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相关论文: Dissociation dynamics in the dissociative electron…

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We present experiments demonstrating trajectory-dependent electronic excitations at low ion velocities, where ions are expected to primarily interact with delocalized valence electrons. The energy loss of H$^+$, H$_2 ^+$, He$^+$, B$^+$,…

材料科学 · 物理学 2020-12-03 Svenja Lohmann , Radek Holeňák , Daniel Primetzhofer

It is shown that adsorption energy at semiconductor surfaces critically depends on the charge transfer to or from the adsorbed species. For the processes without the charge transfer, such as molecular adsorption of closed shell systems, the…

材料科学 · 物理学 2013-08-23 Paweł Kempisty , Paweł Strak , Konrad Sakowski , Stanisław Krukowski

We study the dissociation of H$_2$$^+$ in uv laser pulses by solving the non-Born-Oppenheimer time-dependent Schr\"{o}dinger equation as a function of the photon energy $\omega$ of the pulse. Significant enhancements of the dissociation…

原子与分子团簇 · 物理学 2014-07-22 Kunlong Liu , Qianguang Li , Pengfei Lan , Peixiang Lu

We present a simple method for determination of absolute vibrational numbering of isolated near dissociation levels in diatomic molecules, usually observed in cold physics experiments. The method is based on the isotope shift and works even…

化学物理 · 物理学 2020-02-19 Asen Pashov , Pawel Kowalczyk , Wlodzimierz Jastrzebski

Low-energy E < 2 eV electron elastic collisions with Ge, Sn and Pb atoms yield stable excited Ge-, Sn- and Pb- anions. The recent Regge-pole methodology is used with Thomas-Fermi type potential incorporating the crucial core-polarization…

原子物理 · 物理学 2009-09-21 A. Z. Msezane , Z. Felfli , D. Sokolovski

The cross section for coherent photonuclear production of J/$\psi$ is presented as a function of the electromagnetic dissociation (EMD) of Pb. The measurement is performed with the ALICE detector in ultra-peripheral Pb-Pb collisions at a…

核实验 · 物理学 2023-11-28 ALICE Collaboration

We found resonantly excited precession motions of a three-dimensional vortex core in soft magnetic nanospheres and controllable precession frequency with the sphere diameter 2R, as studied by micromagnetic numerical and analytical…

介观与纳米尺度物理 · 物理学 2015-03-04 Sang-Koog Kim , Myoung-Woo Yoo , Jehyun Lee , Ha-Youn Lee , Jae-Hyeok Lee , Yuri Gaididei , Volodymyr P. Kravchuk , Denis D. Sheka

We study a modification of the five-dimensional description of dynamical electro-weak symmetry breaking inspired by the AdS/CFT correspondence. Conformal symmetry is broken in the low-energy region near the IR brane by a power-law departure…

高能物理 - 唯象学 · 物理学 2008-11-26 Marco Fabbrichesi , Maurizio Piai , Luca Vecchi

Recent experiments have shown the likely appearance of coherent BEC atom-molecule oscillations in the vicinity of a Feshbach resonance. In addition, a new loss mechanism was observed, whereby the loss of atoms from the BEC is inversely…

软凝聚态物质 · 物理学 2007-05-23 Nir Gov

The ion-molecule reactions $\text{D}_2^++\text{NH}_3$ and $\text{D}_2^++\text{ND}_3$ are studied at low collision energies ($E_{\text{coll}}$ from zero to $\sim k_\textrm{B}\cdot 50\,\text{K}$), with the $\text{D}_2^+$ ions in the ground…

化学物理 · 物理学 2024-03-05 Raphaël Hahn , David Schlander , Valentina Zhelyazkova , Frédéric Merkt

Accurate $EF{}^1\Sigma^+_g-X{}^1\Sigma^+_g$ transition energies in molecular hydrogen were determined for transitions originating from levels with highly-excited vibrational quantum number, $v=11$, in the ground electronic state.…

原子物理 · 物理学 2016-09-23 T. Madhu Trivikram , M. L. Niu , P. Wcisło , W. Ubachs , E. J. Salumbides

Experimental cross sections for m-fold photodetachment (m=2-5) of oxygen anions via K-shell excitation and ionization were measured in the photon-energy range of 525-1500 eV using the photon-ion merged-beams technique at a synchrotron light…

The first measurement of neutron emission in electromagnetic dissociation of $^{208}$Pb nuclei at the LHC is presented. The measurement is performed using the neutron Zero Degree Calorimeters of the ALICE experiment, which detect neutral…

核实验 · 物理学 2016-09-13 ALICE Collaboration

The results of investigations of the dissociation of a $^{14}$N nucleus of momentum 2.86~A~GeV/c in photo-emulsion are presented. The main characteristics of these reactions, that is the cross sections for various fragmentation channels,…

By combining electron energy-loss spectroscopy and state-of-the-art computational methods, we were able to provide an extensive picture of the excitonic processes in $1T$-HfS$_2$. The results differ significantly from the properties of the…

介观与纳米尺度物理 · 物理学 2018-10-17 Carsten Habenicht , Lorenzo Sponza , Roman Schuster , Martin Knupfer , Bernd Büchner

We investigate how vibration affects molecular photoemission dynamics, through simulations on two-dimension asymmetric model molecules including the electronic and nuclear motions in a fully correlated way. We show that a slight anisotropy…

Dissociative electron attachment (DEA) shows functional group-dependent site selectivity in the $H^-$ ion channel. In this context, the thiol functional group has yet to be studied in great detail, although this functional group carries…

化学物理 · 物理学 2024-04-17 Sukanta Das , Vaibhav S. Prabhudesai

Signatures of multi-keV LMN dielectronic resonances in highly-charged 3d^n ions of tungsten were detected in the intensity ratios of extreme-ultraviolet magnetic-dipole lines within ground configurations. The measurements were performed…

原子物理 · 物理学 2013-10-15 Yu. Ralchenko , J. D. Gillaspy

The dynamics following the photoexcitation of Na and Li atoms located on the surface of helium nanodroplets has been investigated in a joint experimental and theoretical study. Photoelectron spectroscopy has revealed that excitation of the…

原子与分子团簇 · 物理学 2017-08-23 Alberto Hernando , Manuel Barranco , Martí Pi , Evgeniy Loginov , Marina Langlet , Marcel Drabbels
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