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We investigate the shear viscosity of neutron star matter in the presence of an antikaon condensate. The electron and muon number densities are reduced due to the appearance of a $K^-$ condensate in neutron star matter, whereas the proton…

太阳与恒星天体物理 · 物理学 2010-04-23 Rana Nandi , Sarmistha Banik , Debades Bandyopadhyay

The model of elastic scattering amplitudes dominated by the triple (at $t=0$) pomeron pole suggested earlier is modified to confront to existing experimental data on $pp$ and $\bar pp$ total and differential cross sections at $\sqrt{s}\geq…

高能物理 - 唯象学 · 物理学 2013-06-26 E. Martynov

We analyse the production and propagation of kaons and antikaons in Ni + Ni reactions from 0.8--1.85 GeV/u within a coupled channel transport approach including the channels $BB \to K^+YN, \pi B\to K^+Y, BB \to NN K \bar{K}, \pi B\to N…

核理论 · 物理学 2011-07-19 W. Cassing , E. L. Bratkovskaya , U. Mosel , S. Teis , A. Sibirtsev

We study the elastic scattering of polarized protons from He isotopes. The central and spin-orbit parts of the optical potential are derived using the Glauber theory that can naturally take account of the breakup effect of the He isotopes.…

核理论 · 物理学 2012-10-17 K. Kaki , Y. Suzuki , R. B. Wiringa

Recently a new dark matter candidate has been proposed as a consequence of universal compact extra dimensions. It was found that to account for cosmological observations, the masses of the first Kaluza-Klein modes (and thus the approximate…

高能物理 - 唯象学 · 物理学 2008-11-26 Geraldine Servant , Tim M. P. Tait

Estimates of QED and dispersion effects on the cross section for elastic electron scattering from a 12C nucleus are provided for collision energies in the range of 120-450 MeV. While in general such corrections are smoothly varying with…

核理论 · 物理学 2021-11-11 D. H. Jakubassa-Amundsen

We construct a microscopic optical potential including breakup effects for elastic scattering of weakly-binding projectiles within the Glauber model, in which a nucleon-nucleus potential is derived by the $g$-matrix folding model. The…

核理论 · 物理学 2019-04-23 Shoya Ogawa , Ryo Horinouchi , Masakazu Toyokawa , Takuma Matsumoto

Differential production cross sections of $K^{\pm}$ mesons have been measured in $p$ + C and $p$ + Au collisions at 1.6, 2.5 and 3.5 GeV proton beam energy. At beam energies close to the production threshold, the $K^-$ multiplicity is…

The $K^-/K^+$ ratio in heavy-ion collisions at GSI is studied including the properties of the participating hadrons in hot and dense matter, paying a particular attention to the in-medium properties of antikaons at finite temperature. The…

核理论 · 物理学 2007-05-23 L. Tolos , J. Schaffner-Bielich , A. Polls , A. Ramos

The elastic $\pi N$ scattering is investigated for the $I=3/2$ channel dominated by the $\Delta(1232)$ resonance at finite baryon density, employing the effective Lagrangian approach at the tree-level Born approximation. The quark-meson…

核理论 · 物理学 2023-06-01 Hyeon-dong Han

Three precise measurements for elastic pd scattering at 135 MeV/A have been performed with the three different experimental setups. The cross sections are described well by the theoretical predictions based on modern nucleon-nucleon forces…

First results of the differential cross section in dp elastic scattering at 1.25 GeV/u measured with the HADES over a large angular range are reported. The obtained data corresponds to large transverse momenta, where a high sensitivity to…

The He-4 d elastic scattering at the momentum of 19.8 GeV/c is analyzed in the framework of the Glauber theory. The scattering amplitude was evaluated using different sets of values of the nucleon-nucleon amplitude parameters and the He-4…

核理论 · 物理学 2007-05-23 A. M. Mosallem , V. V. Uzhinskii

The production of non-phi K+K- pairs by protons of 2.83 GeV kinetic energy on C, Cu, Ag, and Au targets has been investigated using the COSY-ANKE magnetic spectrometer. The K- momentum dependence of the differential cross section has been…

Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state (EOS). Yet, compared to…

高能物理 - 实验 · 物理学 2021-08-09 CLAS Collaboration , J. Rowley , N. Compton , C. Djalali , K. Hicks , J. Price , N. Zachariou , K. P. Adhikari , W. R. Armstrong , H. Atac , L. Baashen , L. Barion , M. Bashkanov , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , L. Biondo , A. S. Biselli , M. Bondi , F. Bossu , S. Boiarinov , W. J. Briscoe , W. K. Brooks , D. Bulumulla , V. D. Burkert , D. S. Carman , J. C. Carvajal , A. Celentano , P. Chatagnon , V. Chesnokov , T. Chetry , G. Ciullo , L. Clark , P. L. Cole , M. Contalbrigo , G. Costantini , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , S. Fegan , R. Fersch , A. Filippi , A. Fradi , G. Gavalian , F. X. Girod , D. I. Glazier , A. Golubenko , R. W. Gothe , K. Griffioen , L. Guo , K. Hafidi , H. Hakobyan , M. Hattawy , T. B. Hayward , D. Heddle , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , D. Jenkins , H. S. Jo , K. Joo , D. Keller , A. Khanal , M. Khandaker , A. Kim , I. Korover , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , M. Leali , P. Lenisa , K. Livingston , I. J. D. MacGregor , D. Marchand , N. Markov , L. Marsicano , V. Mascagna , M. E. McCracken , B. McKinnon , C. McLauchlin , Z. E. Meziani , S. Migliorati , T. Mineeva , M. Mirazita , V. Mokeev , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , K. Neupane , S. Niccolai , G. Niculescu , T. R. O'Connell , M. Osipenko , A. I. Ostrovidov , P. Pandey , M. Paolone , L. L. Pappalardo , E. Pasyuk , O. Pogorelko , Y. Prok , T. Reed , M. Ripani , J. Ritman , A. Rizzo , G. Rosner , F. Sabatie , C. Salgado , A. Schmidt , R. A. Schumacher , Y. G. Sharabian , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I. I. Strakovsky , S. Strauch , R. Tyson , M. Ungaro , L. Venturelli , H. Voskanyan , A. Vossen , E. Voutier , D. Watts , K. Wei , X. Wei , R. Wishart , M. H. Wood , B. Yale , M. Yurov , J. Zhang , Z. W. Zhao

Properties of multi-antikaonic nuclei (MKN), where several numbers of $K^-$ mesons are bound, are studied in the relativistic mean-field model, combined with chiral dynamics for kaonic part of the thermodynamic potential. The density…

核理论 · 物理学 2009-04-28 Takumi Muto , Toshiki Maruyama , Toshitaka Tatsumi

We predict pp elastic differential cross section at LHC at the c.m. energy sqrt(s) = 14 TeV and momentum transfer range |t| = 0 - 10 GeV^2, which is planned to be measured by the TOTEM group. The field theory model underlying our…

高能物理 - 唯象学 · 物理学 2011-03-23 M. M. Islam , R. J. Luddy , A. V. Prokudin

We analyse pp elastic scattering data at the highest accelerator energy region (between 10 and 63 GeV) through a multiple diffraction approach. The use of Martin's formula in a model developed earlier is substituted by the introduction of a…

高能物理 - 唯象学 · 物理学 2009-10-30 A. F. Martini , M. J. Menon

The model of multiple Dirac eikonal scattering of incident proton by target-nucleus nucleons is developed, in which new expressions for the elastic $pA$-scattering amplitudes are obtained from the multiple scattering Watson series with…

核理论 · 物理学 2018-12-05 V. V. Pilipenko , V. I. Kuprikov

Cross sections for elastic Compton scattering from the deuteron were measured over the laboratory angles 35-150 deg. Tagged photons in the laboratory energy range 84-105 MeV were scattered from liquid deuterium and detected in the…