Oton Vazquez Doce
(T)
18/08/2019, 14:00
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Leading parallel
Our experimental knowledge on hadron-hadron interactions is based mostly on scattering data and, in the case of systems with strangeness, the characterization of hypernuclei. The femtoscopy technique, by measuring the correlations between particle pairs with low relative momentum, has been used to measure the size of the QGP fireball created in relativistic heavy-ion collisions. Now we show...
Johann Zmeskal
(Stefan Meyer Institute for Subatomic Physics)
18/08/2019, 14:25
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
Studies with kaonic atoms offer the unique opportunity to perform experiments at vanishing relative energies between the antikaon and the nucleon, because their atomic binding energies are in the keV range, far below the lowest energies of extracted beams for scattering experiments. Of particular interest are kaonic hydrogen atoms, because they offer an ideal framework to study...
Domenico Colella
(INFN-Bari)
18/08/2019, 14:45
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
Studies of light hadron and nuclei production are fundamental to characterise the hot and dense fireball created in ultra-relativistic heavy ion collisions and to investigate hadronisation mechanisms at the LHC. Studies performed as a function of the charged particle multiplicity in proton-proton and proton-lead collisions have shown features not expected and qualitatively similar to what is...
Yuki Kamiya
(Institute of Theoretical Physics)
18/08/2019, 15:05
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
We discuss the $\bar{K}N$ correlation in high-energy nuclear collisions and its relation to the $\bar{K}N$ interaction. Given the source function, the hadron-hadron correlation can be useful to investigate the interaction. Recently, it has been shown by the ALICE collaboration that the effect of the threshold difference due to the isospin symmetry breaking is important for more detailed...
Steffen Maurus
(TUM)
18/08/2019, 15:25
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The precision measurement of two solar mass neutron stars (NS) and recent observation of the neutron star merger give stringent constraints to the equation of states (EOS) of models describing such dense objects.
While the allowed phase space is reduced by all these experimental observations, the hyperon puzzle, that question the presence of hyperons within NS, is still unresolved.
For...
Prof.
Masayasu Harada
(Nagoya University)
18/08/2019, 16:15
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Leading parallel
I will summarize our recent works on the study of nuclear matter based on a chiral model with parity doublet structure.
In our model, we construct a chiral model including four light nucleons, N(939), N(1440), N(1535) and N(1650) based on the parity doublet structure.
We first determine the model parameters by fitting them to available experimental values of masses, widths and the axial...
Dr
Daiki Suenaga
(Central China Normal University)
18/08/2019, 16:40
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
Mass modifications of light scalar, pseudo-scalar, vector, and axial-vector mesons in nuclear matter are studied comprehensively. The mesons are described by the extended Linear Sigma Model which can reproduce vacuum properties such as masses and decay widths, and the nuclear matter is constructed by the two-flavor Parity Doublet Model which can fit the saturation density, binding energy, and...
Mr
Sheng-Tai Li
(CCNU)
18/08/2019, 17:00
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The chiral phase transition temperature $T_{c}^{0}$ is a fundamental quantity of QCD. To determine this quantity we have performed simulations of (2 + 1)-flavor QCD using the Highly Improved Staggered Quarks (HISQ/tree) action on $N_{\tau}=6, 8$ and 12 lattices with aspect ratios $N_{\sigma}/N_{\tau}$ ranging from 4 to 8.
In our simulations the strange quark mass is fixed to its physical...
Jaroslava Hrtankova
(N)
18/08/2019, 17:20
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
We report on our recent study of systems composed solely of $\Lambda(1405)$ (denoted by $\Lambda^*$) baryons [1] in which we test a hypothesis of absolutely stable strange hadronic matter [2]. We employed a broad range of $\Lambda^* \Lambda^*$ interaction strengths compatible with binding energy of 2 $\Lambda^*$ system $B(2 \Lambda^*)=40$ MeV given by the phenomenological energy-independent...
Prof.
Liguang Tang
(Hampton University / JLab)
20/08/2019, 16:15
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Leading parallel
The newly completed JLab experiment E12-17-003 aimed to search for a possible Λnn resonance using the 3H(e, e’K+)(Λnn) reaction. If such a state does exist, the experiment will measure its binding (or excitation) energy and natural width. These measurements will provide extremely important and experimentally determined information, for the first time, that can be used to investigate the...
bingran he
(Nanjing Normal University)
20/08/2019, 16:40
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The properties of nucleons and $\Delta$ isobars in a uniform magnetic field are investigated. In the weak magnetic field region, the general relations between magnetic moment of nucleons and $\Delta$ isobars are given.
The estimation shows in the core part of the magnetar, the equation of state fornucleons and $\Delta$ isobars depends on the magnetic field, which affects the mass limit of...
Dr
Masayasu Hasegawa
(Joint Institute for Nuclear Research)
20/08/2019, 17:00
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The existence of monopoles has been theoretically predicted since P. A. M. Dirac introduced the magnetic monopole in quantum mechanics. Moreover, a large number of experiments to observe monopoles have been conducted. Recently, in the field of condensed matter physics, a research group has reported that they created magnetic monopoles in the Bose-Einstein condensate and observed it in the...
Dr
Alfredo Vega
(Universidad de Valparaiso)
20/08/2019, 17:20
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
Although from the gravitational point of view, the metric and the dilaton field define the background, in AdS/QCD models medium effects usually are catched only in metric. Here we discuss two examples where dilatons depending on temperature and/or density can be useful to study hadron properties at finite temperature and / or in a dense medium with AdS / QCD models.
Mr
Xiaojun Yao
(Duke University)
21/08/2019, 08:30
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Leading parallel
The production of heavy quarkonium in heavy ion collisions has been used as an important probe of the quark-gluon plasma. The initial insight was that due to the plasma screening effect, the color attraction between the heavy quark pair is significantly suppressed at high temperature and thus no bound states can exist, i.e., they “melt”. However, experimental measurements have shown that a...
Prof.
Zhenwei Yang
(Tsinghua University)
21/08/2019, 08:55
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
LHCb results on quarkonia production in proton-lead collisions, using the data collected in 2016 at 8.16 TeV nucleon-nucleon centre-of-mass energy, in the forward region (pseudorapidity between 2 and 5) are presented, covering forward (pPb configuration) and backward (Pbp configuration) rapidities. Measurements include charmonia, where the prompt and from-b-decay components are disentangled,...
Dr
Jiayin Sun
(Tsinghua University)
21/08/2019, 09:15
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
A rich set of open heavy flavour states is observed by LHCb in pPb collisions collected at 5 and 8.16 TeV nucleon-nucleon center-of-mass energies. Thanks to the LHCb forward acceptance that is complementary to general purpose detectors, heavy-flavor hadrons can be studied down to zero pT. Presented in this talk is the measurements of production of beauty hadrons and open charm states...
Joana Wirth
(T)
21/08/2019, 09:35
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The modification of hadron properties in the strongly interacting environment resulting from heavy ion collisions (HIC) has been extensively studied for decades. However, in such highly dynamic processes it is difficult to address fundamental aspects. In fact, in-medium effects, which are expected to be present already at normal nuclear matter ($\rho_0$), can be studied in hadron-nucleus...
Dr
Junya Yoshida
(Japan Atomic Energy Agency, for the J-PARC E07 Collaboration)
21/08/2019, 10:45
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Leading parallel
Double Λ hypernuclei and Ξ hypernuclei, collectively called “double hypernuclei”, have come to play important roles in hadron nuclear physics as valuable information sources of baryon-baryon interaction. The most effective method to investigate them is event-by-event analysis with photographic emulsion sheets. An emulsion experiment to detect double hypernuclei has been performed in the J-PARC...
Dr
Jinhui Chen
(Fudan University)
21/08/2019, 11:10
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
I will represent selected results on hadron production in heavy-ion collisions at RHIC-STAR. I will focus on the hyper nuclear data and also discuss a little bit of the future plan.
Ms
Thiri Yadanar Htun
(School of Physics, Suranaree University of Technology, Thailand)
21/08/2019, 11:30
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
We perform the Hypernuclear No-Core Shell Model (NCSM) calculations to study the uncertainty of hypertriton binding energy. In particular, we employ a family of nucleon-nucleon (NN) nuclear interactions at next-to-next-to-leading-order (NNLO) in chiral effective field theory to approximate the uncertainty of the nuclear interaction in combination with a fixed leading-order (LO) chiral...
Dr
Philipp Gubler
(JAEA)
21/08/2019, 11:50
Session 7: Hadrons in hot and nuclear environment including hypernuclei
Parallel
The behavior of the $\phi$ meson in nuclear matter has attracted renewed interest because
of (recent and future) experiments that aim to study its properties in nuclei [1-3]. Theoretically,
many works have however been conducted assuming infinite nuclear matter [4-5], which is
not realistic from an experimental point of view. To relate theoretical predictions with experimental...
