14th International Conference on Hypernuclear and Strange Particle Physics - HYP2022

Session

3; Wed-I

29 Jun 2022, 08:30

Prague, Czech Republic

Conveners

3; Wed-I

• Wolfram Weise (Technical University of Munich)

127. Status of the hyperon-nucleon interaction in chiral effective field theory

Johann Haidenbauer (Forschungszentrum Juelich GmbH)

29/06/2022, 08:30

online talk

The Julich-Bonn-Munich Group aims at an extensive study of the baryon-baryon (BB) interaction involving strange baryons ($\Lambda$, $\Sigma$, $\Xi$) within SU(3) chiral effective field theory. An overview of achievements and new developments over the past few years will be provided. Among the issues covered are:
$\bullet$ Derivation of the leading charge-symmetry breaking (CSB) interaction in...

77. Single- and double-strangeness hypernuclei up to A=7 within chiral EFT

Hoai Le (Forschungszentrum Juelich)

29/06/2022, 08:55

talk

We investigate $S=-1$ and $-2$ hypernuclei with $A=4-7$ employing the Jacobi-NCSM approach [1] and in combination with baryon-baryon (BB) interactions derived within the frame work of chiral effective field theory. The employed BB interactions are softened using the so-called similarity renormalization group (SRG) [2] in order to speed up the convergence. Such a SRG evolution is only...

118. Study on hadron-hadron interaction with femtoscopic technique

Yuki Kamiya (Bonn University )

29/06/2022, 09:20

talk

The two-particle momentum correlation function from high-energy nuclear collisions is beginning to be used to study hadron-hadron interaction. In this talk, we discuss how the hadron-hadron interaction can be determined from the correlation function data. Based on the theoretical and experimental studies in strangeness sectors, we review the importance of the coupled-channel effect and the...

32. Baryonic EFT for Light Hypernuclei

Nir Barnea (Racah Institute of Physics, The Hebrew University)

29/06/2022, 09:45

talk

Light hypernuclei containing one or two $\Lambda$ baryons is the subject of an ongoing experimental campaign aiming to study the spectrum of these systems, as well as the 2 and 3-body interaction between $\Lambda$ hyperons and nucleons.
In this presentation we review the theoretical study of these systems within the framework of Baryonic Effective Field Theory (BEFT). Constrained to...

17. Commissioning of the hypertriton binding energy measurement at MAMI

Philipp Eckert (JGU Mainz)

29/06/2022, 10:10

talk

A new experiment is prepared at the Mainz Microtron facility to determine the hypertriton Lambda binding energy via decay pion spectroscopy, which was successfully pioneered with hydrogen-4-$\Lambda$ in the last decade. The experiment makes use of a novel high luminosity lithium target with a length of 50$\,$mm while being only 0.75$\,$mm thick to keep momentum smearing of the decay pions low....