$\pi-\pi$ scattering phase shift is found to be rational function in the pion c.m. three-momentum variable q with real coefficients. As a result, this phase shift can achieve asymptotically either the value

$\pi/2$ or 0, depending on the fact, if degree of ... More

Presented by Stanislav DUBNICKA on 2/6/2014 at 14:00

Non-perturbative pion dynamics for the

$X(3872)$

Type: parallel talk Session: Parallel Session C3

We discuss the role of the non-perturbative pion dynamics on the near-threshold resonance X(3872) charmonium state, which is assumed to be an S-wave

$D\bar D^*$ bound system [1,2]. The calculations are performed within the framework of coupled-channels Faddeev-type three-body equations for the

$D\bar{D}\pi$ system in the

$J^{PC}=1^{++}$ channel. The

$\pi D$ interaction is parameterised via a $ ... More

Presented by Vadim BARU on 2/6/2014 at 13:40

Pseudoscalar transition form factors from rational approximants

Type: parallel talk Session: Parallel Session C3

Pseudoscalar Transition Form Factors are analyzed in the space-like region at the low- and intermediate-energy regions with rational approximants in a model-independent way. Low-energy parameters are, then, extracted from a fit to such data. The feasibility of the form factors to determine the

$\eta$ and

$\eta'$ mixing is analyzed as well as their implications into the light-by-light contribution ... More

Presented by Pablo SANCHEZ PUERTAS on 2/6/2014 at 13:00

Study of

$\eta$ meson production with polarized proton beam

Type: parallel talk Session: Parallel Session C3

The dynamics of

$\eta$ meson production and the interaction of

$\eta$ mesons with nucleons can be studied using the

$\vec{p}p\to pp\eta$ reaction via measurements of the analyzing power

$A_{y}$ . Previous experiments measuring

$A_{y}$ suffer from low statistics [1,2,3] and large uncertainities, therefore further studies are desirable. To this end, we have performed a measurement of the $\vec{p}p\to ... More

Presented by Iryna OZERIANSKA on 2/6/2014 at 13:20

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Pseudoscalar transition form factors from rational approximants

Parallel C, Auditorium Maximum

Study of $\eta$ meson production with polarized proton beam

Parallel C, Auditorium Maximum

Non-perturbative pion dynamics for the $X(3872)$

Parallel C, Auditorium Maximum

Analysis of the pion scalar form factor provides model independent values of $f_0(500)$ and $f_0(980)$ meson parameters

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