7-12 June 2018
Auditorium Maximum
Europe/Warsaw timezone
15th International Workshop on Meson Production, Properties and Interaction
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Plenary Session

Place

Location: Auditorium Maximum
Date: from 7 Jun 09:00 to 12 Jun 14:00

Conveners

  • 7 Jun 09:00 - 11:00
    • Stroeher, Hans (Forschungszentrum Juelich)
  • 7 Jun 11:30 - 13:30 Plenary Session
    • Krusche, Bernd (University of Basel)
  • 8 Jun 09:00 - 11:00 Plenary Session
    • Ritman, James (Forschungszentrum Juelich GmbH)
  • 8 Jun 11:30 - 13:30 Plenary Session
    • Guaraldo, Carlo (Istituto Nazionale Fisica Nucleare (INFN) Laboratori Nazionali di Frascati (LNF))
  • 9 Jun 09:00 - 11:00 Plenary Session
    • Szczurek, Antoni (Institute of Nuclear Physics PAN, Krakow and Rzeszow University, Rzeszow)
  • 9 Jun 11:30 - 13:30 Plenary Session
    • Oset, Eulogio (University of Valencia)
  • 11 Jun 09:00 - 11:00 Plenary Session
    • Gal, Avraham (Hebrew University, Jerusalem, ISRAEL)
  • 11 Jun 11:30 - 13:30 Plenary Session
    • Briscoe, William (The George Washington Unoversity)
  • 12 Jun 09:00 - 11:00 Plenary Session
    • Zou, Bingsong (Institute of Theoretical Physics, CAS)
  • 12 Jun 11:30 - 14:00 Plenary Session
    • Szczepaniak, Adam (Indiana University/ JLab)

Timetable | Contribution List

Displaying 40 contributions out of 40
Type: plenary talk Session: Plenary Session
The study of $\eta$ mesons has been one of the main objectives of the WASA experiment, ever since its relocation to the accelerator complex COSY at the Research Center Jülich. As the interaction of $\eta$ mesons with nucleons is attractive in s-wave, with the $S_{11}(1535)$ resonance situated close to the $\eta N$ threshold, studying the properties of $\eta N$ and $\eta A$ interactions has lon ... More
Presented by Nils HÜSKEN on 8/6/2018 at 9:30
Type: plenary talk Session: Plenary Session
Hadron Spectroscopy experienced a renaissance over the last decade in both meson and baryon sectors, initially triggered by the discovery of the enigmatic $X,\ Y,\ Z$ states. The discussion on unconventional quark-gluon compositions to understand their internal structure is in meanwhile expanded to other baryonic states in the charm sector, e.g. the pentaquark candidates observed at LHCb. Old pro ... More
Presented by Hartmut SCHMIEDEN on 11/6/2018 at 11:00
Type: plenary talk Session: Plenary Session
Within the broad physics programme of the COMPASS collaboration at CERN SPS, soft reactions of high-energy hadron beams on different nuclear targets are investigated. Aiming at a better understanding of the strong interaction, novel results range from tests of chiral symmetry breaking to properties of diffractively produced meson resonances studied in their multi-particle decays, such as the $a_1( ... More
Presented by Jan FRIEDRICH on 11/6/2018 at 10:30
Type: plenary talk Session: Plenary Session
LHCb is an ideal detector for the investigation of central exclusive production (CEP), as it is fully instrumented between pseudorapidities of 2 and 5, operates in low pile-up conditions and has special low-multiplicity triggers for muons and hadrons. In 2015, a new sub-detector, HeRSCheL, consisting of five planes of scintillators was installed on both sides of LHCb in the LHC tunnel in order ... More
Presented by Ronan MCNULTY on 12/6/2018 at 10:00
Type: plenary talk Session: Plenary Session
We report the measurement of light- and heavy-flavor hadron production in central ($|\eta|< 0.9$) and forward ($-4.0<\eta<-2.5$) rapidities in pp ($\sqrt{s}=2.76~{\rm TeV}$, $5.02~{\rm TeV}$ and $7~{\rm TeV}$), p-Pb ($\sqrt{s_{\rm NN}}=5.02~{\rm TeV}$), Xe-Xe ($\sqrt{s_{\mathrm NN}} = 5.44~{\rm TeV}$) and Pb-Pb ($\sqrt{s_{\mathrm NN}} = 2.76~{\rm TeV}$ and $5.02~{\rm TeV}$) collisions with ALICE ... More
Presented by Jacek OTWINOWSKI on 9/6/2018 at 8:00
Type: plenary talk Session: Plenary Session
The isobar model EtaMAID has been updated with new high precision data on proton and neutron from MAMI, ELSA, GRAAL and CLAS. The background is described in a recently developed Regge-cut model. The resonance sector receives contributions from up to 21 N* resonances, up to 12 show also decays into the etaprime channel. A new method is discussed to avoid double counting in the overlap region of Reg ... More
Presented by Lothar TIATOR on 12/6/2018 at 7:30
Type: plenary talk Session: Plenary Session
DIRAC is an experiment which aims to study double-exotic atoms formed by $\pi$- and $K$-mesons to check the QCD predictions. DIRAC is a fixed target experiment which uses the proton beam, extracted from the CERN Proton Synchrotron at 24 GeV/c. Exotic hydrogen-like atoms are generated in relativistic proton-nuclei collisions and later identified through characteristic ("atomic'') pairs of ... More
Presented by Mikhail ZHABITSKY on 8/6/2018 at 7:30
Type: plenary talk Session: Plenary Session
With about 12 fb$^{-1}$ collected, useful data set for $XYZ$ new resonances, BESIII continues the exploration of these exotic charmonium-like states. In these talk, recent results of the measurements of the line-shape of $e^+ e^- \to$  (3686), $K^+ K^-$ J/, and  $D^0 D^{\ast -}$, as well as the $J^P$ determination of $Z_c(3900)$ and $Z_c(3900)$ observation in $e^+ e^- ... More
Presented by Riccardo FARINELLI on 7/6/2018 at 8:30
Type: plenary talk Session: Plenary Session
TBA
Presented by Paolo GIUBELLINO on 7/6/2018 at 10:00
Type: plenary talk Session: Plenary Session
Since the discovery of the $J/\Psi$ the quark model was very successful describing the spectrum and properties of heavy mesons including only $q\bar q$ components. However since 2003, with the discovery of the $X(3872)$, many states that can not be accommodated on the naive quark model have been discovered, and they made unavoidable to include higher Fock components on the heavy meson states. We w ... More
Presented by David RODRIGUEZ ENTEM on 9/6/2018 at 10:00
Type: plenary talk Session: Plenary Session
The exploration of QCD phase diagram and study of the dynamics and mechanism of particle production in heavy-ion collisions is one of the current research interest in the field of high energy physics. In addition, the search for the QCD critical point in the phase diagram has been the main motivation to carry out the Beam Energy Scan program at the Relativistic Heavy Ion Collider (RHIC) facility a ... More
Presented by Hanna ZBROSZCZYK on 9/6/2018 at 8:30
Type: plenary talk Session: Plenary Session
The GlueX experiment is housed in the newest experimental hall at the Thomas Jefferson National Accelerator facility in Newport News, Virginia. It was successfully commissioned in 2015 and is in its third year of data taking. GlueX uses a 12 GeV electron beam incident on a diamond radiator, producing a linearly polarized, coherent Bremsstrahlung photon beam. The ultimate goal of GlueX is to searc ... More
Presented by Thomas BRITTON on 8/6/2018 at 8:00
Type: plenary talk Session: Plenary Session
The BESIII experiment at the electron positron collider BEPCII in Beijing is successfully operating since 2008 and has collected large data samples in the $\tau$-mass region, including the world’s largest data samples at the $J/\psi$ and $\psi'$ resonances. In particular decays of these two resonances provide a rich and clean environment to study hadrons consisting out of light quarks and search ... More
Presented by Wencheng YAN on 12/6/2018 at 11:00
Type: plenary talk Session: Plenary Session
The AMADEUS collaboration is performing experimental investigations in the low energy strangeness QCD sector. The K− nuclear absorbtion processes on light nuclear targets are studied, taking advantage of the monochromatic low-momentum negatively charged kaons produced by the DAFNE collider and exploiting the KLOE detector as an active target. The K− single and multi-nuclear absorptions on H ... More
Presented by Kristian PISCICCHIA on 11/6/2018 at 7:30
Type: plenary talk Session: Plenary Session
The A2 Collaboration has endeavored to improve the understanding of the structure of mesons and nucleons by studying the photoproduction of the former off of the latter. These studies were performed in the A2 hall at the Mainz Microtron (MAMI), where tagged photons, unpolarized or either linearly or circularly polarized, up to energies of 1.6 GeV impinge upon proton or deuteron targets, also eithe ... More
Presented by Philippe MARTEL on 12/6/2018 at 8:30
Type: plenary talk Session: Plenary Session
The mission of the Joint Physics Analysis Center (JPAC) is to provide theoretical support for analysis and interpretation of data from hadron physics experiments, with primary focus on the operations at JLab12. In this talk I will give an overview of the projects and present results of a few key analysis carried out recently at JPAC.
Presented by Adam SZCZEPANIAK on 11/6/2018 at 9:30
Type: plenary talk Session: Plenary Session
In the talk, I will overview the recent progress in Lattice QCD techniques related to different aspects of meson physics. In particular, I will present calculations of the mass spectrum, decay constants, pion form factors, moments of meson distribution amplitudes as well as results from a direct evaluation of meson distribution amplitudes and eventually results for $\eta/\eta'$ masses and decay co ... More
Presented by Piotr KORCYL on 9/6/2018 at 9:30
Session: Plenary Session
on 7/6/2018 at 7:00
Type: plenary talk Session: Plenary Session
Outlook
Presented by Laura FABBIETTI on 12/6/2018 at 11:30
Type: plenary talk Session: Plenary Session
Less than a decade after the first observation of X-rays from kaonic atoms, strong interaction level shifts and widths were measured directly, in addition to transition yields that indirectly provide informaion on level widths. Experiments between the mid-1970s and mid-1980s provided good quality data for 24 nuclear species from Li to U, that serve up to now as the data-base fo ... More
Presented by Eliahu FRIEDMAN on 11/6/2018 at 7:00
Type: plenary talk Session: Plenary Session
We show that the $\Phi$-derivable formulation of the cluster virial expansion for quark–hadron matter contains the quark Pauli blocking effect in the lowest order expansion with respect to the backreaction of hadrons on the quark dynamics. We discuss two examples for the application of the approach. First the quark Pauli blocking in the pion gas is shown to explain the repulsive $I=2$ phase s ... More
Presented by David BLASCHKE on 7/6/2018 at 10:30
Type: plenary talk Session: Plenary Session
In 2015 LHCb reported the discovery of two pentaquark resonances in the decay of lambda b baryons. Various interpretations into the nature of these pentaquarks predict that they are in fact part of a larger multiplet of exotic states. Searches for these states, as well as further exotic hadrons that do not conform to the established quark-anti-quark meson and three-quark baryon model are a main fo ... More
Presented by Nicola SKIDMORE on 7/6/2018 at 8:00
Type: plenary talk Session: Plenary Session
A secondary beam of neutral kaons has been proposed for Hall D at Jefferson Lab; this beam line is to be used with the GlueX experimental setup for strange hadron spectroscopy. A flux on the order of $3\times10^4\ K_L$/s will allow a broad range of measurements to be made by improving the statistics of previous data obtained on hydrogen targets by three orders of magnitude. Use of a deuteron targe ... More
Presented by William BRISCOE on 7/6/2018 at 9:30
Type: plenary talk Session: Plenary Session
Since pions are the lowest-mass messengers of subnucleonic degrees of freedom, the production of one or more pions in nucleon-nucleon collision processes is outstandingly suited to search for resonances in the two-baryon system. Already in the fifties, first experiments on single-pion production found first indications for a resonance near the $\Delta N$ threshold. But it took until the begin ... More
Presented by Tatiana SKORODKO on 11/6/2018 at 8:00
Session: Plenary Session
Oral, 2-minute presentations of posters, which will be exhibited in the poster session in the afternoon.
on 9/6/2018 at 10:30
Type: plenary talk Session: Plenary Session
85 years after the first hadronic molecule, the deuteron, was discovered, now we have a few candidates for its analogies. I will review some recent progress in this field.
Presented by Bing-Song ZOU on 12/6/2018 at 10:30
Type: plenary talk Session: Plenary Session
Recently there has been much interest in the pair production of quarkonia (charmonia, bottomonia). There are two main motivations behind these studies: first, these processes may help to differentiate between different proposed production mechanisms via color-octet and color-singlet $Q\bar Q$-pair production. Second, the production of quarkonium pairs is expected to receive an important ... More
Presented by Wolfgang SCHAEFER on 12/6/2018 at 9:30
Type: plenary talk Session: Plenary Session
Two high-energy photon beamlines, LEPS and LEPS2, have been operated at SPring-8. In both beamlines, linearly polarized photon beams up to 2.9 GeV produced by laser-induced backward Compton scattering from 8 GeV electrons have been used to study quark-nuclear physics via the photoproduction of hadrons. The LEPS experiments have been carried out mainly using the forward charged-particle spectromete ... More
Presented by Masaru YOSOI on 12/6/2018 at 8:00
Type: plenary talk Session: Plenary Session
Recent calculations of the pion-nucleon scattering in covariant baryon chiral perturbation theory with explicit $\Delta$ resonances will be presented. Two-loop results of the widths of the $\Delta$- and Roper resonances will be discussed in the framework of an effective field theory with nucleons, pions and the Roper and $\Delta$ resonances as dynamical degrees of freedom.
Presented by Jambul GEGELIA on 8/6/2018 at 8:30
Type: plenary talk Session: Plenary Session
The decay $K^{+} \to \pi^{+} \nu \nu$, with a very precisely predicted branching ratio of less than $10^{-10}$, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at CERN SPS is designed to measure the branching ratio of the $K^{+} \to p+ nn$ with a decay-in-flight technique, novel for this channel. NA62 took data in 2016, 2017 a ... More
Presented by Nicolas LURKIN on 8/6/2018 at 10:00
Type: plenary talk Session: Plenary Session
The possible existence of strongly-bound $\bar K$ nuclear-states has been widely discussed as a consequence of the strongly attractive $\bar K N$ interaction in I = 0 channels. Experimentally, however, available information is not sufficient to discriminate between a variety of conflicting interpretations so far. To break through this situation, we have performed an experimental search for t ... More
Presented by Fuminori SAKUMA on 11/6/2018 at 8:30
Type: plenary talk Session: Plenary Session
The possible existence of η-mesic nuclei where the η meson is bound with nucleus via the strong interaction, initially postulated by Haider and Liu [1] over thirty years ago, is intensively debated by the scientific community. Some theories predict that ηN interaction is strong enough to form bound states even for the light nuclei like helium, however there are still no model independent calcul ... More
Presented by Magdalena SKURZOK on 12/6/2018 at 7:00
Type: plenary talk Session: Plenary Session
One of the most striking phenomenon of QCD is the formation of the nucleon out of massless gluons and almost massless quarks. This system of confined quarks and gluons serves as the basic constituent of ordinary baryonic matter and exhibits the characteristic spectra of excited states, which are sensitive to the details of quark confinement. Complementary to nucleon structure studies, nucleon exci ... More
Presented by Volker CREDE on 11/6/2018 at 10:00
Type: plenary talk Session: Plenary Session
We give a review of selected results on meson studies at Belle. Mechanisms of meson production are presented for conventional light and heavy mesons as well as for so called XYZ states. Examples of new states discovered at Belle are given. Also discussed are expectations for future experiments at Belle II.
Presented by Simon EIDELMAN on 7/6/2018 at 7:30
Type: plenary talk Session: Plenary Session
The interaction between hadrons has sometimes the consequence that bound states and resonances are formed, involving four quarks for mesons and five quarks for baryons, although they cluster in the form of more elementary mesons and baryons. I select two examples: the $D^\ast \bar D^\ast$, $D^\ast_{s} \bar D^\ast_{s}$ interaction leading to some $XYZ$ states in the region of 4000 MeV and the inter ... More
Presented by Eulogio OSET on 8/6/2018 at 7:00
Type: plenary talk Session: Plenary Session
The CLAS12 experiment in Hall B at Jefferson Lab aims at investigating the hadron structure and spectrum by making use of the 12 GeV electron beam provided by the CEBAF accelerator. The CLAS12 physics program includes the study of the 3D structure of the nucleon, the study of the baryon and meson spectrum and structure, the search for exotic states and the study of quark hadronization and nuclear ... More
Presented by Lei GUO on 7/6/2018 at 11:00
Type: plenary talk Session: Plenary Session
The muon anomaly $a_\mu=(g_\mu-2)/2$ showing a persisting 3 to 4 $\sigma$ deviation between the SM prediction and the experiment is one of the most promising signals for physics beyond the SM. As is well known, the hadronic uncertainties are limiting the accuracy of the Standard Model prediction. Therefore a big effort is going on to improve the evaluations of hadronic effects in order to keep u ... More
Presented by Fred JEGERLEHNER on 9/6/2018 at 7:30
Type: plenary talk Session: Plenary Session
The analysis methods for the meson pion-induced and photo-production methods are discussed. The resent results from the Bonn-Gatchina group are presented and compared with the results of other partial wave analysis groups.
Presented by Andrey SARANTSEV on 8/6/2018 at 11:00
Type: plenary talk Session: Plenary Session
Dilepton radiation from the exploding fireballs formed in energetic collisions of heavy nuclei provides a unique opportunity to investigate medium modifications of the light vector mesons. We discuss theoretical calculations of in-medium spectral functions and how they can help to interpret the experimentally measured dilepton spectra in heavy-ion collisions over a large range of energies, providi ... More
Presented by Ralf RAPP on 9/6/2018 at 7:00
Type: plenary talk Session: Plenary Session
The High Acceptance Di-Electron Spectrometer (HADES) [1] installed at GSI is a versatile detector, which was originally designed to study medium effects in $e^+e^-$ production in heavy-ion reactions in the SIS-18 energy range (1-2 GeV/nucleon). Its excellent particle identification capabilities allowed for a systematic investigation of dielectron, strange particles and pion production in proton, d ... More
Presented by Beatrice RAMSTEIN on 8/6/2018 at 10:30
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