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The characteristic properties of the hot nuclear matter existing at the time of fragment formation in the multifragmentation events produced in the reaction $^{64}$Zn + $^{112}$Sn at 40 MeV/nucleon are studied. A kinematical focusing method…

New almost-degenerate charged and neutral heavy leptons are a feature of a number of theories of physics beyond the Standard Model. The prospects for detecting these at the Large Hadron Collider using a time-of-flight technique are…

高能物理 - 唯象学 · 物理学 2010-02-03 B. C. Allanach , C. M. Harris , M. A. Parker , P. Richardson , B. R. Webber

The nonlinear space-charge effects in a high intensity or high brightness accelerator can have a significant impact on the beam properties through the accelerator. These effects are included in the accelerator design via self-consistent…

加速器物理 · 物理学 2023-02-22 Ji Qiang

The isoscaling properties of isotopically resolved projectile residues from peripheral collisions of 86Kr (25 MeV/nucleon), 64Ni (25 MeV/nucleon) and 136Xe (20 MeV/nucleon) beams on various target pairs are employed to probe the symmetry…

核实验 · 物理学 2009-11-11 G. A. Souliotis , D. V. Shetty , A. Keksis , E. Bell , M. Jandel , M. Veselsky , S. J. Yennello

We report on the assessment of the imaging performance of CITIUS -- a high-speed X-ray detector developed for the large-scale synchrotron radiation facility SPring-8-II -- for heavy charged particles and neutrons. To characterize the…

仪器与探测器 · 物理学 2026-05-25 Yoshio Kamiya , Haruki Nishino , Takaki Hatsui

Multi-nucleon transfer reaction between 136Xe beam and 198Pt target was performed using the VAMOS++ spectrometer at GANIL to study the structure of n-rich nuclei around N=126. Unambiguous charge state identification was obtained by…

We report here an empirical formalism for predicting the cross-sections of neutron-rich nuclei produced in fragmentation of relativistic \b{eta}-unstable neutron-rich projectiles in the mid-mass region. The formalism is based on the…

核理论 · 物理学 2020-12-04 Debasis Bhowmick , Siddhartha Dechoudhury , Vaishali Naik , Alok Chakrabarti

Discrimination between electron and nuclear recoil events in a liquid argon scintillation detector has been demonstrated with simulations by using the differences in the scintillation photon time distribution between these classes of…

天体物理学 · 物理学 2007-05-23 M. G. Boulay , A. Hime

Observations of extrasolar planets using Integral Field Spectroscopy (IFS), if coupled with an extreme Adaptive Optics system and analyzed with a Simultaneous Differential Imaging technique (SDI), are a powerful tool to detect and…

天体物理学 · 物理学 2009-11-11 A. Berton , R. G. Gratton , M. Feldt , T. Henning , S. Desidera , M. Turatto , H. M. Schmid , R. Waters

A method is presented to precisely reconstruct charge spectra with pixel detectors using binary hit information of individual pixels. The method is independent of the charge information provided by the readout circuitry and has a resolution…

仪器与探测器 · 物理学 2017-02-17 David-Leon Pohl , Jens Janssen , Tomasz Hemperek , Fabian Hügging , Norbert Wermes

Possibilities of discriminating neutrons and gamma rays in the AGATA gamma-ray tracking spectrometer have been investigated with the aim of reducing the background due to inelastic scattering of neutrons in the high-purity germanium…

核实验 · 物理学 2009-09-09 A. Ataç , A. Kaşkaş , S. Akkoyun , M. Şenyiğit , T. Hüyük , S. O. Kara , J. Nyberg

Multifragmentation of quasiprojectiles was studied in reactions of 28Si beam with 112Sn and 124Sn targets at projectile energies 30 and 50 MeV/nucleon. The quasiprojectile observables were reconstructed using isotopically identified charged…

A system of two microchannel-plate detectors has been successfully implemented for tracking projectile-fragmentation beams. The detectors provide interaction positions, angles, and arrival times of ions at the reaction target. The current…

We present the design of a Faraday cup-like charged particle detector in a four quadrant configuration aimed at facilitating the alignment of low-intensity beams of exotic particles. The device is capable of assessing the current on the…

Peripheral collisions with radioactive heavy-ion beams at relativistic energies are discussed as an innovative approach for probing the transient regime experienced by fissile systems evolving towards quasi-equilibrium. A dedicated…

核实验 · 物理学 2014-11-20 C. Schmitt , K. -H. Schmidt , A. Kelić , A. Heinz , B. Jurado , P. N. Nadtochy

The present study deals with the extraction of the symmetry energy from heavy-ion collisions at intermediate energies. Using the isospin quantum molecular dynamical (IQMD) model, the dependence of the sum of the charge number for fragments…

核理论 · 物理学 2012-12-04 S. Kumar , Y. G. Ma

Secondary reactions induced by relativistic beams in inverse kinematics in a thick target are relevant in several fields of experimental physics and technology, like secondary radioactive beams, production of exotic nuclei close to the…

核实验 · 物理学 2011-07-19 P. Napolitani , L. Tassan-Got , P. Armbruster , M. Bernas

Whilst adversarial attack detection has received considerable attention, it remains a fundamentally challenging problem from two perspectives. First, while threat models can be well-defined, attacker strategies may still vary widely within…

计算机视觉与模式识别 · 计算机科学 2021-11-04 Nathan Drenkow , Neil Fendley , Philippe Burlina

To investigate GRBs in depth, it is crucial to develop an effective method for identifying GRBs accurately. Current criteria, e.g., onboard blind search, ground blind search, and target search, are limited by manually set thresholds and…

We study the problem of distributed distinct element estimation, where $\alpha$ servers each receive a subset of a universe $[n]$ and aim to compute a $(1+\varepsilon)$-approximation to the number of distinct elements using minimal…

数据结构与算法 · 计算机科学 2025-07-01 Ilias Diakonikolas , Daniel M. Kane , Jasper C. H. Lee , Thanasis Pittas , David P. Woodruff , Samson Zhou