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Based on the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\chi^{2}$ analyses are performed for elastic scattering, DR, and fusion cross section…

核理论 · 物理学 2009-11-11 W. Y. So , S. W. Hong , B. T. Kim , T. Udagawa

The optical model potentials for nucleon-nucleus elastic scattering at $65$~MeV are calculated for $^{12}$C, $^{16}$O, $^{28}$Si, $^{40}$Ca, $^{56}$Fe, $^{90}$Zr and $^{208}$Pb in first order multiple scattering theory, following the…

核理论 · 物理学 2009-09-25 C. R. Chinn , Ch. Elster , R. M. Thaler , S. P. Weppner

Optical beams propagating through air acquire phase distortions from turbulent fluctuations in the refractive index. While these distortions are usually deleterious to propagation, beams reflected in a turbulent medium can undergo a local…

光学 · 物理学 2023-07-19 W. Nelson , J. P. Palastro , C. Wu , C. C. Davis

We investigate the $^9$Be + $^{208}$Pb elastic scattering, breakup and fusion at energies around the Coulomb barrier. The three processes are described simultaneously, with identical conditions of calculations. The $^{9}$Be nucleus is…

核理论 · 物理学 2016-06-22 M. S. Hussein , P. Descouvemont , L. F. Canto

The differential scattering cross section for charged relativistic particles moving parallel close to the crystalline plane of atoms was obtained. The rainbow scattering effect in the approximation of continuous potential was demonstrated.…

高能物理 - 理论 · 物理学 2023-12-05 N. F. Shul'ga , V. D. Koriukina

The Feshbach theory of the optical potential naturally leads to a microscopic description of scattering in terms of the many-body self-energy. We consider a recent calculation of this quantity for 16O and study the possibility of applying…

核理论 · 物理学 2009-11-10 C. Barbieri , B. K. Jennings

The extensive elastic $^{16}$O+$^{12}$C scattering data measured at low energies show consistently an oscillating enhancement of the elastic cross section at backward angles that is difficult to describe within the conventional optical…

核理论 · 物理学 2018-08-29 Nguyen Tri Toan Phuc , Nguyen Hoang Phuc , Dao T. Khoa

We experimentally investigate the back-scattering properties of an array of atoms that is evanescently coupled to an optical nanofiber in the strongly non-paraxial regime. We observe that the power and the polarization of the back-scattered…

原子物理 · 物理学 2014-04-01 D. Reitz , C. Sayrin , B. Albrecht , I. Mazets , R. Mitsch , P. Schneeweiss , A. Rauschenbeutel

We report on the first ground-based measurement of the relativistic beaming effect (aka Doppler boosting). We observed the beaming effect in the detached, non-interacting eclipsing double white dwarf (WD) binary NLTT 11748. Our observations…

太阳与恒星天体物理 · 物理学 2015-05-20 Avi Shporer , David L. Kaplan , Justin D. R. Steinfadt , Lars Bildsten , Steve B. Howell , Tsevi Mazeh

We present a single-scattering formalism for incoherent resonant light scattering by dilute quantum gas systems such as the atomic-trap Bose-Einstein condensates. We show that resonant scattering gives access to more information than the…

凝聚态物理 · 物理学 2009-09-25 Eddy Timmermans , Paolo Tommasini

We present the first measurement of squeezed-state entanglement between the twin beams produced in an Optical Parametric Oscillator (OPO) operating above threshold. Besides the usual squeezing in the intensity difference between the twin…

量子物理 · 物理学 2009-11-11 A. S. Villar , L. S. Cruz , K. N. Cassemiro , M. Martinelli , P. Nussenzveig

We investigate the potential of mutual scattering, i.e., light scattering with multiple properly phased incident beams, as a method to extract structural information from inside an opaque object. In particular, we study how sensitively the…

光学 · 物理学 2023-06-19 Minh Duy Truong , Ad Lagendijk , Willem L. Vos

For volume reflection process in a bent crystal, exact analytic expressions for positively- and negatively-charged particle trajectories are obtained within a model of parabolic continuous potential in each interplanar interval, with the…

经典物理 · 物理学 2016-11-25 M. V. Bondarenco

A novel probe of D-brane dynamics is via scattering of a high energy ripple traveling along an attached string. The inelastic processes in which the D-brane is excited through emission of an additional attached string is considered.…

高能物理 - 理论 · 物理学 2016-08-24 Steven B. Giddings

The series of calculations of differential cross sections and analyzing powers (Ay) of the elastic proton scattering on isotopes 6He and 8He was presented in the framework of the theory of Glauber multiple diffraction scattering. The…

核理论 · 物理学 2013-04-23 E. Ibraeva , O. Imambekov , A. Dzhazairov-Kahramanov

The mode dynamics of a random laser is investigated in experiment and theory. The laser consists of a ZnCdO/ZnO multiple quantum well with air-holes that provide the necessary feedback. Time-resolved measurements reveal multimode spectra…

光学 · 物理学 2015-10-09 M. Höfner , H. -J. Wünsche , F. Henneberger

We theoretically study dynamical excitonic condensates occurring in bilayers with an imposed chemical potential difference and in photodoped semiconductors. We show that optical spectroscopy can experimentally identify phase-trapped and…

强关联电子 · 物理学 2024-10-30 Alexander Osterkorn , Yuta Murakami , Tatsuya Kaneko , Zhiyuan Sun , Andrew J. Millis , Denis Golež

We perform an initial study of DUNE's sensitivity to enhanced neutrino polarizability within models of light scalar mediators. We identify two possible signatures of polarizability due to neutrino scattering on electrons and due to coherent…

高能物理 - 唯象学 · 物理学 2025-08-26 Sam Carey , Pedro Machado , Gil Paz , Alexey A. Petrov , Alexandre Sousa , Michele Tammaro , Jure Zupan

Analyses using simplified coupled-channels models have been unable to describe the shape of the previously measured fusion barrier distribution for the doubly magic $^{16}$O+$^{208}$Pb system. This problem was investigated by re-measuring…

The structure of the extremely proton-rich nucleus $^{11}_{~8}$O$_3$, the mirror of the two-neutron halo nucleus $^{11}_{~3}$Li$_8$, has been studied experimentally for the first time. Following two-neutron knockout reactions with a…