3 papers
hep-ex2026
Observation of in the Amplitude Analysis of
BESIII Collaboration, M. Ablikim, M. N. Achasov +716
We report the first observation of the decay in a data set corresponding to an integrated luminosity of 7.33 fb, collected in collisions…
hep-ex2026
Search for a massless particle beyond the Standard Model in the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +770
A search for a massless beyond-standard-model particle is performed in the decay using events collected with…
hep-ph2025
Positivity in the Renormalization of Effective Field Theory
You-Peng Liao, Jasper Roosmale Nepveu, Chia-Hsien Shen
We show that the direction of renormalization in effective field theory is constrained by fundamental principles in the infrared$\unicode{x2014}$unitarity, analyticity, and Lorentz…