from 29 May 2014 to 3 June 2014
Auditorium Maximum
Europe/Warsaw timezone
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Poster Session

Place

Location: Auditorium Maximum
Date: 31 May 15:00 - 17:00

Contribution List

Displaying 30 contributions out of 30
Type: Poster Session: Poster Session
Board #: 18
Quantum entanglement of K and B mesons allows for a direct experimental test of time-reversal symmetry independent of CP violation. The T symmetry can be probed by exchange of initial and final states in the reversible transitions between flavor and CP-definite states of the mesons which are only connected by the T conjugation. While such a test was successfully performed by the BaBar experiment w ... More
Presented by Aleksander GAJOS on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 20
$K_{\ell4}$ decays are interesting for several reasons: they allow an accurate measurement of a combination of S-wave $\pi\pi$ scattering lengths, one form factor is connected to the chiral anomaly and the decay is the best source for the determination of some low-energy constants of ChPT. We present a dispersive approach to $K_{\ell4}$ decays, which takes rescattering effects fully into account. ... More
Presented by Peter STOFFER on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 1
We enlarge the so-called Extended Linear Sigma Model (eLSM) by including the charm quark according to the global U(4)rxU(4)l global chiral symmetry. In the eLSM, besides scalar and pseudoscalar mesons, also vector and axial-vector mesons are present. Almost all the parameters of the model were fixed in a previous study of mesons below 2 GeV. In the extension to the four-flavor case, only three add ... More
Presented by Walaa ESHRAIM on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 21
Despite their long painful history dibaryon searches (where dibaryon means a baryon number $B=2$ state independently on the internal structure: genuine six-quark state/baryonic-molecule) have recently received new interest, in particular by the recognition that there are more complex quark configurations than just the familiar $q\bar{q}$ and $qqq$ systems. The "hidden color" aspect makes dibaryons ... More
Presented by Mikhail BASHKANOV on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 22
Understanding the mechanism of the non-strange tensor meson photoproduction is essential for description of the light meson spectrum. This is because the $f_2(1270)$ photoproduction amplitude is prominent in partial wave analyses where two pions or two kaons in the final state are involved. Description of this sector is complicated, however, by possible existence of scalar and tensor glueballs whi ... More
Presented by Łukasz BIBRZYCKI on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 27
Electromagnetic calorimeter (ECAL) is being developed to complement dilepton spectrometer HADES currently operating on the beam of the SIS18 heavy-ion synchrotron at GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. ECAL will enable the HADES@FAIR experiment to measure data on neutral meson production in heavy ion collisions at the energy range of 2-10 A GeV on the beam of future ... More
Presented by Pablo RODRÍGUEZ RAMOS on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 23
Electromagnetic structure of the complete nonet of vector mesons is investigated in the framework of the Unitary and Analytic model and insufficient experimental information on it is discussed.
Presented by Cyril ADAMUSCIN on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 28
One of the main aspects of the WASA-at-COSY physics program are studies on rare and forbidden decays of light mesons. In this context a large data set of $\eta$ mesons has been produced in proton proton scattering in order to investigate the decay properties of this meson. This high statistic measurement allows, e.g., for the search for the C parity violating reaction $\eta \rightarrow \pi^0 + \te ... More
Presented by Kay DEMMICH on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 8
Dp breakup reaction occupied large phase space. Two and three nucleon forces and relativistic effects can be investigated under various detector configuration. The results of simulation of dp breakup reaction in energy region from 300 to 500 MeV are presented. Preliminary results obtained at 300, 400 and 500 MeV of deuteron energy at some detector configurations at Nuclotron such as future plans i ... More
Presented by Marian JANEK on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 10
Few-nucleon systems are basic laboratories to study nuclear forces. Among them, the system composed of three nucleons (3N) is the simplest and non-trivial environment, in which models of nuclear interaction can be tested. Nucleon-nucleon (NN) interaction is here dominant; there are, however, reasons to assume existence of additional dynamics, referred to as the three-nucleon force (3NF) [1]. Nowad ... More
Presented by Ghanshyam KHATRI on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 24
Decay studies of the $\omega$, a light vector meson, covers a span of interesting physics including $3\pi$ decay dynamics, the $\rho - \omega$ mixing and the $\omega-\pi^0$ transition form factor. The ongoing study presented by this poster covers the first two mentioned topics through measurements of the $\omega\to\pi^+\pi^-\pi^0$ and $\omega\to\pi^+\pi^-$ channels where the $\omega$ was produced ... More
Presented by Lena HEIJKENSKJÖLD on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 15
Short-lived hadronic resonances constitute a sensitive probe of the dynamical evolution of the fireball created in heavy-ion collisions, since a significant fraction of them decay in the time span (of the order of few fm/c) between chemical and kinetic freeze-out. Competing processes, such as regeneration and re-scattering, may alter the ratio of the resonance to non-resonance yields. The study o ... More
Presented by Enrico FRAGIACOMO on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 2
Recently a big progress in understanding and description of the $\pi\pi$ interactions has been made due to dispersive analyses with imposed crossing symmetry [1]. This has led to significant changes in the information on these interactions, (mostly below 1 GeV), presented in the Particle Data Tables 2012 [2]. Nevertheless old parameterizations of the $\pi\pi$ amplitudes with e.g. wide and heavy $f ... More
Presented by Vahabeddin NAZARI on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 29
The Jagiellonian Positron Emission Tomography (J-PET) based on polymer scintillators is currently under development at the Jagiellonian University [1,2,3]. The novelty of the concept lies in employing strips of polymer scintillators instead of crystals as detectors of annihilation quanta, and in using (for the hit position reconstruction) the timing of signals instead of their amplitudes. J-PET d ... More
Presented by Paweł MOSKAL on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 5
We will investigate the role of meson exchange currents in the description of the $\mu^{-}$+d $\rightarrow$ $\nu_{\mu}$+n+n and $\mu^{-}$+$^{3}$He $\rightarrow$ $\nu_{\mu}$+$^{3}$H reactions. They both are treated as the decay of the corresponding muonic atoms, with the muon initially on the lowest K shell. The muon binding energy in these atoms can be safely neglected and in the initial state we ... More
Presented by Alaa Eldeen ELMESHNEB on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 14
We shall discuss to what extent the properties of pseudoscalar and vector mesons (e.g. $\eta$, $\omega$) bound in mesoatomic systems can become modified due to very strong static electromagnetic fields present in the close vicinity of the nucleus surface. Using the analogy with the behavior of ortho-positronium decaying in the magnetic field, we suggest that quantum superposition of spin-singlet a ... More
Presented by Peter FILIP on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 6
We will present a three-dimensional (3D) description of muon induced deuteron disintegration. This reaction is treated as the decay of the muonic atom with the muon initially on the lowest K shell. Our aim is to calculate the total and differential decay rates. We work in momentum space and use 3D momentum eigenstates directly. This approach allowed us to calculate the appropriate nuclear matrix e ... More
Presented by Kacper TOPOLNICKI on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 25
The mass and decay width differences of charge and neutral members of the known $\rho$-meson families are determined by exploiting experimental data on $e^+e^-\to\pi^+\pi^-$ and $\tau^-\to\pi^-\pi^0\nu_{\tau}$ processes and by the Unitary and Analytic models of the corresponding electromagnetic a weak $\pi$ form factors.
Presented by Erik BARTOS on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 13
Charmed baryons are expected to exhibit a rich spectrum of states. However, only a few of these states have been confirmed and there must be many more excited states need to be found. Being one of them, the charmed baryon $\Lambda_c(2880)^+$ was observed by CLEO collaboration, BaBar collaboration and Belle collaboration, respectively. Now, more studies should still be required to enrich our unders ... More
Presented by Xiao-Hua YUAN on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 12
The LHCb experiment has collected more than 3/fb of integrated luminosity in 2011 and 2012 and is producing a large amount of excellent results in beauty and charmed meson physics. An overview of the most recent results on rare B decays, CP violation, and charm physics will be given along with an outlook to the physics perspectives and to the LHCb upgrade.
Presented by Agnieszka OBŁĄKOWSKA-MUCHA on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 3
The recent precise determination of the $\sigma$ meson parameters ($f_0(500)$ meson) was done in analysis of new dispersion relations with imposed crossing symmetry condition [1,2]. Although results of this analysis are widely accepted, one can still find studies which use previous, significantly different values of the mass and the width of that resonance. Although results of that dispersive anal ... More
Presented by Robert KAMIŃSKI on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 17
We present the current status of the analysis of about 1.7 billion $K_S$ $K_L$ pair events collected at DAFNE with the KLOE detector to determine the branching ratio of $K_S \rightarrow \pi e \nu$ decay and the lepton charge asymmetry. This sample is ~4 times larger in statistics than the one used in a previous KLOE analysis, allowing us to improve the accuracy of the measurement and of the relate ... More
Presented by Daria KAMIŃSKA on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 9
Investigation of three-nucleon system provides basis for understanding details of interaction between nucleons, going also beyond simple pairwise forces. Modern realistic nucleon-nucleon (NN) interaction models describe well systems composed of the two nucleons. They are able to predict observables of the deuteron-proton breakup reaction only if combined with additional component of the dynamics - ... More
Presented by Wiktor PAROL on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 26
Pellets are microscopic spheres of frozen hydrogen (approx. 25 micrometers in diameter), used as the target in hadron physics experiments such as WASA (Forschungszentrum Juelich, Germany) and the future PANDA experiment (GSI, Darmstadt, Germany). Because the space between the pellet generator and the interaction region is occupied by the particle detector system, pellets are produced approx. 2-3 m ... More
Presented by Andrzej PYSZNIAK on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 4
The analysis of the process $e^+e^- \to 2(\pi^+\pi^-\pi^0)$ is described. The measurement of the process cross section in $E_{cm} = 1.5 - 2.0$ GeV energy range was based on 22 $pb^{-1}$ of integrated luminosity collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider. The preliminary study of the process dynamics will be also discussed in the talk.
Presented by Peter LUKIN on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 7
The unexplained large discrepancy of the proton charge radius measurements with muonic hydrogen Lamb shift and determinations from elastic electron scattering and Lamb shift in regular hydrogen of seven standard deviations is known as the proton radius puzzle. Suggested solutions of the puzzle range from possible errors in the experiments through unexpectedly large hadronic physics effects to new ... More
Presented by Michael KOHL on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 16
In the analysis of data on decays of the $\Upsilon$-meson family - $\Upsilon(2S)\to\Upsilon(1S)\pi\pi$, $\Upsilon(3S)\to\Upsilon(1S)\pi\pi$ and $\Upsilon(3S)\to\Upsilon(2S)\pi\pi$ - the contribution of multi-channel $\pi\pi$ scattering in the final-state interactions is considered. The analysis, which is aimed at studying the scalar mesons, is performed jointly considering the isoscalar S-wave pro ... More
Presented by Yury SUROVTSEV on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 11
The basic way to understanding the mechanism of reactions involving nucleons and nuclei is creating a model of nuclear forces which with a very good agreement describes the data from experiments. For systems of three nucleons one can do an exact calculations using one of three types of theory, which are used for comparisons with experimental data. The first theory (calculations of Witała group [1 ... More
Presented by Izabela SKWIRA-CHALOT on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 19
In this work, the differential cross section of $\Lambda(1405)$ formation in $K^{-}p \to \Sigma^{+}(1660)$, $\Sigma^{+}(1660) \to \Lambda(1405) \pi^{+}$ and finally $\Lambda(1405) \to (\Sigma \pi)^{0}$ have been calculated theoretically. Calculation and investigation of the invariant mass of this reaction give an opportunity to find out the structure of this resonance state. We use Hemingway expe ... More
Presented by Maryam HASSANVAND on 31/5/2014 at 13:00
Type: Poster Session: Poster Session
Board #: 30
Positron Emission Tomography is a very successful medical imaging system. However, the current PET modalities do not allow for simultaneous whole body imaging because the number of crystals, photomultipliers and electronics modules increase linearly with increasing longitudinal field of view (FOV). Therefore, building a PET detector for covering the whole human body is economically unrealistic whe ... More
Presented by Neha GUPTA, Natalia ZOŃ on 31/5/2014 at 13:00