260 research outputs found
Possible Restoration of Symmetry in the Presence of Fundamental Higgs
No full textWe study the symmetry in SU(3) Higgs theory using Monte Carlo simulation methods. We focus mainly on the distribution of the Polyakov loop and related parameters to study the symmetry. We show that the symmetry is explicitly broken when Higgs condesate acquires a nonzero value. However, we also show that there is a possibility of the symmetry in the Higgs symmetric phase where Higgs condensate vanishes
Notes on a Z′
No full textWe reexamine anomaly free U(1) extensions of the standard model in the light of LHC Drell-Yan data, constraints from unitarity, and neutrino-electron scattering to put model-independent bounds in the parameter space populated by MZ′, the Z- Z′ mixing angle (αz ), and the extra U(1) effective gauge coupling (gx′ ). We propose a formalism where any model dependence is absorbed into these three parameters
Modeling Neutron Damage in Silicon Detectors for High Energy Physics Experiments
No full textSilicon detectors are expected to experience an unprecedented neutron flux in the future upgrades of the detectors at the Large Hadron Collider (LHC). The challenging radiation environment of these experiments will severely affect the performance of silicon detectors. An irradiation campaign is generally carried out, followed by measurements, to develop radiation-hard silicon detectors. Device modeling complements the measurement results for the detailed understanding of the silicon detectors. Our Group at the University of Delhi successfully developed the radiation damage model for proton irradiation. However, a similar model for neutron irradiation has been missing. In the present work, a Technology Computer-Aided Design (TCAD) simulation software—Silvaco, has been used to study the effects of neutron irradiation on silicon detectors. The effects of radiation damage are incorporated using an effective two-trap model. A trap level is characterized by a number of trap parameters, e.g. trap type, trap energy level, introduction rate of acceptors and donors, and carrier (electrons and holes) capture cross section for that particular trap level. A systematic study of the sensitivity of various macroscopic parameters of silicon detectors to these trap parameters has been performed. The simulation results on leakage current (ILEAK), full depletion voltage (VFD) and charge collection efficiency (CCE), using the neutron damage model, are found to be in good agreement with the measurement results
Underlying Event studies and Charged particle multiplicities in inelastic pp events with the ATLAS detector
No full textUnderlying Event studies and Charged particle multiplicities in inelastic pp events with the ATLAS detecto
Multilayer Octagon-Cell Interconnection Networks: Performance Parameters and Its Analysis
No full textStudy of Phase Transition in Two-Flavour Quark Matter at Finite Volume
No full textLahiri A, Mukherjee TK, Ray R. Study of Phase Transition in Two-Flavour Quark Matter at Finite Volume. In: Behera PK, Bhatnagar V, Shukla P, Sinha R, eds. 23rd DAE High Energy Physics Symposium. Select Proceedings. Springer Proceedings in Physics. Vol 261. Singapore: Springer Nature Singapore; 2021: 543-549.We study some aspects of the phase transition of the finite size droplets with u and d quarks. We modelled the system through the Polyakov Nambu Jona-Lasinio Model (PNJL) and employ multiple reflection expansion to introduce the finite size effects. We discuss the qualitative behaviour of the order parameters, pressure and susceptibilities. We find increased fluctuations around the transition temperature region due to finite size effects and the fluctuations are more for small system size
Optimal Path Length for Octagon-Cell Interconnection Networks: Fundamental Theorems with Proofs
No full textOptimal Routing Algorithm in Multilayer Octagon-Cell: A New Class of Octagon-Cell Interconnected Networks
No full textGermplasm Resources, Genes and Perspective for Aromatic Rice
No full textAromatic rice is considered an important commodity in the global market because of its strong aroma and eating and cooking quality. Asian countries, such as India and Pakistan, are the leading traders of Basmati rice, whereas Thailand is the major supplier of Jasmine rice in the international market. The strong aroma of rice is associated with more than 300 volatile compounds, among which 2-acetyl-1-pyrroline (2-AP) is the principal component. 2-AP is a phenotypic expression of spontaneous mutations in the recessive gene OsBadh2 or Badh2. The present review focuses on the origin, evolution and diversity of genetic resources of aromatic rice available worldwide. A brief discussion is presented on the genes responsible for quality traits along with details of their molecular genetics. This compilation and discussion will be useful for future breeding programs and the biofortification of quality traits of aromatic rice to ensure food security and nutritional need
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