| Monday 23 December 2024 | |
| Events for day: Monday 26 August 2024 |
| 11:00 - 12:00 Journal Club: Experiment & Phenomenology – Hybrid Format The Two-Nucleon 1S0 Amplitude Zero in Chiral Effective Field Theory School PARTICLES AND ACCELERATORS Abstract: Recently, a new rearrangement of short-range interactions has been suggested in the 1S0 nucleon-nucleon channel within Chiral Effective Field Theory. This is intended to reproduce the amplitude zero at leading order, and it includes subleading corrections perturbatively in a way that is consistent with renormalization-group invariance. Systematic improvement is shown at next-to-leading order, the obtained results have been fitted empirical phase shifts remarkably well all the way up to the pion-production threshold. An approach in which pions have been integrated out is included, which allows us to present analytic r ... |