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Related papers: Charged K* Photoproduction in a Regge model

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A Bayesian analysis of the world's p(gamma,K+)Lambda data is presented. We adopt a Regge-plus-resonance framework featuring consistent couplings for nucleon resonances up to spin J=5/2, and evaluate 2048 model variants considering all…

Nuclear Theory · Physics 2012-12-18 Pieter Vancraeyveld , Lesley De Cruz , Jan Ryckebusch , Tom Vrancx

Inclusive K+ production in proton-proton collisions has been measured at a beam energy of 2.16 GeV using the COSY-ANKE magnetic spectrometer. The resulting spectrum, as well as those corresponding to K+ p and K+ pi+ correlated pairs, can…

A Regge model with absorptive corrections is employed in a global analysis of the world data on positive and negative pion photoproduction for photon energies from 3 to 8 GeV. In this region resonance contributions are expected to be…

Nuclear Theory · Physics 2008-11-26 A. Sibirtsev , J. Haidenbauer , S. Krewald , T. -S. H. Lee , U. -G. Meißner , A. W. Thomas

The total hadronic gamma*gamma* cross sections at high energy are calculated as a function of energy and photon virtuality in a model combining Regge exchange, the quark box diagram (a fixed pole in Regge language) and soft and hard pomeron…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Donnachie , H. G. Dosch , M. Rueter

We study the gamma p ---> K^+ Lambda(1405) reaction at energies close to threshold using a chiral unitary model where the resonance is generated dynamically from K^-p interaction with other channels constructed from the octets of baryons…

Nuclear Theory · Physics 2009-10-31 J. C. Nacher , E. Oset , H. Toki , A. Ramos

This work measured $d\sigma/d\Omega$ for neutral kaon photoproduction reactions from threshold up to a c.m.\ energy of 1855MeV, focussing specifically on the $\gamma p\rightarrow K^0\Sigma^+$, $\gamma n\rightarrow K^0\Lambda$, and $\gamma…

A search for the \thp in the reaction $\gamma d \to pK^-K^+n$ was completed using the CLAS detector at Jefferson Lab. A study of the same reaction, published earlier, reported the observation of a narrow \thp resonance. The present…

High Energy Physics - Experiment · Physics 2010-04-06 B. McKinnon , K. Hicks

A chiral constituent quark model approach, embodying s- and u-channel exchanges,complemented with a Reggeized treatment for t-channel is presented. A model is obtained allowing data for $\pi^- p \to \eta n$ and $\gamma p \to \eta p$ to be…

Nuclear Theory · Physics 2015-03-17 Jun He , B. Saghai

Differential cross-section and single polarization observables in the process gamma p --> K^+ Lambda are investigated within a constituent quark model and a dynamical coupled-channel formalism. The effects of two new nucleon resonances and…

Nuclear Theory · Physics 2008-11-26 B. Saghai , J. -C. David , B. Julia-Diaz , T. -S. H. Lee

The missing mass spectrum measured in high resolution studies of the reaction pp -> K^+X is analyzed with respect to the strong final state interaction near the Lambda p production threshold. The observed spectrum can be described by…

Nuclear Experiment · Physics 2009-11-10 F. Hinterberger , A. Sibirtsev

Results of a new analysis of the $K^+K^-$ photoproduction at two photon energies $E_\gamma = 4{GeV}$ and $5.65{GeV}$ with a particular emphasis on the $S$-wave production are presented. We show that the proper treatment of all the helicity…

High Energy Physics - Phenomenology · Physics 2009-11-10 Lukasz Bibrzycki , Leonard Lesniak , Adam P. Szczepaniak

A study of the $^2$H$({\gamma},{\Lambda})$X reaction was performed using a tagged photon beam at the Research Center for Electron Photon Science (ELPH), Tohoku University. The photoproduced $\Lambda$ was measured in the $p{\pi^{-}}$ decay…

In a framework of intranuclear cascade (INC) type calculation, we study a momentum spectrum in reactions \KK at a beam momentum of 1.65 GeV/c. INC model calculations are compared with the relativistic impulse approximation (RIA)…

Nuclear Theory · Physics 2009-10-30 Y. Nara , A. Ohnishi , T. Harada , A. Engel

Photoproduction of the pentaquark particle Theta^+ on the nucleon has been studied by using an isobar and a Regge model. Using the isobar model, total cross sections around 100 nb for the gamma n --> K- Theta+ channel and 400 nb for the…

Nuclear Theory · Physics 2017-08-23 T. Mart , A. Salam , K. Miyagawa , C. Bennhold

It is shown that a recent extraction of the total cross section for pp->K+ n Sigma+ from inclusive K+ production data is in conflict with experimental data on the exclusive pp->K+ p Lambda reaction. The result may be interpreted as an upper…

Nuclear Experiment · Physics 2011-01-04 Yu. Valdau , C. Wilkin

We provide a dispersion-theoretical representation of the reaction amplitudes $\gamma K\to K \pi$ in all charge channels, based on modern pion-kaon $P$-wave phase shift input. Crossed-channel singularities are fixed from phenomenology as…

High Energy Physics - Phenomenology · Physics 2021-03-10 Maximilian Dax , Dominik Stamen , Bastian Kubis

We present an amplitude analysis of high-energy polarized photoproduction of $\pi^-\Delta^{++}$ within a Regge exchange framework. A Regge amplitude model incorporating $\pi$, $\rho$, $b_1$, and $a_2$ trajectory exchanges is fit…

The $\Sigma(1385)$ resonance, or $\Sigma^*$, is well-known as part of the standard baryon decuplet with spin $J=3/2$. Measurements of the reaction $\gamma p \to K^+ \Sigma^{*0}$ are difficult to extract due to overlap with the nearby…

Nuclear Experiment · Physics 2009-01-14 K. Hicks , D. Keller , H. Kohri , the LEPS Collaboration

We present a phenomenological study of the $\gamma\gamma^*\to K\bar{K}^*(892)$ process by including the $s$-channel production of the $\eta(1475)$ and $f_1(1420)$ resonances. The non-resonant channel via $K$- and $K^*$-exchanges is…

High Energy Physics - Phenomenology · Physics 2024-08-22 Xiu-Lei Ren , Igor Danilkin , Marc Vanderhaeghen

We apply the generalized Veneziano model ($B_5$ model) in the double-Regge exchange limit to the $\gamma p \to K^+ K^- p$ reaction. Four different cases defined by the possible combinations of the signature factors of leading Regge…

High Energy Physics - Phenomenology · Physics 2015-03-05 M. Shi , I. V. Danilkin , C. Fernández-Ramírez , V. Mathieu , M. R. Pennington , D. Schott , A. P. Szczepaniak
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