⊗SU(4)L+R

Physical Review D, 2005

We consider an extension of the standard model gauge symmetry to a local gauge group SU(3) C ⊗SU(... more We consider an extension of the standard model gauge symmetry to a local gauge group SU(3) C ⊗SU(3) L ⊗U(1) X which is a subgroup of SU(4) PS ⊗ SU(4) L+R .The symmetry breaking pattern is SU(4) SU(3) ⊗U(1) for both weak SU(4) L+R and strong Pati-Salam SU(4) PS group. The SU(3) C ⊗U(1) B-L ⊗SU(3) L ⊗U(1) Y1 (3-3-1-1) local gauge symmetry breaks to SU(3) C ⊗SU(3) L ⊗U(1) X and generates a 3-3-1 model with threegeneration, anomaly-free fermions which transform as bifundamentals of (3-3-1-1). The 3-3-1 model is of Pleitez-Frampton type but SU(3) L gauge bosons (B-L = 0) do not include bilepton gauge boson.The neutral gauge bosons include γ, Z, Z / and a fourth, heavy gauge boson Z // which decouples from rest but can decay to ordinary fermions. An analysis for two-body decays of neutral Z / gauge boson is presented .From Yukawa interactions, the masses of all exotic fermions are obtained in the TeV region .This restricts Z / decays to exotic fermions The Z / is also found to be leptophobic and decays mainly to quarks.

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