7-11 November 2017
Museo de la Luz
Mexico/General timezone
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Contribution List

Displaying 11 contributions out of 11
BESIII (Beijing Spectrometer) is a general purpose 4π detector at the upgraded BEPCII (Beijing Electron and Positron Collider) that operated in the τ-charm threshold energy region[1]. Since 2009, it has collected the world’s largest data samples of J/ψ, ψ(3686), ψ(3770) and ψ(4040) decays. More recently, data were taken in the energy region above 4 GeV, where energies up to about 4.6 GeV a ... More
Presented by Dr. Beijiang LIU
Using large data samples of di-muon events, CMS has performed detailed measurements in the field of **Hadron Spectroscopy**. Recent results include the search for an unexpected narrow $B_s \, \pi^{\pm}$ structure claimed by the $D\emptyset$ Collaboration and named $X(5568)$ (its interest resides in its possible interpretation as a compact hadronic state composed of four different quark flavours: * ... More
Presented by Dr. Leonardo CRISTELLA
We perform Dalitz plot analyses of $J/\psi$ three-body hadronic decays to $\pi^+ \pi^-\pi^0$, $K^+ K^-\pi^0$ and $K^0_S K^{\pm} \pi^{\mp}$ using the isobar and Veneziano models. The $J/\psi$ is produced through the Inital-State-Radiation process. We also perform Dalitz plot analyses of $\eta_c$ three-body hadronic decays to $K^+ K^-\pi^0$ and $K^0_S K^{\pm} \pi^{\mp}$, where the $\eta_c$ is produ ... More
Presented by Prof. Antimo PALANO
In this short talk we present results by the CMS Collaboration on the search and characterization of exotic hadrons, including X(3872), Y(4140) and X(5568), as well as prospects for confirmation of the Z(4430) and Pc(4XXX) states.
Presented by Dr. Ivan HEREDIA DE LA CRUZ
We perform the Dirac quantization of RS fields interacting with a spinor and the first derivative of a pseudoscalar field. We achieve the calculations for two forms of this interaction: first we review the conventional coupling of lowest derivative order, reproducing the well known inconsistencies in its anticommutator algebra. Then, we perform the analysis on the next order term popularly kn ... More
Presented by Prof. Alejandro MARIANO
Partial-wave analysis of meson and photon-induced reactions is needed to enable the comparison of many theoretical approaches to data. In both energy-dependent and independent parametrizations of partial waves, the selection of the model amplitude is crucial. Principles of the S-matrix are implemented to different degree in different approaches; but a many times overlooked aspect c ... More
Presented by Dr. Raquel MOLINA PERALTA
The baryon electromagnetic form factors are expressed in terms of two-dimensional densities describing the distribution of charge and magnetization in transverse space at fixed light-front time. We calculate the transverse densities of the spin-1/2 flavor-octet baryons at peripheral distances $b=\mathcal{O}(M^{-1}_\pi)$ using methods of relativistic chiral effective field theory ($\chi$EFT) and d ... More
Presented by Dr. Astrid Nathalie HILLER BLIM
The versatile 4π-detector PANDA will be built at the Facility for Antiproton and Ion Research (FAIR), an accelerator complex, currently under construction near Darmstadt, Germany. A cooled antiproton beam in a momentum range of 1.5 − 15GeV/c will be provided by the High Energy Storage Ring (HESR). PANDA will make use of the gluon-rich environment of the antiproton-proton interactions to address ... More
Presented by Dr. Malte ALBRECHT
A precise understanding of low-energy pion-nucleon interactions is central for many areas in nuclear and hadronic physics, ranging from the scalar couplings of the nucleon to the long-range part of two-pion-exchange potentials and three-nucleon forces in Chiral Effective Field Theory. We present a calculation that combines the general principles of analyticity, unitarity, and crossing symmetry wit ... More
Presented by Dr. Jacobo RUIZ DE ELVIRA
The LHCb has reported the observation of a resonancelike structure, the $P_c(4450)$, in the $J/\psi~p$ spectrum. In our work, we discuss the feasibility of detecting this structure in $J/\psi$ photoproduction, e.g. in the measurement that has recently been approved for the CLAS12 experiment at JLab. We take into account the experimental resolution effects, and perform a global fit to world $ ... More
Presented by Dr. Astrid Nathalie HILLER BLIM
We present recent results on a new joint JPAC-COMPASS analysis on the diffractive production of $\eta\pi$ $D$-wave resonances. Our model implements analyticity and unitarity constraints from relativistic reaction theory. We find two resonances, corresponding to the $a_2$ and $a_2'$.
Presented by Mr. Andrew JACKURA