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AbstractAbstract
[en] For the first time it is suggested the curve asymmetry index as a quantitative measure of an asymmetry of sunspot group area development curve, which turns out to be very useful parameter, making possible to estimate the numerical values of quantities in the analytic formula of the curve. It is established that area development curves of different groups don't too much differ one form another and have the same character, that, probably, shows the likeness in their displays. (author)
Original Title
Pokazatel' asimmetrii krivoj razavitiya ploshchadi grupp solnechnykh pyaten
Primary Subject
Source
1 fig.
Record Type
Journal Article
Journal
Izvestiya Natsional'noj Akademii Nauk Respubliki Kazakhstan. Seriya Fiziko-Matematicheskaya; ISSN 1991-346X;
; v. 4(6); p. 67-69

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Underwood, D.G.
Argonne National Lab., IL (United States). Funding organisation: USDOE, Washington, DC (United States)1995
Argonne National Lab., IL (United States). Funding organisation: USDOE, Washington, DC (United States)1995
AbstractAbstract
[en] The author presents four physics processes that have measured asymmetries at high energy. Some problems and some advantages of utilizing each in a polarimeter are discussed. For each he gives references to examples of experimental setup and data
Source
1995; 6 p; International symposia on high energy spin physics and polarization phenomena in nuclear physics; Bloomington, IN (United States); 15-22 Sep 1994; CONF-9409103--11; CONTRACT W-31109-ENG-38; Also available from OSTI as DE95004593; NTIS; US Govt. Printing Office Dep
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Report
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Conference
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Bunakov, V. E.; Kadmensky, S. G.; Kadmensky, S. S., E-mail: bunakov@vb13190.spb.edu2010
AbstractAbstract
[en] Effects of T-odd asymmetry in ternary-nuclear-fission reactions induced by polarized cold neutrons are considered within quantum theory. It is shown that the asymmetry coefficient can be expressed in terms of experimental angular distributions of third particles in reactions induced by unpolarized neutrons. The explicit form of this coefficient makes it possible to explain the difference in the magnitudes and signs of the TRI and ROT effects observed experimentally for different targets.
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Source
Copyright (c) 2010 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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AbstractAbstract
[en] New data on the tensor analyzing power Ayy of the 9Be(d, p)X reaction at an initial deuteron momentum of 5 GeV/c and a proton detection angle of 178 mrad have been obtained at the JINR Synchrophasotron. The data obtained are analyzed in the framework of an approach based on the light-front dynamics using Karmanov's relativistic deuteron wave function. It has been managed to explain the new data within the framework of our approach without invoking degrees of freedom additional to the nucleon ones, contrary to the calculations using standard nonrelativistic deuteron wave functions
[ru]
На синхрофазотроне ОИЯИ получены новые данные о векторной Ay и тензорной Ayy анализирующих способностях реакции 9Be(d, p)X при начальном импульсе дейтронов 5 ГэВ/с и угле испускания протонов 178 мрад. Экспериментальные данные о Ayy анализируются в рамках подхода, основанного на динамике светового фронта, с использованием релятивистской волновой функции дейтрона, полученной В.А. Кармановым с соавт. Показано, что в этом приближении удается объяснить полученные данные без привлечения дополнительных степеней свободы, в отличие от вычислений со стандартными нерелятивистскими волновыми функциями дейтронаOriginal Title
Izmerenie tenzornoj analiziruyushchej sposobnosti fragmentatsii relyativistskikh dejtronov kak sposob issledovaniya struktury dejtrona v dinamike svetovogo fronta
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Source
32 refs., 6 figs., 1 tab.
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Journal Article
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Gagunashvili, N., E-mail: gagunash@sunhe.jinr.ru2000
AbstractAbstract
[en] A new algorithm for extraction of asymmetries from polarized lepton-nucleon scattering data is proposed. The algorithm is stable to set-up acceptance and/or luminosity monitor acceptance variations. A statistical test for checking the data quality is proposed
Primary Subject
Source
S0168900200003351; Copyright (c) 2000 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment; ISSN 0168-9002;
; CODEN NIMAER; v. 451(3); p. 657-661

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Ohta, M.; Tatsuda, S.; Yamamoto, K.; Wada, T.; Hashizume, T.; Sumiyoshi, K.; Otsuki, K.; Kajino, T.; Koura, H.; Chiba, S.; Tachibana, T.
Proceedings of the 2007 International Conference on Nuclear Data for Science and Technology - ND 20072008
Proceedings of the 2007 International Conference on Nuclear Data for Science and Technology - ND 20072008
AbstractAbstract
[en] The systematic data on the fission fragment mass distribution for nuclei ranging from Z = 88 to 120 relevant to the r-process nucleosynthesis is constructed in a semi-empirical way. The mass distribution is estimated from the potential energy surface by means of the liquid drop model with the shell energy correction and also by referring the results in the dynamical calculation of fission paths by the Langevin equation in the three-dimensional deformation space. The results are compared with the mass asymmetric values at the saddle point driven by the extended Thomas-Fermi Struchinsky integral (ETFSI) model. In the lighter nuclei Z < 100, our results are consistent with the values of ETFSI, on the other hand in the heavier nuclei our estimation gives a larger mass asymmetry and approaches to zero due to the decrease of shell effect beyond Z > 120. (authors)
Primary Subject
Source
Bersillon, O. (ed.); Bauge, E. (ed.) (CEA-DAM, DPTA-SPN, Bruyeres-le-Chatel, 91297 Arpajon Cedex (France)); Gunsing, F. (ed.); Leray, S. (ed.) (CEA-DSM, Dapnia/SPhN, 91191 Gif-sur-Yvette Cedex (France)); Jacqmin, R. (ed.) (CEA-DEN, DER-SPRC, 13108 Saint-Paul-lez-Durance (France)); Commissariat a l'Energie Atomique - CEA-Saclay 91191 Gif-sur-Yvette Cedex (France); Organisation for Economic Co-Operation and Development, Nuclear Energy Agency - OECD/NEA, Le Seine Saint-Germain, 12 boulevard des Iles, F-92130 Issy-les-Moulineaux (France); 1422 p; ISBN 978-2-7598-0090-2;
; ISBN 978-2-7598-0091-9;
; 2008; p. 359-362; 2007 International Conference on Nuclear Data for Science and Technology - ND 2007; Nice (France); 22-27 Apr 2007; 23 refs.; Full text available on Internet at: http://dx.doi.org/10.1051/ndata:07302


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Book
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AbstractAbstract
[en] An analytical description of Fano line-shape asymmetry ratio has been presented here for a general case. It is shown that Fano line-shape becomes less asymmetric as |q| is increased and finally becomes completely symmetric in the limiting condition of q equal to infinity. Asymmetry ratios of Fano line-shapes have been calculated and are found to be in good consonance with the reported expressions for asymmetry ratio as a function of Fano parameter. Application of this derivation is also mentioned for explanation of asymmetry to symmetry transition of Fano line-shape in quantum confined silicon nanostructures. (author)
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Journal Article
Journal
Indian Journal of Physics (Online); ISSN 0974-9845;
; v. 87(1); p. 49-52

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Aleshchenko, Yu A; Kapaev, V V; Kopaev, Yu V, E-mail: kopaev@sci.lebedev.ru2011
AbstractAbstract
[en] We review our works aimed at the creation of a unipolar laser with the efficient suppression of nonradiative relaxation between the laser subbands owing to strongly asymmetric in height barriers surrounding an active element. The asymmetry of the barriers causes the existence of a lower laser subband only within a narrow region of in-plane momenta. In such a way one-phonon relaxation between the laser subbands can be significantly suppressed
Source
S0268-1242(11)58276-2; Available from http://dx.doi.org/10.1088/0268-1242/26/1/014021; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Pacific Northwest National Laboratory, Richland, WA (United States); Belle Collaboration. Funding organisation: US Department of Energy (United States)
arXiv e-print [ PDF ]2012
arXiv e-print [ PDF ]2012
AbstractAbstract
[en] We report measurements of branching fractions and time-dependent CP asymmetries in B0 → D+D- and B0 → D*±D#-+# decays using a data sample that contains (772 ± 11) x 106 BB- pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We determine the branching fractions to be Β(B0 → D+D-) = (2.12 ± 0.16 ± 0.18) x 10-4 and Β(B0 → D*±D#-+#) = (6.14 ± 0.29 ± 0.50) x 10-4. We measure CP asymmetry parameters SD#sup +#D#sup -# = -1.06-0.14+0.21 ± 0.08 and CD#sup +#D#sup -# = -0.43 ± 0.16 ± 0.05 in B0 → D+D- and AD*D = +0.06 ± 0.05 ± 0.02, SD*D = -0.78 ± 0.15 ± 0.05, CD*D = -0.01 ± 0.11 ± 0.04, ΔSD*D = -0.13 ± 0.15 ± 0.04 and ΔCD*D = +0.12 ± 0.11 ± 0.03 in B0 → D*±D#-+#, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.
Primary Subject
Source
PNNL-SA--88591; KA1201020; AC05-76RL01830; 7 pages
Record Type
Journal Article
Journal
Physical Review. D, Particles, Fields, Gravitation and Cosmology; ISSN 1550-7998;
; v. 85(9); p. 091106

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Alfs, Dominika
Bochum University (RUB) (Germany). Fakultät für Physik und Astronomie2021
Bochum University (RUB) (Germany). Fakultät für Physik und Astronomie2021
AbstractAbstract
[en] Even though a number of methods to produce polarized antiprotons has been proposed, the preparation of a sufficiently polarized antiproton beam, useful for further experiments, remains a challenge. A simple alternative would arise, if the antiproton production process results in a significant degree of polarization. Then this method could be used to prepare antiproton beams in the existing and planned antiproton facilities. The goal of the P349 antiproton polarization experiment is to investigate if antiprotons produced in a high energy proton beam collision with an unpolarized solid target via the reaction pp are polarized. A transverse polarization P of antiprotons can be extracted from a measurement of the left-right asymmetry in antiproton-proton scattering in the Coulomb-Nuclear Interference (CNI) kinematic region, where the expected analyzing power A, related to the asymmetry AP = , is well known. In the P349 experiment antiprotons were scattered on an unpolarized liquid hydrogen target and the analyzing power is A = 4,5%. Three beam times have been performed in 2014, 2015 and 2018 at the T11 beamline of the East Area at European Organization for Nuclear Research (CERN). This thesis presents the results of the 2014 and 2015 measurements together with a description of the analysis methods used. The number of collected antiproton events is 7.7 10, which is much lower than expected from estimation based on the experimental conditions and low too for a determination of a possible polarization. The reasons for a significant reduction of events are outlined, required changes in the experimental setup are summarized and proposals for a set of test measurements in order to prepare a reliable future polarization determination is given. Furthermore, a detailed simulation study that estimates the amount of statistics needed to observe a specified polarization is described.
Primary Subject
Source
2 Feb 2021; 141 p; Available from: http://dx.doi.org/10.13154/294-8040; Diss. (Dr.rer.nat.)
Record Type
Miscellaneous
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Thesis/Dissertation
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ANTIBARYONS, ANTIMATTER, ANTINUCLEI, ANTINUCLEONS, ANTIPARTICLES, BARYON-BARYON INTERACTIONS, BARYONS, BEAMS, DIMENSIONLESS NUMBERS, ELEMENTARY PARTICLES, FERMIONS, HADRON-HADRON INTERACTIONS, HADRONS, INTERACTIONS, INTERNATIONAL ORGANIZATIONS, MATTER, NUCLEI, NUCLEON BEAMS, NUCLEON-ANTINUCLEON INTERACTIONS, NUCLEONS, PARTICLE BEAMS, PARTICLE INTERACTIONS, PROTONS
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