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papers

Publications (169)

hep-ph2020

Heavy vector and axial-vector $D$ mesons in hot magnetized asymmetric nuclear matter

Rajesh Kumar, Rahul Chhabra, Arvind Kumar

We observed the impact of finite magnetic field on the in-medium mass and decay constant of isospin averaged vector $D^{*} (D^{*^{+}}, D^{*^{0}})$ and axial-vector $D_{1} (D_{1}^{+}, D_{1}^{0})$ meso…

hep-ph2019

Charmonia and Bottomonia in asymmetric magnetized hot nuclear matter

Rajesh Kumar, Arvind Kumar

We investigate the mass-shift of $P$ -wave charmonium ( $I ¨ _{c}_{0}$ , $I ¨ _{c}_{1}$ ) and $S$ and $P$ -wave bottomonium ( $I^\cdot_{b}$ , $I^¥$ , $I ¨ _{b}_{0}$ and $I ¨ _{b}_{1}$ ) states in magnetized hot as…

cs.AI2025

Large Language Models Transform Organic Synthesis From Reaction Prediction to Automation

Kartar Kumar Lohana Tharwani, Rajesh Kumar, Sumita +2

Large language models (LLMs) are beginning to reshape how chemists plan and run reactions in organic synthesis. Trained on millions of reported transformations, these text-based mo…

gr-qc2023

Black hole formation in gravitational collapse and their astrophysical implications

Annu Jaiswal, Rajesh Kumar, Sudhir Kumar Srivastava +2

In this work, we have investigated a novel aspect of black hole (BH) formation during the collapse of a self-gravitating configuration. The exact solution of the Einstein field equ…

cs.CR2023

Dictionary Attack on IMU-based Gait Authentication

Rajesh Kumar, Can Isik, Chilukuri K. Mohan

We present a novel adversarial model for authentication systems that use gait patterns recorded by the inertial measurement unit (IMU) built into smartphones. The attack idea is in…

cond-mat.mes-hall2013

Fabrication of silicon nanocrystals using sequential Au ion implantation

Gayatri Sahu, Rajesh Kumar, D. P. Mahapatra

Silicon nanocrystals are produced using a two-stage gold ion implantation technique. First stage implantation using low energy ions leads to the formation of an amorphous Si (a-Si)…