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Kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions are studied in a boson exchange model. For the latter two interactions, the exchanged pion can be on-mass shell, only contributions due to a…

Nuclear Theory · Physics 2008-11-26 G. Q. Li , C. M. Ko , W. S. Chung

The antikaon production cross section from nucleon-nucleon reactions near threshold is studied in a meson exchange model. We include both pion and kaon exchange, but neglect the interference between the amplitudes. In case of pion exchange…

Nuclear Theory · Physics 2009-10-30 A. Sibirtsev , W. Cassing , C. M. Ko

Motivated by the renewed interest in studying the pion production on nuclei with protons at few GeV incident energies, we investigate the pion production in proton-proton collisions over an energy range of 300 $MeV$ to 2 $GeV$. Starting…

Nuclear Theory · Physics 2009-10-30 A. Engel , A. K. Dutt-Mazumder , R. Shyam , U. Mosel

Inclusive cross section for pion production in proton - proton collisions are calculated based on unintegrated parton distribution functions (uPDFs). In addition to purely gluonic terms the present approach includes also quark degrees of…

Nuclear Theory · Physics 2015-06-26 Marta Tichoruk , Antoni Szczurek

The cross sections for producing K$^-$ mesons in nucleon-hyperon elementary processes are estimated assuming one-pion exchange and using the experimentally known pion-hyperon cross sections. The results are implemented in a transport model…

Nuclear Theory · Physics 2009-11-10 H. W. Barz , L. Naumann

Exclusive data on both the elementary kaon and antikaon production channels have been taken at the cooler synchrotron COSY in proton-proton scattering. In the kaon--hyperon production an enhancement by one order of magnitude of the…

The energy dependence of the total kaon production cross sections in baryon baryon ($N$ and $\Delta$) collisions are studied in the resonance model, which is a relativistic, tree-level treatment. This study is the first attempt to complete…

Nuclear Theory · Physics 2014-11-18 K. Tsushima , A. Sibirtsev , A. W. Thomas , G. Q. Li

We investigate the exclusive proton-induced $K^+$ production near the kaon threshold. Compared are two models: a meson-exchange model, which includes $\pi$, \rho$, $K$ and $K^\ast$ exchange, together with the dominant baryon resonances, and…

Nuclear Theory · Physics 2011-03-17 Frieder Kleefeld , Fernando Pilotto , Manfred Dillig

The differential production cross sections of K^+ and K^- mesons have been measured at the ITEP proton synchrotron in p+Be, p+Cu collisions under lab angle of 10.5^0, respectively, at 1.7 and 2.25, 2.4 GeV beam energies. A detailed…

The differential and total cross sections for kaon pair production in the pp->ppK+K- reaction have been measured at three beam energies of 2.65, 2.70, and 2.83 GeV using the ANKE magnetic spectrometer at the COSY-Juelich accelerator. These…

We use our model for neutrino pion production on the nucleon to study pion production on a nucleus. The model is conveniently modified to include in-medium corrections and its validity is extended up to 2 GeV neutrino energies by the…

High Energy Physics - Phenomenology · Physics 2013-04-10 E. Hernández , J. Nieves , M. J. Vicente-Vacas

Total inclusive cross sections for neutral and charged pion production in proton-nucleus and nucleus-nucleus reactions have been calculated and compared to experiment. Nucleon-nucleon theoretical cross sections have been scaled up to…

Nuclear Theory · Physics 2008-11-26 John W. Norbury , Lawrence W. Townsend

High-p_T pion and kaon production is studied in relativistic proton-proton, proton-nucleus, and nucleus-nucleus collisions in a wide energy range. Cross sections are calculated based on perturbative QCD, augmented by a phenomenological…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. Zhang , G. Fai , G. Papp , G. G. Barnafoldi , P. Levai

Total and differential cross sections from literature, on the production of K+ mesons in pA interactions at projectile energies between T=0.8 and 2.9 GeV, covering the transition across the free nucleon-nucleon threshold at 1.58 GeV, have…

Nuclear Experiment · Physics 2009-11-07 M. Buescher , B. L. Ioffe , V. Koptev , M. Nekipelov , A. Sibirtsev , K. Sistemich , J. Speth , H. Stroeher

Phi meson production in pion-baryon and baryon-baryon interactions near the production threshold is studied in a boson-exchange model. Parameters in this model are either taken from the Bonn model for the nucleon-nucleon potential or…

Nuclear Theory · Physics 2009-10-30 W. S. Chung , G. Q. Li , C. M. Ko

The exclusive $K^+$ meson production in a proton-nucleus collision, leading to two body final states, is investigated in a fully covariant two-nucleon model based on the effective Lagrangian picture. The explicit kaon production vertex is…

Nuclear Theory · Physics 2009-11-10 R. Shyam , H. Lenske , U. Mosel

Kaon production in pion-nucleon collisions in nuclear matter is studied in the resonance model. To evaluate the in-medium modification of the reaction amplitude as a function of the baryonic density we introduce relativistic, mean-field…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , A. Sibirtsev , A. W. Thomas

We reanalyse the production of $p\bar{p}$ pairs in proton-nucleus and nucleus-nucleus collisions employing novel elementary cross sections for baryon-baryon and pion-baryon production channels based on a boson-exchange model. In contrast to…

Nuclear Theory · Physics 2009-10-30 A. Sibirtsev , W. Cassing , G. I. Lykasov , M. V. Rzjanin

Results for the energy dependence of the elementary kaon production cross sections in proton-proton collisions are reported. Calculations are performed within an extended version of the resonance model which was used for the previous…

Nuclear Theory · Physics 2010-02-17 K. Tsushima , A. Sibirtsev , A. W. Thomas

We study $\Theta^+(1540)$ productions in kaon-nucleon ($KN$) and nucleon-nucleon ($NN$) interactions by assuming that the $\Theta^+$ is an isosinglet with $J^P = \frac12^+$. Possible $t$-channel diagrams with $K^*$ exchange are considered…

High Energy Physics - Phenomenology · Physics 2014-11-17 Yongseok Oh , Hungchong Kim , Su Houng Lee
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