# 2nd Workshop on Future Directions in Spectroscopy Analysis (FDSA2017)

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

Displaying 17 contributions out of 17
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
Last decade witnessed a proliferation of new exotic states, in particular in the heavy quark sector. A comprehensive picture of all these states remains an unsettled topic. We discuss the issues of the amplitude analyses related to the exotic states, and how to disentangle true states from kinematical effects. We also discuss some results about the production of exotic candidates at hadron colli ... More
Presented by Dr. Alessandro PILLONI
Dispersion relations together with Regge theory implies relations between the low and the high energy regimes of hadronic reactions. These relations are called Finite Energy Sum Rules (FESR) and can be used to constrain low energy models using the high energy data. In this talk we review the use of FESR in hadro- and photo-production of hadrons.
Presented by Dr. Vincent MATHIEU
Data taking is over for the Belle experiment, but its data is still actively analyzed, especially for spectroscopic studies on flavored baryons. In this talk, I will present recent results on baryon spectroscopy at Belle. I will also discuss planned measurements at Belle II, which is expected to give about 50 times higher statistics than Belle, and J-PARC, where intense secondary beams are av ... More
Presented by Dr. Kiyoshi TANIDA
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
Low-energy pion-kaon scattering is crucial for the understanding of many areas in hadronic physics, from Chiral effective theories to the determination of the resonances involved as intermediate states in processes with strangeness. We review our recent analysis of pion-kaon scattering implementing analyticity and crossing symmetry through dispersión relations for both pion-kaon and pion-pion to ... More
Presented by Mr. Arkaitz RODAS BILBAO
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
Proposed theories beyond the Standard Model (SM) can support the breaking of CPT and Lorentz symmetry. Modern searches for violations of these symmetries are often performed using the Standard Model Extension (SME), the most general effective fi eld theory parametrizing CPT and Lorentz violation. The breaking of these symmetries in the SME is characterized by coefficients that couple to the f ... More
Presented by Nathan SHERRILL
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\piD$-wave resonances. Our model implements analyticity and unitarity constraints from relativistic reaction theory. We find two resonances, corresponding to the$a_2$and$a_2'\$.
Presented by Mr. Andrew JACKURA
We present a back of the envelope calculation of mass and radii of charmonia within a non-relativistic framework combining the Uncertainty Princliple and the Variational Principle. These ideas can be straightforwardly extended to other meson and hadron bound-states provided a model for the interaction potential are presented.
Presented by Dr. Alfredo RAYA