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Related papers: Final State Interactions and epsilon'/epsilon: A C…

200 papers

We analyze the role of final state interactions in decay of the lighest exotic meson, $pi_1$ with $J^{PC}=1^{-+}. We use the relativistic Lippmann-Schwinger equation for two coupled $\pi b_{1}$ and $\pi\rho$ channels. The first one is the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nikodem J. Poplawski , Adam P. Szczepaniak , J. T. Londergan

We analyse the experimental data on near threshold $\pi$, $\eta$, $\omega$, $\eta'$ and $K^+$ production from $pp$ collisions and show that all information gained so far is compatible with approximately constant production matrix elements…

Nuclear Theory · Physics 2007-05-23 A. Sibirtsev , W. Cassing

The role of the final state interactions (FSI) in the inclusive quasi-elastic disintegration of the deuteron is investigated treating the two-nucleon final state within the exact continuum solutions of the non-relativistic Schroedinger…

Nuclear Theory · Physics 2009-11-06 C. Ciofi degli Atti , L. P. Kaptari , D. Treleani

The final state interactions of pions in decays $K^\pm\to\pi^\pm\pi^0\pi^0$ are considered using the methods of quantum mechanics. We show how to incorporate the electromagnetic effects in the amplitudes of these decays and to work out the…

High Energy Physics - Phenomenology · Physics 2010-10-27 S. R. Gevorkyan , A. V. Tarasov , O. O. Voskresenskaya

The influence of the nucleon-nucleon final state interaction (FSI) on properties of the meson production amplitude near threshold is discussed. For the nucleon-nucleon interaction a simple Yamaguchi potential as well as realistic potential…

Nuclear Theory · Physics 2008-11-26 V. Baru , A. M. Gasparian , J. Haidenbauer , A. E. Kudryavtsev , J. Speth

I shortly review the present status of the theoretical estimates of eps'/eps. I consider a few aspects of the theoretical calculations which may be relevant in understanding the present experimental results. In particular, I discuss the…

High Energy Physics - Phenomenology · Physics 2016-11-23 Stefano Bertolini

Exploiting $B$-meson decays for Standard Model tests and beyond requires a precise understanding of the strong final-state interactions that can be provided model-independently by means of dispersion theory. This formalism allows one to…

High Energy Physics - Phenomenology · Physics 2016-02-17 J. T. Daub , C. Hanhart , B. Kubis

We study the effects of final state interactions on the eta(b) => J/psi J/psi decay. In particular, we discuss the effects of the annihilation of eta(b) into two charmed meson and their rescattering into J/psi J/psi. We find that the…

High Energy Physics - Phenomenology · Physics 2008-10-16 Pietro Santorelli

Are effects of short range correlations in the ground state of the target nucleus (initial state correlations ISC) observable in experiments on quasielastic $A(e,e'p)$ scattering at large missing momentum $p_{m}$? Will the missing momentum…

Nuclear Theory · Physics 2007-05-23 A. Bianconi , S. Jeschonnek , N. N. Nikolaev , J. Speth , B. G. Zakharov

Recent calculations of the effects of hadronization and final state interaction (FSI) in semi-exclusive deep-inelastic scattering (DIS) $A(e,e'(A-1))X$ processes are reviewed. The basic ingredient underlying these calculations, {\it viz}…

Nuclear Theory · Physics 2015-06-26 C. Ciofi degli Atti , L. P. Kaptari , B. Z. Kopeliovich

Inclusive and exclusive decays of heavy flavours look quite different from a theoretical viewpoint. We argue that inclusive decays can be treated quantitatively and report on the calculation of the perturbative corrections to the Final…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. G. Uraltsev

We evaluate the contribution of the final state interaction (FSI) due to single pion exchange inelastic scattering for $D^+\rightarrow \bar {K}^{0*}\pi^+$ and $D^+\rightarrow \bar K^0\rho^+$ processes. The effects are found to be very…

High Energy Physics - Phenomenology · Physics 2009-10-30 X. Q. Li , B. S. Zou

In this letter we suggest that the obvious discrepancy between theoretical prediction on the $\mathrm{non}-D\bar D$ decays of $\psi(3770)$ and data is to be alleviated by taking final state interaction (FSI) into account. By assuming that…

High Energy Physics - Phenomenology · Physics 2009-05-06 Xiang Liu , Bo Zhang , Xue-Qian Li

There exist many experimental indications that final-state interactions (FSIs) may play a prominent role not only in charmful B decays but also in charmless B ones. We examine the final-state rescattering effects on the hadronic B decay…

High Energy Physics - Phenomenology · Physics 2014-11-18 Hai-Yang Cheng , Chun-Khiang Chua , Amarjit Soni

We describe the interference between amplitudes $e^ + e^-\to\rho\to\gamma\pi^+\pi^-$ and $e^ + e^-\to\phi\to\gamma (f_0 + \sigma) \to\gamma\pi^ + \pi^-$, with regard to the phase of the elastic $\pi\pi$ scattering background and mixing of…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. N. Achasov , V. V. Gubin

We study the direct CP violation induced by inelastic final state interaction (FSI) rescattering in $D\to\pi\pi$ modes, and find that the resultant CP asymmetry is about $10^{-4}$ which is larger than $\epsilon'$ in the K-system. Our…

High Energy Physics - Phenomenology · Physics 2014-11-17 X. Q. Li , B. S. Zou

We present a systematic study of the final-state interaction (FSI) effects in $D(e,e'p)$ scattering in the CEBAF energy range with particular emphasis on the phenomenon of the angular anisotropy of the missing momentum distribution. We find…

Nuclear Theory · Physics 2009-10-28 A. Bianconi , S. Jeschonnek , N. N. Nikolaev , B. G. Zakharov

We study final-state interactions in nonleptonic weak decays in statistical models by averaging over ensembles of strong interaction S-matrices. The models range from one with completely random strong interactions, which gives extensive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert N. Cahn , Mahiko Suzuki

The updated experimental data are used to analyze the final-state interaction phases of the two-body decay amplitudes of the B mesons. Combining the upper bounds on the branching fractions of the color-suppressed modes with those of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Suzuki

Angular correlations of identified particles measured in ultrarelativistic proton-proton (pp) and heavy-ion collisions exhibit a number of features which depend on the collision system and particle type under consideration. Those features…

Nuclear Theory · Physics 2021-11-30 Łukasz Kamil Graczykowski , Małgorzata Anna Janik