LGRT 419B
Tests of the unitarity constraint on the first row of the CKM matrix continue to provide powerful probe of physics beyond the Standard Model. The effectiveness of this probe relies on having sufficiently precise measurements and theoretical, Standard Model computations. This workshop will address the following questions: What is the status of the first-row CKM unitarity constraint? What is the status of radiative and nuclear/hadronic structure-dependent corrections that underly that test? A particular focus will be on arriving at a clear picture of the present level of theoretical uncertainty in extracting the value of V_ud from experiment and on strategies to reduce it. An additional emphasis will fall on obtaining a consensus for present determination of V_us. We will gather the world experts for providing a complete and in-depth review of all crucial theoretical and experimental ingredients.
Co-organizers:
Mikhail Gorshteyn (Mainz University)
John Hardy (Texas A&M University)
Michael Ramsey-Musolf (UMass Amherst & Tsung-Dao Lee Institute, Shanghai Jiao-Tong University)
Chien Yeah Seng (Bonn University)
Schedule
9:00am |
9:15am |
10:00am |
10:30am |
Precise Vud from Superallowed Nuclear Decays - Nuclear Structure
John Hardy Texas A&M University hardy_amherst_workshop_talk.pdf |
11:15am |
Nuclear Corrections from the EFT Perspective
Saori Pastore Washington University - St. Louis Pastore CKM 19 |
12:00pm |
ΔRV and δNS from the Dispersion Relation Perspective
Misha Gorshteyn Mainz University gamma-w_box_acfi_may16-18.pdf |
12:45pm |
2:00pm |
Discussion: Status of Nuclear Structure Effects in Vud
Michael Ramsey-Musolf and all U Mass Amherst CKM Nuclear Structure |
3:30pm |
4:00pm |
Vud from Neutron Beta Decay – Presence & Prospects
Bastian Märkisch Technical University of Munich markisch_-_amherst_-_ckm_-_2.pdf |
4:45pm |
6:30pm |
9:00am |
9:30am |
γW-box on a Free Neutron via Dispersion Relations and on the Lattice
Chien-Yeah Seng Bonn University 2019_acfi_talk.pdf |
10:00am |
10:30am |
11:00am |
12:15pm |
2:00pm |
Kaon Form Factor and Decay Constant From the Lattice
Aida El-Khadra University of Illinois El Khadra CKM 19 |
2:45pm |
Radiative Corrections and Strong Isospin-Breaking in Kaon Decays on the Lattice
Davide Giusti Università Roma Tre and INFN giusti_umass19.pdf |
3:30pm |
4:00pm |
4:45pm |
9:30am |
12:00pm |