ALP production through non-linear Compton scattering in intense fields

King, B.

doi:10.1140/epjc/s10052-018-6207-0

Cited by 19 publications

(20 citation statements)

References 107 publications

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“…In this formula, κ MS (p 2 ) represents the only nontrivial eigenvalue of the polarization tensor [84,85], which-in the limit under consideration-turns out to be smaller than Σ MS (p 2 ) by a factor −2/3. Let us finally remark that, in addition to the axiondiphoton interplay, axion self-coupling [86] as well as effective interactions with electron, proton and neutron might occur [16,[87][88][89]. In such a case further one-loop contributions to the axion self-energy operator might arise.…”

Section: Axion Self-energy Operator Renormalized Mass Vs Physicalmentioning

confidence: 98%

Axion-modified photon propagator, Coulomb potential, and Lamb shift

2018

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A consistent renormalization of a quantum theory of axion-electrodynamics requires terms beyond the minimal coupling of two photons to a neutral pseudoscalar field. This procedure is used to determine the self-energy operators of the electromagnetic and the axion fields with an accuracy of second-order in the axion-diphoton coupling. The resulting polarization tensor is utilized for establishing the axion-modified Coulomb potential of a static pointlike charge. In connection, the plausible distortion of the Lamb-shift in hydrogenlike atoms is established and the scopes for searching axionlike particles in high-precision atomic spectroscopy and in experiments of Cavendish-type are investigated. Particularly, we show that these hypothetical degrees of freedom are ruled out as plausible candidates for explaining the proton radius anomaly in muonic hydrogen. A certain loophole remains, though, which is linked to the nonrenormalizable nature of axion-electrodynamics.

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Section: Axion Self-energy Operator Renormalized Mass Vs Physicalmentioning

confidence: 98%

Axion-modified photon propagator, Coulomb potential, and Lamb shift

2018

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“…In the case that the gauge group is U(1), the fundamental weights obey µ → 1 and these quark solutions reduce to the well-known Volkov solutions of QED for an electron in a background plane wave [10]. For a recent review of their properties see [11], for applications to BSM physics [46][47][48][49], for neutrino physics [50], and for helicity flip, which underlies vacuum birefringence [51][52][53], see [14,33].…”

Section: Quarksmentioning

confidence: 99%

Gluon helicity flip in a plane wave background

Adamo

Ilderton

2019

J. High Energ. Phys.

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We compute the leading probability for a gluon to flip helicity state upon traversing a background plane wave gauge field in pure Yang-Mills theory and QCD, with an arbitrary number of colours and flavours. This is a one-loop calculation in perturbative gauge theory around the gluonic plane wave background, which is treated without approximation (i.e., to all orders in the coupling). We introduce a background-dressed version of the spinor helicity formalism and use it to obtain simple formulae for the flip amplitude with pure external gluon polarizations. We also give in-depth examples for gauge group SU(2), and evaluate both the high-and low-energy limits. Throughout, we compare and contrast with the calculation of photon helicity flip in strong-field QED.

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“…Various scenarios for probing BSM physics using the non-perturbative coupling to QED that occurs in strong electromagnetic fields, have been investigated in the literature [134][135][136][137][138][139][140][141][142][143][144][145][146]. BSM opportunities specific to the LUXE set-up are presented in Ref.…”

Section: Probing Physics Beyond the Standard Model At Luxementioning

confidence: 99%

Conceptual design report for the LUXE experiment

Abramowicz

Acosta

Altarelli

et al. 2021

Eur. Phys. J. Spec. Top.

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121

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This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an experimental campaign that aims to combine the high-quality and high-energy electron beam of the European XFEL with a powerful laser to explore the uncharted terrain of quantum electrodynamics characterised by both high energy and high intensity. We will reach this hitherto inaccessible regime of quantum physics by analysing high-energy electron-photon and photon-photon interactions in the extreme environment provided by an intense laser focus. The physics background and its relevance are presented in the science case which in turn leads to, and justifies, the ensuing plan for all aspects of the experiment: Our choice of experimental parameters allows (i) field strengths to be probed where the coupling to charges becomes non-perturbative and (ii) a precision to be achieved that permits a detailed comparison of the measured data with calculations. In addition, the high photon flux predicted will enable a sensitive search for new physics beyond the Standard Model. The initial phase of the experiment will employ an existing 40 TW laser, whereas the second phase will utilise an upgraded laser power of 350 TW. All expectations regarding the performance of the experimental set-up as well as the expected physics results are based on detailed numerical simulations throughout.

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ALP production through non-linear Compton scattering in intense fields

Cited by 19 publications

References 107 publications

Axion-modified photon propagator, Coulomb potential, and Lamb shift

Axion-modified photon propagator, Coulomb potential, and Lamb shift

Gluon helicity flip in a plane wave background

Conceptual design report for the LUXE experiment

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