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The measurement of parameters that describe kinetic processes is important in the study of molecular interactions. It enables a deeper understanding of the physical mechanisms underlying how different biological entities interact with each…

Quantum Physics · Physics 2022-05-16 K. T. Mpofu , C. Lee , G. E. M. Maguire , H. G. Kruger , M. S. Tame

This paper reviews methods which can be used to detect binaries involving low- and intermediate-mass stars, with special emphasis on evolved systems. Besides the traditional methods involving radial-velocity or photometric monitoring, the…

Astrophysics · Physics 2009-06-23 A. Jorissen , A. Frankowski

We present a new technique for detecting chirality in the gas phase: Chiral molecules are spatially aligned in three-dimensions by a moderately strong elliptically-polarized laser field. The momentum distributions of the charged fragments,…

Chemical Physics · Physics 2021-02-18 Cem Saribal , Alec Owens , Andrey Yachmenev , Jochen Küpper

We propose a highly efficient atomically-resolved mode of electron magnetic chiral dichroism. This method exploits the recently introduced orbital angular momentum spectrometer to analyze the inelastically scattered electrons allowing for…

We simulate the fragmentation processes in the {$\alpha$~$+$~Au~} collisions at a bombarding energy of 5 GeV/u using the simplified RQMD approach plus the statistical decay model. We find from the simulation that the angular-distribution of…

Nuclear Theory · Physics 2009-10-28 Tomoyuki Maruyama

A time-dependent approach for the kinetic energy release (KER) spectrum is developed for a fragmentation of a diatomic molecule after an electronic decay process, e.g. Auger process. It allows one to simulate the time-resolved spectra and…

Atomic Physics · Physics 2012-03-20 Ying-Chih Chiang , Frank Otto , Hans-Dieter Meyer , Lorenz S. Cederbaum

Mirror dark matter is a dissipative and self-interacting multiparticle dark matter candidate which can explain the DAMA, CoGeNT and CRESST-II direct detection experiments. This explanation requires photon-mirror photon kinetic mixing of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 R. Foot

A highly-efficient method for optical detection and separation of left- and right-handed chiral molecules is presented. The method utilizes a closed-loop three-state system in which the population dynamics depends on the phases of the three…

Quantum Physics · Physics 2019-05-08 Nikolay V. Vitanov , Michael Drewsen

In this paper we propose a novel deep learning-based algorithm for biomedical image segmentation which uses a sequential attention mechanism able to shift the focus of attention across the image in a selective way, allowing subareas which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Shohei Hayashi , Bisser Raytchev , Toru Tamaki , Kazufumi Kaneda

Angular distribution measurements of $^2$H($^7$Be,$^7$Be)$^2$H and $^2$H($^7$Be,$^8$B)$n$ reactions at $E_{c.m.}\sim$~4.5 MeV were performed to extract the astrophysical $S_{17}(0)$ factor using the asymptotic normalization coefficient…

Using a spectrum obtained under moderate (of order 1 arcsecond) seeing, we show that the double nucleus in M31 produces a strong kinematic signature even though the individual components are not spatially resolved. The signature consists of…

Astrophysics · Physics 2016-06-08 J. Gerssen , K. Kuijken , M. R. Merrifield

Kinetic models are essential for describing how molecules interact in a variety of biochemical processes. The estimation of a model's kinetic parameters by experiment enables researchers to understand how pathogens, such as viruses,…

Quantum Physics · Physics 2022-03-02 K. T. Mpofu , C. Lee , G. E. M. Maguire , H. G. Kruger , M. S. Tame

Accurate knowledge of the response of the detection system is very crucial for unambiguous interpretation of the experimental data. A simulation code has been developed using the Monte Carlo technique involving 3-body kinematics for the…

Instrumentation and Detectors · Physics 2019-01-14 S. K. Pandit , K. Mahata , A. Shrivastava , V. V. Parkar , K. Ramachandran

Event cameras are a new type of brain-inspired visual sensor with advantages such as high dynamic range and high temporal resolution. The geometric calibration of event cameras, which involves determining their intrinsic and extrinsic…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Zibin Liu , Shunkun Liang , Banglei Guan , Dongcai Tan , Yang Shang , Qifeng Yu

A new nonconventional mechanism for the basic 2{\pi}-fusion reaction pn --> d+({\pi}{\pi})_0 in the energy region T_p = 1.0-1.4 GeV is suggested. The mechanism is aimed at providing a consistent explanation for the comprehensive…

Nuclear Theory · Physics 2013-02-19 M. N. Platonova , V. I. Kukulin

The concentration of a chiral solution is a key parameter in many scientific fields and industrial processes. This parameter can be estimated to high precision by exploiting circular birefringence or circular dichroism present in optically…

Quantum Physics · Physics 2022-11-08 Alexandre Belsley , Jonathan C. F. Matthews

Differential cross sections and photon beam asymmetries for the gamma p rightarrow K+ Lambda and gamma p rightarrow K+ Sigma0 reactions have been measured in the photon energy range from 1.5 GeV to 2.4 GeV and in the angular range from…

High Energy Physics - Experiment · Physics 2009-11-11 M. Sumihama

Since the 1970s, spin-selective reactions of radical pairs have been modelled theoretically by adding phenomenological rate equations to the quantum mechanical equation of motion of the radical pair spin density matrix. Here, using a…

Quantum Physics · Physics 2010-03-04 Jonathan A. Jones , Peter J. Hore

Motivated by molecular biology, there has been an upsurge of research activities in directional statistics in general and its Bayesian aspect in particular. The central distribution for the circular case is von Mises distribution which has…

Computation · Statistics 2014-06-24 Peter G. M. Forbes , Kanti V. Mardia

Two-pion photoproduction in the reaction gamma + p -> p + pi^+ + pi^- has been studied at Jefferson Lab Hall B using a circularly-polarized tagged photon beam in the energy range between 0.6 GeV and 2.3 GeV. Owing to the large angular…

Nuclear Experiment · Physics 2019-08-21 S. Strauch