Mostrando 941 - 960 Resultados de 1,262 Para Buscar '"Compton"', tiempo de consulta: 0.45s Limitar resultados
  1. 941
    “…We present a preliminary study of the production of a light Higgs boson with a mass between 120 and 160 GeV in photon-photon collisions at a Compton collider. The event generator for the backgrounds to a Higgs signal due to bbbar and ccbar heavy quark pair production in polarized Gamma-Gamma collisions is based on a complete next-to-leading order (NLO) perturbative QCD calculation. …”
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  2. 942
    “…Inverse Compton scattering provides means to generate low-divergence partially coherent quasi-monochromatic, i.e. synchrotron-like, X-ray radiation on a laboratory scale. …”
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  3. 943
    por Kabuss,Eva-Maria
    Publicado 2011
    “…The main topics include a study of Primakoff reactions, generalised parton distributions via deeply virtual Compton scattering and transverse momentum dependent distributions in Drell-Yan processes in the pion scattering off polarised protons. …”
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  4. 944
    por Wollny, H
    Publicado 2011
    “…A major part of the future COMPASS program is dedicated to the study of Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) to investigate the nucleon structure through Generalized Parton Distributions (GPD). …”
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  5. 945
    por D'Hose, Nicole
    Publicado 2009
    “…The high energies available at CERN, and the option of using either positive or negative polarized muon beams, make the fixed-target COMPASS set-up a unique place for studying GPDs, through Deeply Virtual Compton Scattering (DVCS). A GPD program is part of the Medium and Long Term Plans at COMPASS. …”
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  6. 946
    por Burtin, Etienne
    Publicado 2009
    “…The high energies available at CERN and the option of using either positive or negative polarized muon beams make the xed-target COMPASS set-up a unique place for studying GPDs through Deeply Virtual Compton Scattering (DVCS). The impact of a one-year dedicated run is examined. …”
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  7. 947
    “…The results give a weighted average of 2.72 ~ 0.04 Kin agreement with the most recent data at higher frequencies and constrain possible Compton distorsions to less than 5%.…”
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  8. 948
    por Dahmen, H D, Steiner, F
    Publicado 1974
    “…Saturating the multiparticle states in the unitarity relation for virtual Compton scattering by two-particle states consisting of an infinite set of high mass vector mesons and a nucleon leads to a non- linear integral equation the solution of which determines the behaviour in the scaling limit and the non-forward scaling functions for deep inelastic scattering. (4 refs).…”
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  9. 949
    por Nowak, Wolf-Dieter
    Publicado 2015
    “…Recent COMPASS results are shown on transverse target-spin asymmetries in hard exclusive ρ0 production and their interpretation in terms of a phenomenological model as indication for chiral-odd, transverse GPDs is discussed. For deeply virtual Compton scattering, it is briefly outlined how to access GPDs and projections are shown for future COMPASS measurements.…”
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  10. 950
    por İnan, S C, Kisselev, A V
    Publicado 2021
    “…We have estimated the sensitivity to the anomalous couplings of the $\gamma\gamma\gamma Z$ vertex in the γγ → $\gamma\gamma\rightarrow\gamma Z$ scattering of the Compton backscattered photons at the CLIC. Both polarized and unpolarized collisions at the $e^+e^-$ energies 1500 GeV and 3000 GeV are addressed, and anomalous contributions to helicity amplitudes are derived. …”
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  11. 951
    “…These results can in principle be used to measure the low-energy constants of the chiral Lagrangian, from lattice simulations in volumes much smaller than one pion Compton wavelength. We show that quenching has a dramatic effect on the vector correlator, which is argued to vanish to all orders, while the axial correlator appears to be a robust observable only moderately sensitive to quenching.…”
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  12. 952
    “…PRINCIPAL FINDINGS: We propose the use of anomalous diffractometry where, it is possible to obtain a real image of reciprocal space without Compton radiation and other undesirable scatterings. …”
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  13. 953
    “…The Compton cross-section, although negligible at the energies currently commonly used in MX, should be considered in dose calculations for incident energies above 20 keV. …”
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  14. 954
    por Friedrich, Jan
    Publicado 2010
    “…This offers the test of chiral perturbation theory (ChPT) in various channels: Pion Compton scattering allows to clarify the long-standing question of the pion polarisabilities, single neutral pion production is related to the chiral anomaly, and for the two-pion production cross sections exist as yet untested ChPT predictions.…”
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  15. 955
    por Colantoni, M
    Publicado 2007
    “…This initial run has been devoted mostly to the measurement of the pion electric ($\bar{\alpha_{\pi}}$) and magnetic ($\bar{\beta_{pi}}$) polarizabilities via the inverse Compton scattering. The preliminary results of $\bar{\alpha_{\pi}}$ and $\bar{\beta_{\pi}}$ from the 2004 pion beam data taking are presented.…”
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  16. 956
    por Heinsius, F
    Publicado 2006
    “…They can be probed in hard exclusive meson scattering and deeply virtual Compton scattering (DVCS). This paper presents the required modifications of the COMPASS experiment for the DVCS measurement. …”
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  17. 957
    por Lin, Po-Ju
    Publicado 2022
    “…At COMPASS, GPDs are investigated via exclusive processes including Deeply Virtual Compton Scattering (DVCS) and Hard Exclusive Meson Production (HEMP) in the Bjorken variable coverage of the sea-quark domain. …”
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  18. 958
    por Busto, J
    Publicado 2000
    “…The detector used, a 1 m/sup 3/ T.P.C. surrounded by an anti-Compton scintillator, is running at the Bugey nuclear plant. …”
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  19. 959
    por Magnon, Alain
    Publicado 2009
    “…The proposals to study the Generalised Parton Distribution functions via measurements of Deeply Virtual Compton Scattering and the Transverse Momentum Dependent distributions via measurements of the Drell–Yan process are outlined.…”
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  20. 960
    por Pitol, Sergio, 1933-2018
    Publicado 2002
    Tabla de Contenidos: “…Cumbres borrascoas / [Emily Brontë] -- Jane Austen y su trozo de marfil -- Charles Dickens -- Grandes esperanzas / [Charles Dickens] -- Los papeles de Aspern / [Henry James] -- Conrad, nuestro contemporáneo -- Conrad, Marlow, Kurtz -- Flush [Virginia Woolf] -- Las excentricidades del Cardenal Pirelli / [Ronald Firbank] -- La señorita Compton-Burnett -- Waugh -- El infierno circular de Flann O'Brien.…”
    Libro
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