Tesis sobre el tema "Double charge exchange reaction"
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Hessey, Nigel P. "The pion double charge exchange reaction on ¹⁸O at 50 MeV". Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24682.
Texto completoScience, Faculty of
Physics and Astronomy, Department of
Graduate
MAGANA, VSEVOLODOVNA RUSLAN IDELFONSO. "Transfer reactions, neutrinoless double beta decay and double charge exchange". Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/930766.
Texto completoBondì, Mariangela. "Heavy-ion double charge exchange reactions as tools for 0bb decays. The 40Ca(18O,18Ne)40Ar reaction at 270 MeV by using MAGNEX". Doctoral thesis, Università di Catania, 2015. http://hdl.handle.net/10761/3759.
Texto completoBellone, Jessica Ilaria. "Determination of the link between heavy ion charge exchange reactions and single and double beta decay matrix elements". Doctoral thesis, Università di Catania, 2019. http://hdl.handle.net/10761/4119.
Texto completoPINNA, FEDERICO. "Study and Production of Special Targets for DCE Reactions with 0vbb-Decay Final States in the NUMEN Experiment". Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2729322.
Texto completoCAPIROSSI, VITTORIA. "Study of the characteristics of the NUMEN Project targets to optimize the energy resolution in the measurements of the Double Charge Exchange reactions cross section". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2897010.
Texto completoMüllers, Andreas [Verfasser]. "Production of antihydrogen via double charge exchange / Andreas Müllers". Mainz : Universitätsbibliothek Mainz, 2013. http://d-nb.info/1033733016/34.
Texto completoKabutz, Rudolf T. "The (p, n) charge-exchange reaction on ⁹⁰Zr at intermediate energies". Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17385.
Texto completoUsing the Time-of-Flight facility at the National Accelerator Centre at Faure, the (p, n) charge-exchange reaction has been studied at intermediate energies of 120, 160 and 200 MeV, and at angles of 0°, 2° and 4°. In this work the data collected for the ⁹⁰Zr target will be presented. The influence on the data from slow neutrons due to previous pulses is discussed and the best manner of removing them from the spectra is recommended. It is shown how the background cosmic rays can be utilised to measure the intrinsic resolution of the detectors and to obtain an estimate of the neutron energy threshold. The differential cross-sections for the states corresponding to Fermi and Gamow-Teller transitions were extracted from the time spectra. The sum of the strength of all the discrete Gamow-Teller states was determined and compared to the Ikeda Sum Rule. It was found that only 50% of the sum could be accounted for in the discrete states. An overview of the theory that has been developed to extract Gamow-Teller strengths from the (p, n) cross-sections is given. Some of the theoretical models that have been used to describe the ⁹⁰Zr(p, n)⁹⁰ Nb reaction and account for the missing Gamow-Teller strength are briefly discussed.
Fong, Wilson. "Inclusive pion double charge exchange in light p-shell nuclei at intermediate energies". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/26854.
Texto completoLatacz, Barbara Maria. "Study of the antihydrogen atom and ion production via charge exchange reaction on positronium". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS266/document.
Texto completoThe main goal of the GBAR collaboration is to measure the Gravitational Behaviour of Antihydrogen at Rest. It is done by measuring the classical free fall of neutral antihydrogen, which is a direct test of the weak equivalence principle for antimatter. The first step of the experiment is to produce the antihydrogen ion and catch it in a Paul trap, where it can be cooled to μK temperature using ground state Raman sideband sympathetic cooling. The μK temperature corresponds to particle velocity in the order of 1 m/s. Once such velocity is reached, the antihydrogen ion can be neutralised and starts to fall. This allows reaching 1 % precision on the measurement of the gravitational acceleration g for antimatter with about 1500 events. Later, it would be possible to reach 10⁻⁵ - 10⁻⁶ precision by measuring the gravitational quantum states of cold antihydrogen. However, in order to measure the free fall, firstly the antihydrogen ion has to be produced. It is formed in the charge exchange reactions between antiproton/antihydrogen and positronium. Positronium and antihydrogen atoms can be either in a ground state or in an excited state. An experimental study of the cross section measurement for these two reactions is described in the presented thesis. The antihydrogen atom and ion production takes place in a cavity. The formation of one antihydrogen ion in one beam crossing requires about 5x10⁶ antiprotons/bunch and a few 10¹¹ Ps/cm⁻³ positronium density inside the cavity, which is produced with a beam containing 5x10¹⁰ positrons per bunch. The production of such intense beams with required properties is a challenging task. First, the development of the positron source is described. The GBAR positron source is based on a 9 MeV linear electron accelerator. The relatively low energy was chosen to avoid activation of the environment. The electron beam is incident on a tungsten target where positrons are created from Bremsstrahlung radiation (gammas) through the pair creation process. Some of the created positrons undergo a further diffusion in the tungsten moderator reducing their energy to about 3 eV. The particles are re-accelerated to about 53 eV energy and are adiabatically transported to the next stage of the experiment. Presently, the measured positron flux is at the level of 6x10⁷ e⁺/s, which is a few times higher than intensities reached with radioactive sources. Then, the thesis features a short description of the antiproton/proton beam preparations, finalised with a chapter about the expected antihydrogen atom and ion production yield. After the reaction, antiproton, antihydrogen atom, and ion beams are guided to the detection system. It is made to allow for detection from 1 to a few thousand antihydrogen atoms, a single antihydrogen ion and all 5x10⁶ antiprotons. It is especially challenging because antiproton annihilation creates a lot of secondary particles which may disturb measurements of single antihydrogen atoms and ions. The main part of the Thesis is the description of the expected background for the antihydrogen atom and ion detection. Additionally, the detection system allows measuring the cross sections for the symmetric reactions of a hydrogen atom and ion production through charge exchange between protons and positronium. The antihydrogen ion production part of the experiment was fully installed at CERN in 2018. The first tests with antiprotons from the ELENA decelerator were done. Currently, the experiment is being commissioned with positrons and protons, in order to perform the hydrogen atom and ion formation. The optimisation of the ion production with matter will help to be fully prepared for the next antiproton beam time in 2021
Gunawardhana, Kihanduwage N. Gipson Stephen L. "Chemistry, electrochemistry and electron transfer induced reactions of cobalt complexes with fluorinated ligands". Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5114.
Texto completoIn the abstract "CF3COCo(CO)3PPh3, CF3, Bu3SnH, CF3H, [Co(CO)4]-, [Co(CO)3(PPh3)]-, C2F4, C6F5Co(CO)3PPh3, C6F5, C6F5H, C6F5D, CF3COCo(CO)3PPh3, and Co-C(acyl)" are subscript. Includes bibliographical references (p. 205-213).
Mecker, Christoph J. Chemistry Faculty of Science UNSW. "The synthesis of advanced " special pair " models for the photosynthetic reaction centre". Awarded by:University of New South Wales. School of Chemistry, 2000. http://handle.unsw.edu.au/1959.4/17835.
Texto completoHoefler, Christoph. "Preparation of electron donor and acceptor molecules for porphyrin derivatization". PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4317.
Texto completoWycoff, Donald E. "Catalysis of interfacial transfer of photo-generated electrons : a study of four molybdenum-sulfur complex ions mediating electron transfer across a colloidal semiconductor-liquid interface /". free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164554.
Texto completoCooper, Ian Blake. "Photosynthetic water oxidation and proton-coupled electron transfer". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26707.
Texto completoCommittee Chair: Bridgette Barry; Committee Member: El-Sayed, Mostafa; Committee Member: Fahrni, Christoph; Committee Member: Kröger, Nils; Committee Member: McCarty, Nael. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Garrison, Shana A. "SYNTHESIS AND PHOTOPHYSICAL CHARACTERIZATION OF PORPHYRIN-CONTAINING SUPRAMOLECULAR SYSTEMS: STRUCTURAL ISSUES FOR PORPHYRIN PHOTOPHYSICS AND ELECTRON TRANSFER". Akron, OH : University of Akron, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1123616344.
Texto completo"August, 2005." Title from electronic dissertation title page (viewed 09/24/2005). Advisor, David A. Modarelli; Committee members, Matthew Espe, Michael Taschner, Chrys Wesdemiotis, Stephanie Lopina; Department Chair, David Perry; Dean of the College, Charles B. Monroe; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
Scholl, Clemens [Verfasser]. "High-resolution study of the Gamow-Teller strength distribution in the light nuclei 9B and 13N using the (3He,t) charge-exchange reaction at 420 MeV beam energy / Clemens Scholl". Köln : Universitäts- und Stadtbibliothek Köln, 2010. http://d-nb.info/1013831578/34.
Texto completoSoper, Jake D. "Reactions at nitrogenous ligands on oxidizing group 8 metal centers /". Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8589.
Texto completoGrégoire, Brian. "Relation Composition-Structure des Hydroxydes Doubles Lamellaires : Effets de la charge du feuillet et de la nature de l'anion interfoliaire". Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0154/document.
Texto completoThis manuscript is devoted to the comprehension of the relationship between the composition of Layered Double Hydroxides (LDH) and their structural properties. The first part of this manuscript is focalized on the formation and the structural properties of these materials. The influence of the cationic nature (MgII, NiII, CoII ; AlIII, FeIII) and their stoichiometries within the layer (MII/MIII E [2 ; 10]) constitutes the main axis of these investigations. The study of the hydrolytic behavior of a solution containing a mixture of divalent and trivalent cations as a function of their relative proportion allowed to propose a topotactic mechanism of formation of LDH phases. Moreover, it has been showed that the composition range is solely dependent on the nature of the cations. Thus, electrostatic models were designed to rationalize and predict the composition range as a function of the cationic nature. The second part is concerned with the properties of the interlayer domain. A joint study, coupling vibrational spectroscopies (Infrared and Raman) and X-ray diffraction allowed a detailed description of the influence of the cations and their stoichiometries on the organization of the interlayer anions (Cl-, CO32-, NO3-, ClO4-, aminoacids). The role of the interlayer water has also been investigated. Concerning hybrid organo-minerals, it has been showed that the layer charge dictates the orientation of the interlayered aminoacids, and consequently, their reactivity toward the formation of the peptide bonds. The enantioselective properties of the interlayer domain are highlighted toward the formation of peptides
Salama, Farid. "Etude de la photoexcitation dans l'ultra-violet lointain des halogènes piégés en matrice de gaz rare à basse température et étude de leur ionisation simple et double par impact protonique en phase gazeuse". Paris 6, 1986. http://www.theses.fr/1986PA066213.
Texto completoThakore, Vaibhav. "Nonlinear dynamic modeling, simulation and characterization of the mesoscale neuron-electrode interface". Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5529.
Texto completoPh.D.
Doctorate
Physics
Sciences
Physics
Mecker, Christoph J. "The synthesis of advanced "special pair" models for the photosynthetic reaction centre /". 2000. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20011128.150754/index.html.
Texto completoWallace, Brett B. "Electron transfer in an artificial photosynthetic reaction center : simulations using quantum Monte Carlo wavepackets". Phd thesis, 2005. http://hdl.handle.net/1885/151485.
Texto completoWang, Hsueh-Fen y 王雪芬. "Asymmetrical Reaction to US Stock Return News:Evidence from Major Stock Markets and Foreign Exchange Markets Based on a Bivariate Double-Threshold Model". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/93877783489200777591.
Texto completo逢甲大學
財務金融學所
92
The existence of international financial market linkage is a very important issue to the modern asset pricing theory. Numerous studies have been documented the return and volatility series of several international equity markets are asymmetrical functions of past information from U.S. equity market. Recently, the double-threshold model has been evolved as a preferred approach to examine that effect. However, none of previous work has been investigated asymmetric reaction of national stock return and foreign exchange market return to the U.S. news simultaneously. By utilizing a multivariate double-threshold GARCH model, this study examines whether the co-movements of return and volatility series among national stock market and foreign exchange market in each underlying sample countries including Taiwan, Japan, Canada, U.K., Germany and Australia react asymmetrically to the U.S. stock-return news. Consistence with the finding of the market integration literature, the empirical result of this study further suggests the transmission of bad news from U.S. stock-return news indeed cause a large magnitude of fluctuation in return and volatility series of sample national stock and foreign exchange markets than which of good news.