Angular distributions of the decay tau to K PI neutrino

• Grant number: 18/12305-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date: December 01, 2018
• End date: January 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Diogo Rodrigues Boito
• Grantee: Gabriel Augusto das Neves
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 15/20689-9 - Precise determination of fundamental QCD parameters, AP.JP
• Associated scholarship(s): 19/17046-0 - Higher-order perturbative QCD in the decay H to gg, BE.EP.MS

Abstract

Tau leptons decays can be used to accurately study several aspects of Standard Model physics and its extensions. In the present work, we will study angular distributions in decay tau to K pi neutrino. In this channel, Belle and BaBar collaborations measured a CP symmetry violation of 2.8 \sigma from Standard Model. Our objective is to develop angular observables - such as asymmetries - that could be useful to extract the scalar factor KPi, and also to study possible sources of CP violations in this decay. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BOITO, D.; DAS NEVES, G.; PICLUM, J.. H -> gamma gamma to all orders in alpha(s) in the large-beta(0) limit of QCD. PHYSICAL REVIEW D, v. 106, n. 9, p. 10-pg., 2022-11-23. (15/20689-9, 18/12305-4, 19/17046-0, 21/06756-6)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

NEVES, Gabriel Augusto das. Higher-order QCD in the decay Higgs to two photons. 2021. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) São Carlos.