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  • 1990-1994  (30)
  • 1975-1979  (33)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Erratum: "The properties of the electromagnetic missile'' [J. Appl. Phys. 66, 4025 (1989)] (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 3047-3047 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347203
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  • 2
    Electronic Resource
    Electronic Resource
    The resonant circular array of electrically short elements (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 431-439 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Different resonant distributions of current in circular arrays with N=60, 72, and 90 elements are investigated theoretically with the method of symmetrical components and a two-term representation of current in each element. The arrays studied have only one driven element. The remarkable results—which are displayed in a sequence of graphs—indicate that the relative currents in the elements can be distributed in triplets, triplets alternating with singlets, two independent sets of singlets, or one set of singlets. The driving-point impedance of this last distribution is a pure resistance, the Q of the 90-element array is over 30 000, and the half-power beamwidth of each of the 90 sharp peaks in the power pattern is 2°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346839
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  • 3
    Electronic Resource
    Electronic Resource
    Completely solvable models of the nonlinear Boltzmann equation I. Case of three velocities (1990)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 31 (1990), S. 3003-3029 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: In one space and one time dimension, a class of models of the nonlinear Boltzmann equation is presented that is exactly solvable for all initial conditions. The models have three velocity components and the following desirable properties: (a) conservation of the number of particles; (b) energy conservation; (c) nonlinearity; (d) positivity of distribution functions; and (e) unique equilibrium state (for any given density), which is approached as t→∞. These models are very rich in structure, and some of their simple properties are studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.528954
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  • 4
    Electronic Resource
    Electronic Resource
    High-energy, large-momentum-transfer processes: The N-rung ladder diagram of cursive-phi3 theory (1991)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 32 (1991), S. 1619-1637 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The asymptotic form of the amplitude for the N-rung ladder diagram in cursive-phi3 theory is calculated in the limit s(very-much-greater-than)||t||(very-much-greater-than)m2. The result is proportional to s−1||t||−N+1 times a homogeneous polynomial of degree 2N−2 in ln s and ln||t||. It is not an analytic function of s and t, although the first N+1 derivatives are continuous in the physical region. Points of nonanalyticity occur when ln||t||=γ ln s for γ= (1)/(2) , (1)/(3) ,..., 1/(N−2). The notion of reduced Symanzik functions is introduced. With the aid of these reduced Symanzik functions, a generating function is derived for the leading logarithms of all ladder diagrams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529275
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  • 5
    Electronic Resource
    Electronic Resource
    Impact picture predictions for 538-1538-1538-1andpp elastic scattering at CERN collider, FNAL collider, LHC and SSC (1992)
    Springer
    The European physical journal 53 (1992), S. 538-538 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625917
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  • 6
    Electronic Resource
    Electronic Resource
    Radiated energy loss due to beamstrahlung in high-energy electron-positron linear colliders (1992)
    Springer
    The European physical journal 53 (1992), S. 479-483 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the recently discovered property of independent photon emissions at fixed impact distance, an integro-differential equation is set up to give the radiated energy due to beamstrahlung to all orders in the expansion parameter ;L b/ℓ c . HereL b is the bunch length and ℓ c is the coherence length. This integro-differential equation is solved for both the Klein-Gordon case and the physically important Dirac case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625908
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  • 7
    Electronic Resource
    Electronic Resource
    Parameters in the electroweak theory (1992)
    Springer
    The European physical journal 55 (1992), S. 585-591 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract One of the major differences between electroweak theory and the better understood quantum electrodynamics is the appearance of quadratic divergences. We discuss this issue using point-splitting regularization. It is shown that these quadratic divergences vanish if a certain mass relation is satisfied. The relation is linear in the squares of all the masses of the theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01561295
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  • 8
    Electronic Resource
    Electronic Resource
    Parameters in the electroweak theory (1992)
    Springer
    The European physical journal 55 (1992), S. 569-583 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This series of papers deals with the problem of finding relations between the parameters of the Standard Model of Glashow, Weinberg and Salam. In this first paper, the method of point splitting, suitably modified, is proposed as a useful regularization. When applied to quantum electrodynamics, this point-split regularization is indeed found to have desirable properties. More specifically, to one loop, the photon is shown to remain massless and the photon-photon scattering amplitude gauge invariant. In the following papers, this point-split regularization is applied to the electroweak theory. In the second paper, a first mass relation is obtained from the quadratic divergences. In the third paper, a second mass relation is found from the Higgs interactions. From these two relations, the masses of the Higgs boson and the top quark are determined theoretically for the Standard Model asm H =190GeV andm t =120GeV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01561294
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  • 9
    Electronic Resource
    Electronic Resource
    Transverse distribution effects in beamstrahlung (1993)
    Springer
    The European physical journal 58 (1993), S. 279-284 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Beamstrahlung is studied for bunches with densities that are transversely non-uniform. By treating an interesting special case analytically, one elicits the consequences of the new stationary phase conditions. Focusing effects are found to be relatively unimportant on the global radiated rate. Results are compared with the previously known case of uniform cylindrical bunches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01560346
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  • 10
    Electronic Resource
    Electronic Resource
    Parameters in the electroweak theory (1992)
    Springer
    The European physical journal 55 (1992), S. 593-604 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From theeeH coupling in the electroweak theory, it is found that the one-loop correction is finite (i.e., not logarithmically divergent) when a certain quadratic mass relation is satisfied. When this relation is used together with the one given previously, and the lepton masses are neglected compared with those of theW and theZ, it is found that $$m_H^2 = 9m_Z^2 - 6m_W^2 $$ .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01561296
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