Production and measurement of $e^{+}e^{-}\rightarrow c\bar{c}$ signatures at the 250 GeV ILC
| Autor: | Irles, A., P��eschl, R., Richard, F. |
|---|---|
| Přispěvatelé: | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), ILD |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
positron: polarized beam
angular distribution: asymmetry Physics::Instrumentation and Detectors electron: polarized beam energy loss charm: pair production FOS: Physical sciences electron positron: annihilation jet: charge 250 GeV-cms ILC Coll High Energy Physics - Experiment K: particle identification High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) talk: Sendai 2019/10/28 Randall-Sundrum model [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] charm: particle identification beam: polarization electroweak interaction new physics ILD detector electron positron: colliding beams sensitivity time projection chamber High Energy Physics - Phenomenology cross section: hadronic [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] High Energy Physics::Experiment linear collider numerical calculations: Monte Carlo signature |
| Zdroj: | International Workshop on Future Linear Colliders International Workshop on Future Linear Colliders, Oct 2019, Sendai, Japan |
| Popis: | This document discusses for the first time the experimental prospects on the measurement of cross section and the forward-backward asymmetry in $e^{-}e^{+}\rightarrow c\bar{c}$ collisions at 250 GeV at the International Linear Collider operating polarised beams. The cross section will be normalised to the total hadronic cross section. We discuss the results for an analysis assuming the integrated luminosity of 2000 fb$^{-1}$ foreseen in the baseline project. The measurement requires determining the charge of both jets identified as originated by a $c$-quark. The charge measurement is optimally performed using the precise micro-vertex detector of the detector ILD and the charged kaon identification provided by the $\frac{dE}{dx}$ information of its TPC. Thanks to the beam polarisation, we can separate the four independent chirality combinations of the electroweak couplings, enhancing in this way the sensitivity to new physics effects. We show that due to the unprecedented precision that will be achieved by the ILC for these observables, the ILC will be sensitive to the existence of beyond the standard model Randal Sundrum resonances of several tens of TeV. Talk presented at the International Workshop on Future Linear Colliders (LCWS2019), Sendai, Japan, 28 October-1 November, 2019. C19-10-28 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|