Characteristic peak structures were observed in the measured neutron spectra, especially for light nuclei. First Measurement Of The Muon Anti Neutrino Charged Current Quasielastic Double Differential Cross Section (Springer Theses)|Joseph Grange, Notes on the sun dance of the Sarsi|Pliny Earle Goddard, Wayang: A History of Chinese Opera in Singapore|National Archives, Proceedings of a Council in Plymouth Church, Brooklyn, New York, for the Installation of the Rev. The analyzed data correspond to an integrated luminosity of 19.7[Formula: see text]. Measurements of the differential and double-differential Drell-Yan cross sections in the dielectron and dimuon channels are presented. Since most of the faster electrons are scattered into the forward direction, the maximum shows that the angle between the scattered and ejected electrons for most of the collision processes is And the analysis of the reaction channels including the sequential and simultaneous emission . The entrance and exit apertures of the hemisphere are both centered on The differential cross section and its value normalized to the total inclusive W boson production cross section are measured over the rapidity range |yW|<2.5. , the voltages on the inner and outer hemispheres are given by The integrated cross section in a restricted phase space is σ = (1.11 ± 0.18) × 10 − 38 cm 2 . The apparatus has been used to measure the triple differential cross-sections for the electron-impact double excitation of helium [123, 124], for the electron impact ionization of Argon [115] and H2 [114]. gF/(+GaKo$qneLWDrQ#;5\S(\$q'LM9bYJX9N;hHO_e;>`Y"/'J:I~> Show more. The data sample of proton-proton collisions recorded with the CMS detector at the . The CEM high voltages are supplied by two ORTEC 5 kV suppliers. A proton beam was pro- Together, these models given an ion pair and projectile kinetic energy as inputs allow the user to select the particle species produced in the ion collision and the energy and direction of each secondary particle born in the collision. Vacuum pressure is displayed by a Pfeiffer PKR 251 ion gauge connected to a TC 600 controller. As an experimental confirmation of our results, elastic differential cross section measurements of He, Ar, H2, and CH4 for 250 eV incident electrons were taken and compared with the previous results. stream Comparatively speaking, far fewer studies have been carried out both experimentally and theoretically using intermediate-to-high energies ( Based on the statistical theory of light nucleus reactions (STLN), the description of the complicated emission processes of proton and light composite charged particles are further improved through considering the effects of Coulomb barriers both in incident and different outgoing reaction channels. Found insideThis book provides a comprehensive and up-to-date introduction to the fundamental theory and applications of slow-neutron scattering. As features of electron impact ionization, these two types of electrons are indistinguishable. I. H2,”, N. F. Mott, “The collision between two electrons,”, S. P. Khare and B. L. Moiseiwitsch, “The angular distribution of electrons elastically scattered by helium atoms and by hydrogen molecules,”, R. W. LaBahn and J. Callaway, “Distortion effects in the elastic scattering of 100- to 400-eV electrons from helium,”, R. W. LaBahn and J. Callaway, “Differential cross sections for the elastic scattering of 1- to 95-eV electrons from helium,”, D. P. Dewangan and H. R. J. Walters, “The elastic scattering of electrons and positrons by helium and neon: the distorted-wave second Born approximation,”, R. S. Oberoi and R. K. Nesbet, “Inelastic scattering of electrons by helium,”, K. H. Winters, C. D. Clark, B. H. Bransden, and J. P. Coleman, “The use of second order potentials in the theory of scattering of charged particles by atoms. S.W. The analyzer was adjusted to detect 10–225 eV outgoing electrons after collision. The double differential scattering cross section d 2 σ d Ω d E (see Figure 9.2) is the intensity (number of quanta, neutrons, or photons) scattered per second in a solid angle dΩ in an energy domain between E and E + dE. The analyzed data correspond to an integrated luminosity of 19.7[Formula: see text].  mm, and the mean radius is is held at ground potential and so the voltage of the element - "Double-differential inclusive charged-current νμ cross sections on hydrocarbon in MINERvA at Eν ∼3.5 GeV" The experimentally measured absolute double differential cross sections (DDCS) are compared with the continuum distorted wave-eikonal initial state (CDW-EIS) model and the first Born approximation including correct boundary conditions (CB1). We used He, Ar, H2, and CH4 targets in order to understand the ionization mechanisms of atomic and molecular systems. @L`YKUJNGBP\poR=_;Dl'P(T The literature for experimental investigations is strongly concentrated on grand total (elastic and inelastic) cross section measurements [95–98]. ). Emphasis is placed on well-measured observables in fully reconstructed final states, as well as on the study of correlations between the top-quark pair system and additional jet radiation . The nozzle is 2.5 mm from the interaction region and is a single capillary type with a diameter of 1 mm. The MINERvA Experiment (Main Injector Experiment v A interaction) [1] is a highly segmented detector of neutrinos, able to record events with high precision (over than thirteen million event in a four year run), using the NuMI Beam ... The gun and analyzers are shielded by aluminum boxes grounded at the same point with the chamber and the electronic control panels. cross sections, we then carry out double energy differential and pentuple energy and angle differential cross section calculations for helium at an incident electron energy of 106 eV. We have measured double differential cross sections for both primary and secondary electrons. II. This is in close analogy to INS, although the different atom species contribute differently to the S(Q,E) for neutrons and X-rays. All parts of the electron spectrometer are constructed from dural and brass, which are nonmagnetic and easy to process. Found inside – Page 1... AND Pb UNDER 558 - MeV - PROTON IRRADIATION Sherwin M. Beck and Clemans A. Powell Langley Research Center SUMMARY The double differential cross sections ... In this paper, we use one of the analyzers for measuring the cross-sections. A broad maximum around 60° was seen in the results of our study as well as in the data of Shyn and Sharp [46, 47]. /Width 77 Theoretically, elastic electron-CH4 cross-sections were done by Dhal et al. . However, our interpretation of the observed interference pattern at . The results of the measurement are discussed and compared to theoretical predictions in Sect. In the first case, the formalism for phonons is well established. Experimental data are from [1]. Molecular hydrogen is the most fundamental of all electron-diatomic molecule scattering systems and has been the subject of numerous experimental and theoretical studies of collision physics. Absolute and normalised single- and double-differential cross-sections are measured at particle and parton level as a function of various kinematic variables. The single-differential cross section as a function of mll is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1% is achieved at low mll. 2. /Filter [/ASCII85Decode /LZWDecode ] 1. Author links open overlay panel Ling Li a Zhu An a Jingjun Zhu a Weiping Lin a Scott Williams b. double differential scattering cross-section. and Theoretical framework Using the first Born approximation and Fermi pseudo-potential [1], the double differential scattering cross-section of light water at a particular temperature T can be In coincidence mode, we used an ORTEC 566 time-amplitude converter (TAC) and the ORTEC Maestro PC card. Please share how this access benefits you. Both of those structures have been well examined by several experiments at different collision energies. The DDCS results for 250 eV incident electrons on a methane molecule are given in Figure 19. In recent years, an intensive effort of experimental and theoretical work has been devoted to the study of ionization differential cross-sections of atoms and molecules through electron impact. Neutron-production double-differential cross-sections on carbon-carbon and oxygen-carbon reactions with incident heavy-ion energy of 290 MeV/nucleon were measured by time-of-flight method using liquid organic scintillators.By use of a detection system specialized for low-energy neutrons, the cross-sections were obtained in a wide energy region from several hundred MeV down to 0.6 MeV for . The experiments described here were performed in Afyon with a recently modified version of an electron spectrometer originally developed in Newcastle [119–122]. Double differential cross section of fragment production. Absolute measurements of bremsstrahlung double differential cross sections of C and Al atoms by 5-25 keV electron impact. 8. Partial and total ionization cross sections of hydrogen fluoride molecule are determined from the ionization threshold to high energy (5 KeV) by using a modified Jain-Khare semiempirical approach. Double differential cross-sections (DDCS) can be obtained by measuring the energy and angular distributions of one of the two outgoing electrons with an electron analyzer. [2-4] are confined to energy, angular distribution, collision differential cross section and collision cross section integrated over energy,and confirm some elementary features of the theory of double photon Compton effect. 8. In the process, where a photon of energy Ei, wavevector kI, and polarization i, is scattered into a final state of energy Ef, wavevector kf , and polarization f , and the electron system goes from the initial state |I> to the final state |F>, we obtain: The sum over the initial and final states is the thermodynamic average, and PI corresponds to the thermal population of the initial state. The differential angular range of the scattered particle at angle θ is the solid angle element dΩ = sin θ dθ dφ. For example, the electrons of 70 eV knock outer sphere, while the electrons of 25, 30, 45 eV knock on the inner sphere, and so the electrons of 50 eV achieve the exit aperture (to detector). Normalization and extrapolation of experimental data,”, F. W. Byron Jr. and C. J. Joachain, “Elastic scattering of electrons and positrons by atomic hydrogen and helium at intermediate and high energies,”, T. T. Gien, “Elastic scattering of electrons by helium at intermediate energies,”, I. Bray, D. V. Fursa, and I. E. McCarthy, “Calculation of electron-helium scattering at 40 eV,”, D. V. Fursa and I. Bray, “Calculation of electron-helium scattering,”, R. Biswas and C. Sinha, “Double- and triple-differential cross sections for electron-impact ionization of helium,”, R. Biswas and C. Sinha, “Double- and single-differential and total ionization cross sections for electron-impact ionization of a helium atom,”, S. Brajamani, N. R. Singh, M. Babuyaima, and P. S. Mazumdar, “Cold cardioplegia and the K, I. E. McCarthy and X. Zhang, “Distorted-wave Born approximation for electron-helium double differential ionisation cross sections,”, J. Röder, H. Ehrhardt, I. Bray, and D. V. Fursa, “Absolute double differential cross sections for electron-impact ionization of helium,”, R. Müller-Fiedler, K. Jung, and H. Ehrhardt, “Double differential cross sections for electron impact ionisation of helium,”, T. W. Shyn and W. E. Sharp, “Doubly differential cross sections of secondary electrons ejected from gases by electron impact: 50-300 eV on helium,”, R. D. DuBois and M. E. Rudd, “Absolute doubly differential cross sections for ejection of secondary electrons from gases by electron impact. The shape of DCSs in both cases had a strong agreement with the present data between 30° and 130°. The scattering and absorptiondifferentialcross sections for single photonComptonscat- First Measurement Of The Muon Anti Neutrino Charged Current Quasielastic Double Differential Cross Section (Springer Theses)|Joseph Grange, Shakespeare-Lexicon: A Complete Dictionary of All the English Words, Phrases and Constructions in the Works of the Poet (V.1 ) (1874-75)|Alexander Schmidt, The Complete Life of Rama: Based on Valmiki's iRamayanai and the Earliest Oral Traditions|Vanamali . 100-500-eV electrons on neon, argon, molecular hydrogen, and molecular nitrogen,”, M. E. Rudd and R. D. DuBois, “Absolute doubly differential cross sections for ejection of secondary electrons from gases by electron impact. determines the energy of the electron beam. you hear it right we provide a discount on each referral and that is amazing. the double-differential cross sections is presented in Section 6, and the assessment of the sys-tematic uncertainties is described in Section 7. Following energy selection in the space of the deflector, the electrons are detected by a Photonis-CEM 7018 C WL channel electron multiplier (CEM). In this study, we measured the energy and angular distributions of ejected electrons for the ionization of the simplest molecule, H2. We measured differential cross-sections (DCS) and double differential cross-sections at 250 eV electron impact energy. This is a consequence of the binary character of the collision. All noble atoms show parallel structure in the elastic differential cross section at low energies. [44].  mm. In addition the fusion excitation functions of these systems have been measured below and around the barrier. Mosley, Joseph, King Of Dreams: Read-Along Catherine McCafferty The Faraday cup is mounted on a concentric disc and rotated around the interaction region. Measurements of the double-differential π± production cross-section in the range of momentum 0.5 GeV/c⩽p⩽8.0 GeV/c and angle 0.025 rad⩽θ⩽0.25 rad in interactions of charged pions on beryllium, carbon, aluminium, copper, tin, tantalum and lead are presented. Furthermore, the energy- and angle-dependent DCSs of H2 by proton impact have been presented in several papers [64, 65]. The ratio (R) of double to single ionization cross sections is stud- Also, DCS calculations have been made using various improved methods [11–22]. Furthermore, we present differential double to single capture cross section ratios as a function of the scattering angle. … The differential cross section and its value normalized to the total inclusive W boson production cross section are measured over the rapidity range |yW|<2.5. Double Differential Cross-Sections for Electron Impact Ionization of Atoms and Molecules MevlutDogan,MelikeUlu,ZehraNurOzer,MuratYavuz,andGulinBozkurt Department of Physics, e-COL Laboratory, Afyon Kocatepe University, Afyonkarahisar, Turkey Correspondence should be addressed to Mevlut Dogan; mevlutdogan@hotmail.com The Tungsten Hairpin cathode, which is housed in the first element First, the theoretical and experimental studies of elastic DCS and DDCS for Helium, Argon, and Hydrogen molecules and Methane molecules are reviewed. Differential cross sections for the neutron-induced gamma-ray production from natural chromium have been measured for incident neutron energies between 0.2 and 20.0 MeV. The measurement uses events in which a W boson decays to a neutrino and either a muon or an electron. The integrated yield for gamma rays of energies greater than 1.6 MeV with higher resolution in the neutron energy is also presented. The experimental results are compared with the Evaluated Nuclear Data File (ENDF). 34 references. Show more. Nuclear Data Evaluation Nuclear Reaction Interactions between particle and nucleus And also the apparatus has the capability to measure differential cross-sections of the ionization of the atoms and molecules with electron impact [125]. Mevlut Dogan, Melike Ulu, Zehra Nur Ozer, Murat Yavuz, Gulin Bozkurt, "Double Differential Cross-Sections for Electron Impact Ionization of Atoms and Molecules", Journal of Spectroscopy, vol. /Length 459 II. Measurements of the differential and double-differential Drell-Yan cross sections in the dielectron and dimuon channels are presented. 7. Normalized double-differential cross sections for top quark pair ([Formula: see text]) production are measured in pp collisions at a centre-of-mass energy of 8[Formula: see text] with the CMS experiment at the LHC. This is subject of the so-called generalised hydrodynamic theory3. �D�J�����Z��@M�!�tA=�ӻ��L��KN�$�.L�1NJ&������R�Q"�-��O The measurements obtained from our study for these two energies were compared with the data of Shyn and Sharp (1981), and looking at the results of DDCS, there was a broad general agreement. The [99] in the 75–750 eV energy range. One of the most common methods to derive this generalisation is to introduce the concept of memory functions. The analysis is based on proton-proton collisions collected by the CMS experiment at the LHC at a centre-of-ma … European Synchrotron Radiation Facility - 71, avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France. II. Miller TM(1), Townsend LW. The agreement between the present and previous data was good. As an experimental confirmation of our results, elastic differential cross section measurements of methane for 200 eV incident electrons were taken and compared with the previous results [72, 90, 99, 100] (Figure 18(a)). You can refer them to us First Measurement Of The Muon Anti Neutrino Charged Current Quasielastic Double Differential Cross Section (Springer Theses) Joseph Grange and get 10% on each order you place with us. Nowadays, a very limited set of double differential carbon fragmentation cross sections are being measured in the energy range used in hadron therapy (40 to 400 MeV/nucleon). The purpose fo this book is to present a comprehensive account of the physical concepts and theoretical approaches developed for the study of the dynamical properties of liquids (or more generally, of high-density fluids) at a microscopic ...

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