Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Amat, Orkash"'
We have formulated a generalized two level model for studying the pair production in multidimensional time-dependent electric fields. It can provide momentum spectra with fully spin resolved components for all possible combined spin states of the par
Externí odkaz:
http://arxiv.org/abs/2409.11833
Spin effect on the pair production under circularly polarized fields are investigated. Significantly different from what momentum spirals caused by two counter-rotating fields with a time delay, we find for the first time that the spirals can also be
Externí odkaz:
http://arxiv.org/abs/2402.16476
We investigate the effects of the asymmetric pulse shapes on electron-positron pair production in three distinct fields: chirp-free, small frequency chirp, and large frequency chirp fields via the real-time Dirac-Heisenberg-Wigner formalism. Our find
Externí odkaz:
http://arxiv.org/abs/2401.17007
Effect of spatially oscillating fields on the electron-positron pair production is studied numerically and analytically when the work done by the electric field over its spatial extent is smaller than twice the electron mass. Under large spatial scal
Externí odkaz:
http://arxiv.org/abs/2305.06100
Publikováno v:
Physical Review D 107, 116010 (2023)
Spirals in multiphoton pair production are revisited by two counter-rotating fields with time delay for different cycles in pulse. Novel findings include that for subcycle fields, the remarkable spiral structure in the momentum spectrum can be still
Externí odkaz:
http://arxiv.org/abs/2303.15781
Effect of the carrier envelop phase on the electron-positron pair production is studied in spatially inhomogeneous electric field with symmetrical frequency chirping. In high or low original frequency field without chirping as well as one with chirpi
Externí odkaz:
http://arxiv.org/abs/2206.10342
Electron-positron pair production is investigated in spatial inhomogeneous electric fields with high or/and low central frequency as well as sinusoidal phase modulation. It is found that the momentum spectrum (the reduced particle number) is more sen
Externí odkaz:
http://arxiv.org/abs/2206.04228
Schwinger pair production in some of space-dependent electromagnetic fields is studied analytically by using worldline instantons formalism for scalar quantum electrodynamics. With the increase of the modified Keldysh parameter $\gamma_{keb}$, the pa
Externí odkaz:
http://arxiv.org/abs/2204.07263
Autor:
Amat, Orkash, Czakon, Michał, Dulat, Sayipjamal, Hou, Tie-Jiun, Huston, Joey, Mitov, Alexander, Papanastasiou, Andrew S., Schmidt, Carl, Sitiwaldi, Ibrahim, Xie, Keping, Yu, Zhite, Yuan, C. -P.
Detailed studies have been carried out on the impact of the LHC top quark pair production data on gluon PDF, in the context of the CTEQ-TEA global PDF fit, with the ePump-updating method. The considered $t\bar{t}$ data include single differential dis
Externí odkaz:
http://arxiv.org/abs/1908.06441
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