| Description: | [DPS Seminar] Rafiqul Rahaman (DPS, IISER Kolkata) -- On polarization parameters of spin-1 particles and anomalous couplings in ZV production at ILC |
| Date: | Wednesday, Apr 27, 2016 |
| Time: | 2 p.m. - 3:30 p.m. |
| Venue: | G02, Lecture Hall Complex |
| Details: | We propose a complete set of asymmetries to construct the polarization density matrix for a massive spin-$1$ particle at colliders. We study their sensitivity to the anomalous trilinear gauge couplings of neutral gauge bosons in $e^+e^-\to ZZ/Z\gamma$ processes with unpolarized initial beams. We use these polarization asymmetries, along with the cross-section, to obtain a simultaneous limit on all the anomalous coupling using Markov Chain Monte Carlo (MCMC) method. For an $e^+e^-$ collider running at $500$ GeV center-of-mass energy and $100$ fb$^{-1}$ of integrated luminosity the simultaneous limits on the anomalous couplings are $1\sim3\times 10^{-3}$. |
| Calendar: | Seminar Calendar (entered by ritesh.singh) |