Results 51 to 60 of about 36,165 (249)

Asymptotic charges, large gauge transformations and inequivalence of different gauges in external current QED

Journal of High Energy Physics, 2019
In this paper we consider external current QED in the Coulomb gauge and in axial gauges for various spatial directions of the axis. For a non-zero electric charge of the current, we demonstrate that any two different gauges from this class correspond to ...
Wojciech Dybalski, Benedikt Wegener
doaj   +1 more source

Hawking radiation of extended objects

Journal of High Energy Physics, 2020
We compute the effects on the temperature and precise spectrum of Hawking radiation from a Schwarzschild black hole when the emitted object is taken to be spatially extended.
George Johnson, John March-Russell
doaj   +1 more source

Nonperturbative effects in gluodynamics at T ≥ Tc

Physics Letters B, 1995
Abstract Contributions to gluon thermodynamics at temperature T > 0 due to a non-perturbative background field are calculated. The free energy is written as a double series in 1 N c and the strong coupling gs. The leading order contribution due to gluon loops in the nonperturbative background field contains explicitly the expectation ...
Yu.A Simonov, Hans-Jürgen Pirner, H. G. Dosch   +2 more
openaire   +2 more sources

Interaction of Wilson loops in confining vacuum [PDF]

, 2002
Nonperturbative and perturbative interaction mechanisms of Wilson loops in gluodynamics are studied within the background field formalism. The first one operates when distance between minimal surfaces of the loops is small and may be important for sea ...
A. B. Kaidalov, A. Bialas, A. Di Giacomo, A. Di Giacomo, A. Kramer, A. Mueller, A. Y. Dubin, B. S. De Witt, B. S. De Witt, E. A. Kuraev, F. E. Low, G. Chew, H. G. Dosch, H. G. Dosch, H. G. Dosch, H. G. Dosch, J. Honerkamp, K. G. Wilson, L. F. Abbott, L. Lukaszuk, M. E. Peskin, N. Nikolaev, N. Nikolaev, O. Nachtmann, S. Nussinov, S. V. Ivanov, S. V. Ivanov, V. Gribov, V. I. Shevchenko, V. I. Shevchenko, V. I. Shevchenko, Y. A. Simonov, Y. A. Simonov, Y. A. Simonov, Y. A. Simonov, Ya. Ya. Balitsky, Yu. A. Simonov, Yu. A. Simonov   +37 more
core   +4 more sources

States of low energy in the Schwinger effect

Journal of High Energy Physics, 2023
States of low energy in cosmology minimise the energy density when smeared in a chosen time interval. We extend such construction to generic homogeneous (possibly anisotropic) particle creation settings.
Álvaro Álvarez-Domínguez, Luis J. Garay, Mercedes Martín-Benito, Rita B. Neves   +3 more
doaj   +1 more source

Nonperturbative and perturbative aspects of photo- and electroproduction of vector mesons [PDF]

, 2006
We discuss various aspects of vector meson production, first analysing the interplay between perturbative and nonperturbative aspects of the QCD calculation.
A. Aktas, A. Donnachie, A. Donnachie, A. Donnachie, A. Donnachie, A. Donnachie, A. Donnachie, A. Giacomo Di, A.D. Martin, B. Blaettel, B.H. Denby, B.Z. Kopeliovich, B.Z. Kopeliovich, C. Adloff, C. Adloff, C. Adloff, C. Adloff, E. Ferreira, E. Ferreira, E. Gotsman, E. Gotsman, E. Gotsman, E. Iancu, E. Martynov, G. Dosch, G. Kulzinger, G.P. Lepage, H. Kowalski, H. Kowalski, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, H.G. Dosch, J. Ashman, J. Bartels, J. Breitweg, J. Breitweg, J. Breitweg, J. Breitweg, J. Breitweg, J. Busenitz, J.J. Aubert, J.R. Forshaw, J.R. Forshaw, K. Golec-Biernat, K. Golec-Biernat, L. Frankfurt, L. Frankfurt, M. Arneodo, M. Bauer, M. Bauer, M. Binkley, M. Derrick, M. Derrick, M. Derrick, M. D’Elia, M.G. Ryskin, M.G. Ryskin, M.R. Adams, O. Nachtmann, P. Amaudruz, R. Fiore, R.M. Egloff, S. Aid, S. Chekanov, S. Chekanov, S. Chekanov, S.J. Brodsky, S.J. Brodsky, W.D. Shambroom   +74 more
core   +3 more sources

Combinatorics of Boundaries in String Theory [PDF]

, 1994
We investigate the possibility that stringy nonperturbative effects appear as holes in the world-sheet. We focus on the case of Dirichlet string theory, which we argue should be formulated differently than in previous work, and we find that the effects ...
A. Cohen, A. Cohen, A. Cohen, B. Grinstein, D. J. Gross, D. Lewellen, E. Brézin, E. F. Corrigan, G. Parisi, J. Atick, J. Cardy, J. Dai, J. H. Schwarz, J. Liu, Joseph Polchinski, M. B. Green, M. B. Green, M. B. Green, M. B. Green, M. B. Green, M. B. Green, M. Li, M. R. Douglas, M. R. Douglas, N. Ishibashi, P. Ginsparg, R. Leigh, S. Shenker, W. Fischler, W. Fischler, W. Siegel   +30 more
core   +3 more sources

Instanton effects in quark form factor and quark-quark scattering at high energy

, 2004
The nonperturbative effects in the high-energy processes involving strongly interacting particles are studied within the instanton liquid model of the QCD vacuum (ILM) by using the Wilson integral framework.
't Hooft, A.E. Dorokhov, Andrei, Anikin, Balitsky, Balitsky, Barbieri, Bassetto, Baulieu, Belitsky, Belokurov, Beneke, Beneke, Bonciani, Bozzi, Brandt, Brandt, Callan, Catani, Cherednikov, Collins, Collins, Cornwall, Curci, D'Elia, Dahmen, Diakonov, Dokshitzer, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dorokhov, Dotsenko, Ermolaev, Ermolaev, Ermolaev, Fadin, Fishbane, Frenkel, Frenkel, Gatheral, Gellas, Hasenfratz, I.O. Cherednikov, Ivanov, Ivanov, Jackiw, Karanikas, Kharzeev, Kochelev, Korchemskaya, Korchemskaya, Korchemsky, Korchemsky, Korchemsky, Korchemsky, Korchemsky, Korchemsky, Kuraev, Landshoff, Low, Magnea, Magnea, Makeenko, Mastrolia, Meggiolaro, Mikhailov, Moch, Morris, Mueller, Mueller, Nachtmann, Nachtmann, Nowak, Nussinov, Parisi, Petronzio, Poggio, Polyakov, Qiu, Ringwald, Schrempp, Schrempp, Schäfer, Sen, Shifman, Shirkov, Shuryak, Shuryak, Simula, Stefanis, Sudakov, Zakharov   +97 more
core   +1 more source

Nonperturbative effects on radiative energy loss of heavy quarks [PDF]

Journal of High Energy Physics, 2020
Abstract The radiative energy loss of fast partons traveling through the quark-gluon plasma (QGP) is commonly studied within perturbative QCD (pQCD). Nonperturbative (NP) effects, which are expected to become important near the critical temperature, have been much less investigated.
Ralf Rapp, Shuai Y.F. Liu, Shuai Y.F. Liu   +2 more
openaire   +4 more sources

Sequestering in String Compactifications

, 2010
We study the mediation of supersymmetry breaking in string compactifications whose moduli are stabilized by nonperturbative effects. We begin with a critical review of arguments for sequestering in supergravity and in string theory.
Berg, Marcus, Marsh, David, McAllister, Liam, Pajer, Enrico   +3 more
core   +1 more source