Precision tests of fundamental physics with light mesons

12 Jun 2023, 09:00 → 16 Jun 2023, 18:00 Europe/Rome

Aula Renzo Leonardi (ECT*)

Bastian Kubis (HISKP Bonn, Germany), Daniel Lersch (FSU Tallahassee, United States), Igal Jaegle (Jefferson Lab, United States), Susan Schadmand (GSI Darmstadt)

Hadronic and radiative decays of light mesons provide a unique laboratory to test low-energy Quantum Chromodynamics and search for new physics beyond the Standard Model. Recent years have brought advances in theoretical and experimental approaches throughout the hadron and particle physics community. New experimental data will soon offer critical input to precisely determine e.g., the light quark mass ratios, meson mixing parameters, and hadronic contributions to the anomalous magnetic moment of the muon. The approaches provide sensitive probes to test potential new physics including searches for hidden photons, light Higgs scalars, and axion-like particles that are complementary to worldwide efforts to detect new light particles below the GeV mass scale, as well as tests of discrete symmetry violation. Experts and respective communities will discuss updates on theoretical developments, experimental strategies, and identify further research.

       

Monday 12 June

13:30 → 13:55 REGISTRATION WORKSHOP PARTICPANTS

13:55 → 14:00 Welcome ECT* Director

14:00 → 15:45 Dalitz Plot Analyses

14:00 Precision meson spectrscopy

Speaker: Adam Szczepanak

Trento-Szczepaniak-June-2023.pdf

14:35 JPAC Dalitz plot analysis of eta->3pi

Speaker: Igor Danilkin (Johannes Gutenberg University of Mainz)

Danilkin2023_Trento.pdf

15:10 Dalitz Plot Analysis of η′ → η𝜋𝜋 with GlueX Data

Speaker: Olga Cortes Becerra (The George Washington University)

CortesBecerra_Dalitz_ECT.pdf

15:45 → 16:15 coffee break

16:15 → 17:25 Dalitz Plot Analyses

16:15 omega and J/psi decay into 3pi within the Khuri-Treiman formalism

Speaker: Miguel Albaladejo (IFIC)

Albaladejo_ECT_KT.pdf

16:50 eta, eta' mixing from the lattice

Speaker: Konstantin Ottnad (JGU Mainz)

talk_OTTNAD_ECTstar_2023.pdf

17:30 → 18:00 Discussion

Tuesday 13 June

09:00 → 10:45 Prospects for Future Studies

09:00 Hadron spectroscopy at intensity frontier

Speaker: Marco Battaglieri (INFN-GE)

ECTstarJun23-Battaglieri.pdf

09:35 Prospects for studies of production, decays and structure of light mesons with HADES

Speaker: Izabela Ciepał (Institute of Nuclear Physics PAS, Kraków)

iciepal_ECT_june2023.pdf

10:10 Meson Decay Studies at EIC

Speaker: Dr Alessandro Pilloni (Jefferson Lab)

meson-decays.pptx

10:45 → 11:15 coffee break

11:15 → 12:25 Rare Decays

11:15 Probing Low-Energy QCD, Fundamental Symmetry and BSM Physics via π0, η and η'

Speaker: Emilie Passemar (Indiana University/IFIC Valencia)

EPassemar_Trento.pdf

11:50 Light meson decays at KLOE/KLOE-2

Speaker: Simona Giovannella (INFN Frascati)

ECT2023.pdf

12:30 → 14:00 Lunch

14:00 → 15:40 Rare Decays

14:00 Meson Decay Studies from the A2 Collaboration

Speaker: Edoardo Mornacchi (University of Mainz)

Mornacchi_ECTs.pdf

14:35 eta/eta' decays into ALP

Speaker: Sergi Gonzalez-Solis (Los Alamos National Laboratory)

Trento_Sergi_talk1.pdf

15:10 The rare decay eta -> pi0 gamma gamma in a dispersive approach

Speaker: Bachir Moussallam (Universite Paris-Saclay,IJCLab)

etapi2gam-trento.pdf

15:45 → 16:15 coffee break

16:15 → 16:55 Rare Decays

16:15 The semileptonic decays η(′) → π0ℓ+ℓ− and η′ → ηℓ+ℓ− in the standard model

Speaker: Hannah Schäfer (Bonn University)

Schaefer_ECTStar.pdf

17:00 → 17:30 Discussion

Wednesday 14 June

09:00 → 10:45 Transition Form Factors

09:00 Transition form factors

Speaker: Andrzej Kupsc (Uppsala University)

kupsc2306TrentoTFFa.pdf

09:35 Connection with g-2

Speaker: Martin Hoferichter (University of Bern)

Talk_hoferichter.pdf

10:10 News from g-2 Fermilab

Speaker: Saskia Charity (University of Liverpool)

SaskiaCharity_g-2_Trento.pptx

10:45 → 11:15 coffee break

11:15 → 12:25 Transition Form Factors

11:15 Measurement of the Charged Pion Form Factor to High Q2

Speaker: Garth Huber (University of Regina)

fpi_trento_23jun.pdf

11:50 EM form factors of eta and etaprime mesons at BESIII

Speaker: Shuangshi Fang (Institute of High Energy Physics, CAS)

BESIII-TFF-fss-v3.pdf

12:30 → 14:00 Lunch

14:00 → 15:45 Transition Form Factors

14:00 Calculations of the light-pseudoscalar (pi0, eta, eta') transition form factors

Speaker: Antoine Gérardin (CPT Marseille)

ECT_gerardin.pdf

14:35 eta and eta' TFFs

Speaker: Simon Holz (University of Bern)

simon_holz_eta_etaP_TFFs.pdf

15:10 Radiative corrections for Dalitz decays

Speaker: Tomas Husek (Lund University)

Husek_ECT.pdf

15:45 → 16:15 coffee break

16:15 → 17:25 Transition Form Factors

16:15 Measurement of the neutral pion transition form factor in the space-like region

Speaker: Rory Miskimen (University of Massachusetts, Amherst USA)

Miskimen.pdf

16:50 Measurement of 𝜋0 Transition Form Factor via the Primakoff Effect at MAMI

Speaker: Luigi Capozza (Helmholtz Institute Mainz)

capozza-etc2023.pdf

17:30 → 18:00 Discussion

Thursday 15 June

09:00 → 10:45 Beyond the Standard Model

09:00 Perspectives on C and CP violation (and more) in η decay

Speaker: Susan Gardner (University of Kentucky)

svg_cpv_eta+bsm_trento_15jun23.pdf

09:35 C- and CP-violation in eta decays

Speaker: Hakan Akdag (Uni Bonn)

ECT_talk_Akdag.pdf

10:10 CP-violation in eta decays

Speaker: Pablo Sanchez Puertas (University of Granada)

PabloECT.pdf

10:45 → 11:15 coffee break

11:15 → 12:25 Beyond the Standard Model

11:15 Lepton-flavor violation in eta decays

Speaker: Frederic Noël (ITP, AEC, Uni Bern)

Noel_ECTStar2023.pdf

11:50 Search for new particles at JEF & JLAB@22GeV

Speaker: Igal Jaegle (Jefferson Lab, United States)

ect-star-igal-jaegle-15062023.pdf

12:30 → 14:00 lunch

14:00 → 15:45 Beyond the Standard Model

14:00 Searching for light dark particles in eta and etaprime decays

Speaker: Sean Tulin (York University)

ETCstar23_Tulin.pdf

14:35 eta(') --> pi0 l+l- and eta' --> eta l+l- decays: SM prediction and imprints of CP violation

Speaker: Pablo Sanchez Puertas (University of Granada)

QNP2022_Royo.pdf

15:10 Sensitivity of the $\eta^{(\prime) }\to \pi^{0} \gamma \gamma$ and $\eta^{\prime} \to \eta \gamma \gamma$ decays to a sub-GeV leptophobic $U(1)_{B}$ boson

Speaker: Sergi Gonzalez-Solis (Los Alamos National Laboratory)

Trento23_Sergi_talk2.pdf

15:45 → 16:15 coffee break

16:15 → 17:25 Beyond the Standard Model

16:15 Testing BSM scenarios in low-energy systems

Speaker: Andreas Crivellin (UZH & PSI)

Trento2023.pptx

16:50 pi0 TFF, pi0 --> e+e-

Speaker: Bai-Long Hoid (University of Bern)

Trento_Hoid.pdf

17:30 → 18:00 Discussion

20:00 → 22:00 DINNER RESTAURANT ANTICO POZZO TRENTO

Friday 16 June

09:00 → 10:10 Experiments and Primakoff

09:00 Overview of recent and upcoming experiments using meson decays to probe low-energy QCD, fundamental symmetries and BSM physics

Speaker: Simon Taylor (Jefferson Lab)

taylor_ectstar23.pdf

09:35 The Primakoff Experimental Program at Jefferson Lab

Speaker: Liping Gan (University of North Carolina Wilmington)

Gan-Primakoff-hadron-Trento.pptx

10:10 → 10:40 coffee break

10:40 → 11:15 Experiments and Primakoff

10:40 Overview and Outlook on the theoretical calculations of the pi^0 radiative decay width

Speaker: Karol Kampf (Charles University)

kampf_ect.pdf

11:15 → 11:45 Discussion

11:45 → 12:20 Outlook

11:45 Outlook on precision tests of fundamental physics with light mesons

Speaker: Ashot Gasparian (NC A and T State University, NC, USA)

Gasparian_Test_of_Fund_Trento_June_2023.pdf

12:30 → 14:00 lunch & good-bye