829 research outputs found

    SHORT-RANGE N-N INTERACTION IN THE CHIRAL BAG MODEL

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    Physics, MultidisciplinarySCI(E)0ARTICLE3329-3371

    A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector

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    A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at s=13TeV collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state XH→qq¯′bb¯ is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the XH→qq¯′bb¯ resonance. © 2018 The Author(s)WosScopu

    A search for resonances decaying into a Higgs boson and a new particle X in the XH -> qqbb final state with the ATLAS detector

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    A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb(-1) of proton-proton collision data at root s = 13 TeV collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle Xis assumed to decay to a pair of light quarks, and the fully hadronic final state XH -> q (q) over bar 'b (b) over bar is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the XH -> q (q) over bar 'b (b) over bar resonance. (c) 2018 The Author(s). Published by Elsevier B.V

    A Search for Resonances Decaying Into a Higgs Boson and a New Particle X in the Xh › Qqbb Final State With the Atlas Detector

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    A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at s=13TeV collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state XH→qq¯′bb¯ is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the XH→qq¯′bb¯ resonance. © 2018 The Author(s

    Uniquely factorizable entire functions

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    AbstractLet f(z) be a transcendental entire function and n ⩾ 3 a prime number. Then (f(w) − aw) ∘ zn and ((w − a) f(w)) ∘ zn are uniquely factorizable (UF) for each complex number a, except for a countable set. Furthermore, if f(z) is prime and f(z) has infinitely many zeros such that almost all zeros are in ¦arg z − π¦ < ω (0 < ω < 12π), then fn is UF

    ROTATIONAL AND SPIN-ORBIT PREDISSOCIATION OF THE NeXH(X~2Π,X=O,S)Ne\cdot XH (\tilde{X}^{2} \Pi, X=O,S) VAN DER WAALS COMPLEXES

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    a^{a}V. A. Mandelshtam, H. S. Taylor, V. Ryaboy and N. Moiseyev, Phys, Rev. A 50 2764 (1994) b^{b}S. M. Cyblulski, R. R. Toczylowski, H.-S. Lee and A. B. McCoy, J. Chem. Phys., 113, 5736 (2000) c^{c}H.-S. Lee, A. B. McCoy, R. R. Toczylowski and S. M. Cyblulski, J. Chem. Phys., 113, 9549 (2000)Author Institution: Department of Chemistry, The Ohio State University; James Franck Institute, University of ChicagoThe rotational and spin-orbit predissociation dynamics of NeXH(X~2Π,X=O,S)Ne\cdot XH (\tilde{X}^{2}\Pi, X=O,S) complexes is investigated theoretically using the stabilization method of Mandelshtam etal.aet al.^{a} using ab initio potential surfaces to describe the NeXHNe\cdot XH interactions.b,cinteractions.^{b,c} The calculations show large variations in the lifetimes of the NeXHNe\cdot XH complexes within narrow ranges of energy. In particular, we found a strong dependence of the lifetime on the parity of the state and the projection of the angular momentum onto the internuclear axis. Comparisons with available experimental data are made and the results of this purely ab inito treatment are found to be in good agreement with the experimental resonance energies and lifetimes

    CALCULATION OF THE TORSIONAL-ROTATIONAL ENERGY LEVELS OF CH2DXHCH_{2}DXH AND CHD2XHCHD_{2}XH

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    Author Institution: Department of Physics, Texas Tech UniversityThe torsional-rotational energy levels of CH2DXHCH_{2}DXH and CHD2XHCHD_{2}XH have been calculated, where X is either O or S atoms, using an internal axis approach (IAM) for the asymmetric-asymmetric molecules. The internal axis transformation removes the large Coriolis interaction from HTRH_{TR} and places it in the effective HTH_{T}. However, this transformation introduces additional terms into HTRH_{TR} that depend explicitly upon \propto. Solution for the energy levels is considered at three stages. First, the solution of the transformed or effective HTH_{T} in a free rotor basis. Second, inclusion of the rotational terms from HROH_{R}^{O} (\propto-independent). And third, inclusion of the terms from HTRH_{TR}^{\prime} including the \propto-dependent terms quadratic in the P1P_{1} and the small \propto-dependent terms from the residual Coriolis interaction. Results from the theoretical formulation and from numerical calculations for the above molecules will be presented

    Chargino contribution to the rare decay b→ssd̄

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    AbstractThe rare decay b→ssd̄ is studied in the supersymmetric Standard Model by considering the contribution from the chargino box diagrams. We find that this contribution amounts to 10−9 in the branching ratio

    Estimating magic numbers larger than 126 by Fermi-Yang Liming method

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    The Fermi-Yang Liming method is followed and developed to estimate new magic numbers in nuclei with a Woods-Saxon density function. The calculated results predict that the magic number next to 126 should be around 184 and 258.Physics, MultidisciplinarySCI(E)中国科学引文数据库(CSCD)0ARTICLE4447-4503

    [Rb/(3-x)(NH/4)/xH(SO/4)/2晶體的結構相變與介電性質之研究

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    [[abstract]]摘 要 本論文透過偏光顯微鏡與阻抗分析儀來觀測與分析我們所成長的[Rb3-x(NH4)xH(SO4)2]晶體(x=0.83、1.35、1.67、1.85)。我們首先得到此晶體的光學性質隨NH4的含量而變化,且發現升溫過程晶體的中間相很明顯,由DSC實驗結果發現四種混晶的第二個相變溫度隨NH4含量的增加而降低,但細部的變化複雜而不能由一簡單法則歸納。 藉由導電係數的研究我們得到晶體的導電性可模擬成一RC並聯的等效電路,且隨溫度的上升晶體電阻值降低、導電係數升高。在室溫相交流電頻率為100Hz∼4MHz時,晶體的活化能隨混晶比例的變化,有些許變化,但並非很大。在室溫相,活化能會隨著電場頻率增加而減小,在高溫相,活化能相同,換言之在高溫相,晶體的活化能與頻率無關。此外室溫相時晶體內的導電H離子是穿過兩端不對稱的位能障,而中間相與高溫相則是對稱的位能障,且高溫相時H離子的傳導有類似直流的性質。
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