# MESON2016

2-7 June 2016
Auditorium Maximum
Europe/Warsaw timezone
14th International Workshop on Meson Production, Properties and Interaction
Home > Timetable > Session details
PDF | iCal

# Plenary Session

## Place

Location: Auditorium Maximum
Date: from 2 Jun 09:30 to 7 Jun 14:00

## Timetable | Contribution List

Displaying 38 contributions out of 38
Type: plenary talk Session: Plenary Session
Results from the ALICE experiment obtained in the second LHC run (Run-2) on charged-particle production will be presented. Charged hadrons emerging from high-energy collisions are dominated by mesons (mainly pions and kaons), being the baryon fraction (mainly protons and antiprotons) lower than about 5% of the total inclusive charged-hadron production. The pseudorapidity and transverse momentum di ... More
Presented by Roberto PREGHENELLA on 3/6/2016 at 10:50
Type: plenary talk Session: Plenary Session
The intense, cw beams of polarized electrons with energies of up to 6 GeV from the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab have provided a unique tool for the study of atomic nuclei and their constituents. One hundred and seventy three experiments were carried out using the original accelerator configuration between 1995, when operations began, and 2012, when the fa ... More
Presented by Lawrence CARDMAN on 6/6/2016 at 10:30
Type: plenary talk Session: Plenary Session
The start of LHC Run 2, with proton-proton collisions at $\sqrt{s}=13$ TeV, opens a new regime in which QCD predictions for charm meson production may be precisely tested. LHCb is uniquely suited to make these measurements in the forward region and obtained results can be used to further constrain parton distribution functions. In addition to measuring absolute production cross-sections, ratios ... More
Presented by Dominik MUELLER on 7/6/2016 at 11:30
Type: plenary talk Session: Plenary Session
One of the remaining challenges within the standard model is to gain a good understanding of QCD in the non-perturbative regime. A key step towards this aim is baryon spectroscopy, investigating the spectrum and the properties of baryon resonances. To gain access to resonances with small $\pi N$ partial width, photoproduction experiments provide essential information. Partial wave analyses need to ... More
Presented by Jan HARTMANN on 4/6/2016 at 10:00
Type: plenary talk Session: Plenary Session
Recent progress in lattice calculations of exotic hadronic states is reviewed. The theoretical and algorithmic advances that are enabling new calculations are described and results from heavy and light quark systems are presented. The challenges for lattice exotic hadron spectroscopy are highlighted.
Presented by Sinead RYAN on 2/6/2016 at 11:30
Type: plenary talk Session: Plenary Session
With the data taking at BESIII detector, we perform a search of exotics, including X, Y, and Z states. As a result, we observed X(1835) in $J/psi\rightarrow \gamma p\bar{p}$, observed X(3823) in $e^+e^-\rightarrow \pi^+\pi^-\chi_{c1}$. We confirmed X(3872) in $e^+e^-\rightarrow \gamma \pi^+\pi^- J/\psi$. We observed a possible resonance Y(4220) in the line-shape of $e^+e^-\rightarrow \pi^+\pi^- ... More Presented by Zhiyong WANG on 2/6/2016 at 10:30 Type: plenary talk Session: Plenary Session Measurements of b-hadron and quarkonium production cross sections provide essential information to understand QCD. This talk will show new measurements of double-differential production cross sections vs. transverse momentum pT and rapidity y at center-of-mass energy of 13 TeV performed by CMS experiment with data collected in 2015. Comparisons with results obtained at 7 TeV will be shown. Presented by Paolo RONCHESE on 7/6/2016 at 13:00 Type: plenary talk Session: Plenary Session I will review current activities and future plans for the Joint Physics Analysis Center. Presented by Adam SZCZEPANIAK on 3/6/2016 at 7:00 Type: plenary talk Session: Plenary Session The anomalous magnetic moment of the muon$(g-2)\mu$is one of the most precisely studied observables of the Standard Model. However, there is a long standing discrepancy of three to four standard deviations between its value obtained from direct measurements and the Standard Model prediction. Since the deviation might hint at physics beyond the Standard Model, new experiments are planned to measu ... More Presented by Christoph Florian REDMER on 4/6/2016 at 11:30 Type: plenary talk Session: Plenary Session Since 2003, many new structures in the heavy quarkonium mass regions, dubbed XYZ, were observed in experiments. Some of them are close to thresholds of two open-flavor mesons, and were suggested to be candidates of hadronic molecules. I will discuss some of these XYZ states from the point of view of hadronic molecules. Presented by Feng-Kun GUO on 7/6/2016 at 12:00 Type: plenary talk Session: Plenary Session The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DAΦNE collider at LNF-INFN, which is fundamental to solve longstanding questions in the non-perturbative strangeness QCD sector. AMADEUS step 0 consisted in the reanalysis of 2004/2005 KLOE data, exploiting$K^−$absorptions in H,${}^4$He,${}^9$Be and${}^{12}$C, leading to the first ... More Presented by Alessandro SCORDO on 6/6/2016 at 9:30 Type: plenary talk Session: Plenary Session In the 12 GeV era, Hall B houses the CEBAF Large Acceptance Spectrometer (CLAS12), which is part of the Jefferson Lab 12 GeV upgrade project. For the foreseeable future, CLAS12 will be the only large acceptance detector available worldwide for use in electron scattering experiments. Its mission is to break new ground in our understanding of the complex structure of the nucleon and nuclei, as wel ... More Presented by Latifa ELOUADRHIRI on 4/6/2016 at 13:00 Type: plenary talk Session: Plenary Session CERN has hosted a sequence of dedicated high intensity kaon physics experiments over several decades. The most recent of these experiments are NA48/2 (collected data in 2003-2004), NA62-RK (collected data in 2007) and NA62 (on-going, first physics data collected in 2015). Recent new results from these experiment are presented, including a search for lepton number violation in kaon decays, searches ... More Presented by Evgueni GOUDZOVSKI on 6/6/2016 at 11:30 Type: plenary talk Session: Plenary Session The$\bar{K}N$interaction is known to be strongly attractive from low-energy scattering data [1] and X-ray spectroscopy of kaonic atoms [2]. It is widely accepted that the$\Lambda(1405)$is$K^{−} p$bound state / penta-quark or at least strongly couple to that state. The natural expectation of this assumption is that the kaonic nuclear bound state will be formed, and accordingly, such states ... More Presented by Masahiko IWASAKI on 7/6/2016 at 9:30 Type: plenary talk Session: Plenary Session A kaonic atom is a Coulomb-bound system formed by a kaon, electrons, and a nucleus. Effects of the strong interaction between the kaon and atomic nucleus are experimentally extracted from characteristic x-ray-emission spectra of the most tightly bound energy levels that are the most perturbed by the strong force. Especially on the light kaonic atom studies, there are significant progress in resent ... More Presented by Hideyuki TATSUNO on 6/6/2016 at 10:30 Type: plenary talk Session: Plenary Session Light meson spectroscopy plays a crucial role in examining the QCD theory. The BESIII has collected the largest$J/\psi$and$\psi^\prime$sample in the world, therefore provides a good chance to study light mesons by studying$J/\psi$and$\psi^\prime$decays. In this talk, we will report recent results on light meson spectroscopy at BESIII. Presented by Tianjue MIN on 7/6/2016 at 10:30 Type: plenary talk Session: Plenary Session X-ray spectroscopy of exotic atoms allows the determination of the mass of short-lived negatively charged unstable particle like muons, pions, or kaons from the energies of characteristic X-ray radiation. Pions are captured by the target atoms in a highly excited state and a de-excitation cascade takes place accompanied by Auger and radiative emission. Auger emission is dominant at the beginning ... More Presented by Martino TRASSINELLI on 7/6/2016 at 9:00 Type: plenary talk Session: Plenary Session The goal of the COMPASS experiment at CERN is to study the structure and dynamics of hadrons. The two-stage spectrometer used by the experiment has good acceptance and covers a wide kinematic range for charged as well as neutral particles allowing to access a wide range of reactions. Light mesons are studied with negative (mostly$\pi^-$) and positive ($p$,$\pi^+$) hadron beams with a momentum of ... More Presented by Boris GRUBE on 7/6/2016 at 10:00 Type: plenary talk Session: Plenary Session Glueballs, i.e. bound states of gluons, were predicted since the early days of Quantum Chromodynamics. They are expected to exist because gluons interact strongly with themselves (`gluons shine in their own light'). Indeed, within Lattice QCD a full spectrum of glueballs has been obtained. The lightest glueball is predicted to be a scalar state and has a mass about$1.7$GeV: as a consequence, i ... More Presented by Francesco GIACOSA on 3/6/2016 at 8:20 Session: Plenary Session on 2/6/2016 at 7:30 Session: Plenary Session Presented by Avraham GAL on 7/6/2016 at 11:30 Type: plenary talk Session: Plenary Session Exotic hadronic states with other configurations have been searched for and many candidates were proposed including glueballs, hybrids, multi-quark states, and hadron molecules. Since a proton and a neutron can be bounded to form a deuteron, it is also believed that other states beyond the quark model must exist. Dramatic progress was made in the study of the exotic states after the discovery of ... More Presented by Chengping SHEN on 2/6/2016 at 12:30 Type: plenary talk Session: Plenary Session I discuss the experimental evidence for and theoretical interpretation of the new mesons and baryons with two heavy quarks. These include doubly-heavy baryons, exotic hadronic quarkonia and most recently a manifestly exotic pentaquark-like doubly heavy baryon with a minimal quark content$uud\bar c$discovered by LHCb, whose mass, decay mode and width are in agreement with a prediction based ... More Presented by Marek KARLINER on 2/6/2016 at 12:00 Type: plenary talk Session: Plenary Session Ever since Weinberg's seminal predictions of the pion-nucleon scattering amplitudes at threshold, this process has been of central interest for the study of chiral dynamics involving nucleons. The scattering lengths or the pion-nucleon sigma-term are fundamental quantities characterizing the explicit breaking of chiral symmetry by means of the light quark masses. On the other hand, pion-nucleon dy ... More Presented by Bastian KUBIS on 3/6/2016 at 7:40 Type: plenary talk Session: Plenary Session Precision spectroscopy of deeply bound pionic atoms with relatively heavy nuclei is known to provide information on the partial restoration of the chiral symmetry in nuclear medium. We have conducted a series of experimental spectroscopy of pionic atoms with unprecedented precision by using ($d$,$^{3}$He) reactions on tin isotopes. Recent analysis results are reported in the presentation. Presented by Kenta ITAHASHI on 6/6/2016 at 10:00 Type: plenary talk Session: Plenary Session An overview of experimental world database as well as theoretical models (in particular partial wave analysis) will be given. An example of the unique data gathered by HADES experiment both in hadron and dilepton channel will be presented. (t.b.c.) Presented by Witold PRZYGODA on 6/6/2016 at 13:00 Type: plenary talk Session: Plenary Session First results of the ATLAS experiment at LHC on quarkonium and heavy flavour meson production in proton-proton collisions at 13 TeV are presented. A brief summary of the results obtained at 7-8 TeV is also reported. Comparison of the data cross sections with various theoretical predictions is discussed. Prospects for further studies with available and coming data are outlined. Presented by Leonid GLADILIN on 7/6/2016 at 12:30 Type: plenary talk Session: Plenary Session The A2 Collaboration at the Mainz Microtron MAMI is measuring photon absorption cross section using circularly and linearly polarized photons up to energies of 1.5GeV. The photons are produced in the ‘Bremsstrahlungs’ process, the energy is determined by a dedicated tagging system. The Crystal Ball/ TAPS detector system with its high capability to cope with multi photon final states is used t ... More Presented by Andreas THOMAS on 3/6/2016 at 10:10 Type: plenary talk Session: Plenary Session Thanks to its unique capabilities the LHCb experiment has been making important measurements related to exotic hadron candidates. Two$J/\psi p$resonances consistent with pentaquark states were observed last year in$\Lambda_b$decays to$J/\psi p K^-. This measurement will be discussed together with more recent follow up work. New results on tetraquark candidates will also be presented. Presented by Tomasz SKWARNICKI on 2/6/2016 at 8:00 Type: plenary talk Session: Plenary Session Dark Photons are hypothetical extra-U(1) gauge bosons, which are motivated by a number of astrophysical anomalies as well as the presently seen deviation btw. the Standard Model prediction and the direct measurement of the anomalous magnetic moment of the muon. We review recent searches for such a Dark Photon, which are carried out at various hadron physics facilities. Presented by Achim DENIG on 2/6/2016 at 13:00 Type: plenary talk Session: Plenary Session An electric dipole aligned along the spin axis of a fundamental particle, nucleus, or atomic system violates both parity conservation and time reversal invariance. The observation of such a phenomenon would, at present or proposed levels of experimental sensitivity, signal new physics beyond the Standard Model. The usual method for identifying an electric dipole moment (EDM) in such searches is ... More Presented by Paolo LENISA on 4/6/2016 at 9:00 Type: plenary talk Session: Plenary Session The Mainz Energy-recovering Superconducting Accelerator (MESA) is a high intensity recirculating linear accelerator in the hundred MeV Range. Beam energy recovery at currents of 1mA or even more enables high luminosities with windowless gas targets. Since each beam particle passes the target only once stationary conditions are achieved, yielding optimum background conditions. Experiments co ... More Presented by Kurt AULENBACHER on 4/6/2016 at 12:30 Type: plenary talk Session: Plenary Session The GlueX Experiment at Jefferson Lab has just completed its commissioning runs and is poised to start physics running in the fall of 2016. All detector elements are now working very close to design specifications and early physics analyses have been started. I will present an overview of the GlueX physics program as well as the very early analyses. Detector performance will be discussed and prel ... More Presented by Curtis A. MEYER on 4/6/2016 at 9:30 Type: plenary talk Session: Plenary Session The KLOE-2 experiment at the INFN Laboratori Nazionali di Frascati (LNF) is currently taking data at the upgradede^{+}e^{-}$DAFNE collider. Present Run II follows a development phase to assess the feasibility of a long term acquisition program, Run I, which successfully ended in July 2015 with 1 fb$^{-1}$integrated luminosity collected in less than eight months. For the first time the "crab ... More Presented by Michał SILARSKI on 6/6/2016 at 12:00 Type: plenary talk Session: Plenary Session The understanding of the QCD in the non perturbative regime, is one of the key issue to have a complete picture of the strong interactions. Recent findings of new and unexpected resonances, with unresolved properties, show that the hadron spectrum is not yet completely understood. This is also underlined by the ongoing discussion on multi-quark states, and on other exotic states with gluonic degre ... More Presented by Paola GIANOTTI on 4/6/2016 at 10:30 Type: plenary talk Session: Plenary Session Theory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between$\pi^+\pi^-$atom lifetime and a difference of S-wave pion-pion scattering lengths with isospin 0 ($a_0$) and 2 ($a_2$). Similar relation exists for$K^+\pi^-$and$\pi^+K^-$atoms lifetime and pion-kaon scattering lengths with isospin 1/2 ($a_{1/2}$) an ... More Presented by Valeriy YAZKOV on 6/6/2016 at 9:00 Type: plenary talk Session: Plenary Session The hadronic physics programme at the cooler synchrotron and storage ring (COSY) of the Forschungszentrum Juelich terminated at the end of 2014. This talk attempts to review the major achievements in the field realised over the twenty years of intense research activity. This includes the evidence for dibaryons seen in two-pion production, which was backed up by measurements of the analysing power ... More Presented by Colin WILKIN on 3/6/2016 at 9:30 Type: plenary talk Session: Plenary Session The CMD-3 detector collected data since December 2010 at the electron-positron collider VEPP-2000. The data sample corresponds to about 60 inverse picobarn of integrated luminosity collected in the c.m. energy range from 0.32 up to 2 GeV. The measurement of the integrated luminosity is based on two QED processes:$e^+e^- \to e^+e^-$and$\gamma\gamma\$, that provided the systematic accuracy in lumi ... More
Presented by Gennady FEDOTOVICH on 4/6/2016 at 12:00
Building timetable...