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We study the emission from a molecular photonic cavity formed by two proximal photonic crystal defect cavities containing a small number (<3) of In(Ga)As quantum dots. Under strong excitation we observe photoluminescence from the bonding…

We compare different formalisms for the calculation of lepton pair emission in hadron-hadron collisions and discuss the consequences of the approximations inherent to each of them. Using a Lorentz-covariant and gauge-invariant formalism…

Nuclear Theory · Physics 2015-06-26 Jianming Zhang , Rahma Tabti , Charles Gale , Kevin Haglin

We present a novel approach for generating collider-quality electron bunches using a plasma photoinjector. The approach leverages recently developed techniques for the spatiotemporal control of laser pulses to produce a moving ionization…

A systematic investigation of hard thermal photon spectra from central ultra-relativistic heavy ion collisions is presented with emphasis on the effects of bremsstrahlung processes in the quark-gluon plasma (QGP). Bremsstrahlung photon…

Nuclear Theory · Physics 2007-05-23 Frank Daniel Steffen

We present a parametric estimate of photon production at early times in heavy-ion collisions based on a consistent weak coupling thermalization scenario. We quantify the contribution of the off-equilibrium Glasma phase relative to that of a…

Nuclear Theory · Physics 2018-03-14 Jürgen Berges , Klaus Reygers , Naoto Tanji , Raju Venugopalan

A simple, analytical, nonrelativistic ionization rate formula for atoms and positive ions in intense ultraviolet and x-ray electromagnetic fields is derived. The rate is valid at arbitrary values of the Keldysh parameter and confirmed by…

Atomic Physics · Physics 2009-11-13 S. V. Popruzhenko , V. D. Mur , V. S. Popov , D. Bauer

Within an effective hadronic model including electromagnetic interactions via a U$_{\rm em}$(1) gauge, we reinvestigate photon Bremsstrahlung from a hot hadronic gas as expected to be formed in relativistic heavy-ion collisions at SPS…

Nuclear Theory · Physics 2008-11-26 W. Liu , R. Rapp

We present results for the thermal photon emissivity of the quark-gluon plasma derived from spatially transverse vector correlators computed in lattice QCD at a temperature of 250 MeV. The analysis of the spectral functions, performed at…

High Energy Physics - Lattice · Physics 2022-09-21 Marco Cè , Tim Harris , Ardit Krasniqi , Harvey B. Meyer , Csaba Török

We use a boost-invariant one-dimensional (cylindrically symmetric) fluid dynamics code to calculate thermal photon production in the central rapidity region of S+Au and Pb+Pb collisions at SPS energy ($\sqrt{s}=20$ GeV/nucleon). We assume…

Nuclear Theory · Physics 2009-09-25 John J. Neumann , David Seibert , George Fai

We non-perturbatively study the fermion spectrum in the chiral symmetric phase focusing on the effects of in-medium corrections for gauge boson. The fermion spectrum is derived by solving the Schwinger-Dyson equation (SDE) with ladder…

High Energy Physics - Phenomenology · Physics 2009-04-01 Masayasu Harada , Shunji Yoshimoto

Collective excitations of N = 1 supersymmetric electromagnetic plasma are studied. Since the Keldysh-Schwinger approach is used, not only equilibrium but also non-equilibrium plasma, which is assumed to be ultrarelativistic, is under…

High Energy Physics - Theory · Physics 2011-02-15 Alina Czajka , Stanislaw Mrowczynski

We study the equilibration of a parton plasma in terms of its parton compositions and its state of thermalization. In studying the evolution of the plasma, one has to assume a small value of the strong coupling constant. This value is by no…

Nuclear Theory · Physics 2007-05-23 S. M. H. Wong

We calculate one--loop corrections to the vertexes and propagators of photons and charged particles in the strong electric field backgrounds. We use the Schwinger--Keldysh diagrammatic technique. We observe that photon's Keldysh propagator…

High Energy Physics - Theory · Physics 2015-06-19 E. T. Akhmedov , N. Astrakhantsev , F. K. Popov

We consider weakly magnetized hot QED plasma comprising electrons and positrons. There are three distinct dispersive (longitudinal and two transverse) modes of a photon in a thermo-magnetic medium. At lowest order in coupling constant,…

High Energy Physics - Phenomenology · Physics 2020-03-11 Ritesh Ghosh , Bithika Karmakar , Munshi G Mustafa

We calculate the integrated-pulse quantum efficiency of single-photon sources in the cavity quantum electrodynamics (QED) strong-coupling regime. An analytical expression for the quantum efficiency is obtained in the Weisskopf-Wigner…

Quantum Physics · Physics 2009-11-11 Guoqiang Cui , M. G. Raymer

We investigate the 2nd order process of two photons being emitted by a high-energy electron dressed in the strong background electric field found between the planes in a crystal. The strong crystalline field combined with ultra relativistic…

High Energy Physics - Phenomenology · Physics 2019-08-21 Tobias N. Wistisen

The theory of linear acceleration emission is developed for a large amplitude electrostatic wave in which all particles become highly relativistic in much less than a wave period. An Airy integral approximation is shown to apply near the…

High Energy Astrophysical Phenomena · Physics 2011-02-11 D. B. Melrose , Q. Luo

Photon beam asymmetry $\Sigma$ measurements for $\omega$ photoproduction in the reaction $\vec{\gamma} p \to \omega p$ are reported for photon energies from 1.152 to 1.876 GeV. Data were taken using a linearly-polarized tagged photon beam,…

Nuclear Experiment · Physics 2018-02-01 CLAS Collaboration , P. Collins , B. G. Ritchie , M. Dugger , F. J. Klein , A. V. Anisovich , E. Klempt , V. A. Nikonov , A. Sarantsev , K. P. Adhikari , S. Adhikari , D. Adikaram , Z. Akbar , S. Anefalos Pereira , H. Avakian , J. Ball , N. A. Baltzell , M. Bashkanov , M. Battaglieri , V. Batourine , I. Bedlinskiy , A. S. Biselli , S. Boiarinov , W. J. Briscoe , W. K. Brooks , V. D. Burkert , Frank Thanh Cao , T. Cao , D. S. Carman , A. Celentano , G. Charles , T. Chetry , G. Ciullo , L. Clark , P. L. Cole , M. Contalbrigo , O. Cortes , V. Crede , N. Dashyan , R. De Vita , E. De Sanctis , M. Defurne , A. Deur , C. Djalali , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , A. Filippi , J. A. Fleming , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , D. I. Glazier , C. Gleason , E. Golovatch , R. W. Gothe , K. A. Griffioen , M. Guidal , K. Hafidi , H. Hakobyan , C. Hanretty , N. Harrison , M. Hattawy , D. Heddle , K. Hicks , G. Hollis , M. Holtrop , S. M. Hughes , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , D. Jenkins , H. Jiang , H. S. Jo , S. Joosten , D. Keller , G. Khachatryan , M. Khachatryan , M. Khandaker , A. Kim , W. Kim , A. Klein , V. Kubarovsky , S. V. Kuleshov , L. Lanza , P. Lenisa , K. Livingston , I. J. D. MacGregor , N. Markov , B. McKinnon , C. A. Meyer , Z. E. Meziani , T. Mineeva , V. Mokeev , R. A. Montgomery , A. Movsisyan , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , L. A. Net , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , M. Paolone , R. Paremuzyan , K. Park , E. Pasyuk , W. Phelps , S. Pisano , O. Pogorelko , J. W. Price , S. Procureur , Y. Prok , D. Protopopescu , B. A. Raue , M. Ripani , A. Rizzo , G. Rosner , F. Sabatie , C. Salgado , R. A. Schumacher , Y. G. Sharabian , A. Simonyan , Iu. Skorodumina , G. D. Smith , D. I. Sober , D. Sokhan , N. Sparveris , I. Stankovic , S. Stepanyan , I. I. Strakovsky , S. Strauch , M. Taiuti , M. Ungaro , H. Voskanyan , E. Voutier , N. K. Walford , D. P. Watts , X. Wei , M. H. Wood , N. Zachariou , J. Zhang , Z. W. Zhao

The extreme ultraviolet plasma emission from liquid microsized argon droplets exposed to intense near-infrared laser pulses has been investigated. Emission from the warm dense matter targets is recorded in a spectral range in between 16 and…

Atomic and Molecular Clusters · Physics 2018-01-17 R. Irsig , M. Shihab , L. Kazak , T. Bornath , J. Tiggesbäumker , R. Redmer , K. -H. Meiwes-Broer

By weakly gauging one of the U(1) subgroups of the R-symmetry group, N=4 super-Yang-Mills theory can be coupled to electromagnetism, thus allowing a computation of photon production and related phenomena in a QCD-like non-Abelian plasma at…

High Energy Physics - Theory · Physics 2009-11-11 Simon Caron-Huot , Pavel Kovtun , Guy Moore , Andrei Starinets , Laurence G. Yaffe