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Plane waves reversibility
(Sociedad Mexicana de Física, 2020-08-22)
This work simulates reversibility of plane waves in different ways. We start making theoretical classical reversing of a plane wave in two different ways exchanging t by –t as first step. In one case, we additionally flip the temporal orientation of the magnetic field. In the other case, we flip the electric field. Therefore, we can compare two classical approaches to time reversed electromagnetism on plane waves. On the other hand, we obtain two different mechanically reversed plane electromagnetic waves out of the frame of the electromagnetics reversibility theory. A theoretical experiment makes these effects, where, an infinite plane current generates two plane waves in opposite directions. After this, the waves are made to return by two different ways: (1) by retro reflecting and (2) by moving back the wave. Finally, the returning plane waves insides over a conductor plane in order to induce plane currents in the conductor. The goal is to complete reversibility cycles including the charges movement. The returning waves and the induced currents will be compared themselves in all the cases. Charges movements are also included in the discussion in order to have an additional felling of the waves reversibility and physical insight of time-reversed waves. It is used a plane waves theoretical experiment created by Feynman as a starting point [1]
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Jet-hadron correlations measured relative to the second order event plane in Pb-Pb collisions at sNN =2.76 TeV
(American Physical Society, 2020-06-01)
The quark gluon plasma produced in ultrarelativistic heavy-ion collisions at the Large Hadron Collider (LHC) can be studied by measuring the modifications of jets formed by hard scattered partons which interact with the medium. We studied these modifications via angular correlations of jets with charged hadrons for jets with momenta $20<{p}_{\mathrm{T}}^{\mathrm{jet}}<40$ GeV/$c$ as a function of the associated particle momentum. The reaction plane fit method is used in this analysis to remove the flow modulated background. The analysis of angular correlations for different orientations of the jet relative to the second order event plane allows for the study of the path length dependence of medium modifications to jets. We present the dependence of azimuthal angular correlations of charged hadrons with respect to the angle of the axis of a reconstructed jet relative to the event plane in Pb-Pb collisions at $\sqrt{{s}_{NN}}$ = 2.76 TeV. The dependence of particle yields associated with jets on the angle of the jet with respect to the event plane is presented. Correlations at different angles relative to the event plane are compared through ratios and differences of the yield. No dependence of the results on the angle of the jet with respect to the event plane is observed within uncertainties, which is consistent with no significant path length dependence of the medium modifications for this observable.
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On the Zariski invariant of plane branches
(Polish Academy of Sciences::will be referenced::ROR-ID, 2026-03-16)
We show how to obtain the Zariski invariant of a plane branch employing the contact order or the intersection multiplicity with elements in a particular family of curves, and we present some consequences of this result.
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Measurement of the A dependence of the νμ charged-current quasielasticlike cross section as a function of muon and proton kinematics at ⟨Eᵥ⟩ ∼ 6 GeV
(American Physical Society, 2025)
The first simultaneous measurements of the νμ quasielasticlike cross section on C, CH, H₂O, Fe, and Pb targets as a function of kinematic imbalance variables in the plane transverse to the incoming neutrino direction are presented. These variables combine the muon and proton information to provide a new way to disentangle the effects of the nucleus in quasielasticlike processes. The data were obtained using a wideband νμ beam with ⟨Eᵥ⟩ ∼ 6 GeV. Cross-section ratios of the different target materials to CH are also shown. These measurements are used to explore the nature of the cross-section A scaling, as well as initial and final state interaction effects. Comparisons are made to predictions from a number of commonly used neutrino Monte Carlo event generators. The range of predictions of the different models tends to cover the data but the degree and consistency of the agreement suffers in regions, and on higher A targets, where the final state interactions are expected to be more pronounced.
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