Decoherence, perturbations and symmetry in Lindblad dynamics: implications for diffractive dissociation.
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| Title: | Decoherence, perturbations and symmetry in Lindblad dynamics: implications for diffractive dissociation. |
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| Authors: | Klimenko, A. Y.1 (AUTHOR) a.klimenko@uq.edu.au |
| Source: | European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-22. 22p. |
| Subjects: | Decoherence (Quantum mechanics), Diffractive scattering, Perturbation theory, Symmetries (Quantum mechanics), Quantum theory, Collisions (Nuclear physics) |
| Abstract: | We extend a perturbative Dyson-type treatment and discrete-symmetry constraints from the Schrödinger and von Neumann equations to a dephasing Lindblad framework. This work develops further the odd-symmetric formulation involving dual temporal conditions from general dynamical considerations to specific tools of quantum mechanics. Applying the resulting scaling relations to published single- and double-diffractive data in pp and p p ¯ collisions (ISR, UA4, UA5, CDF, D0, ALICE, and E710), we show that single-diffraction cross sections are well described by a three-parameter fit with a relative RMS deviation of ∼ 4 % , substantially improving upon conventional approximations that neglect decoherence. The extracted decoherence factor is consistently ϕ ≈ 0.89 , in agreement across SD, DD, and E710-based (direct) estimates, and is naturally interpreted as ϕ = 1 for CP-invariant dephasing but ϕ < 1 for CPT-invariant dephasing, favouring the latter. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | We extend a perturbative Dyson-type treatment and discrete-symmetry constraints from the Schrödinger and von Neumann equations to a dephasing Lindblad framework. This work develops further the odd-symmetric formulation involving dual temporal conditions from general dynamical considerations to specific tools of quantum mechanics. Applying the resulting scaling relations to published single- and double-diffractive data in pp and p p ¯ collisions (ISR, UA4, UA5, CDF, D0, ALICE, and E710), we show that single-diffraction cross sections are well described by a three-parameter fit with a relative RMS deviation of ∼ 4 % , substantially improving upon conventional approximations that neglect decoherence. The extracted decoherence factor is consistently ϕ ≈ 0.89 , in agreement across SD, DD, and E710-based (direct) estimates, and is naturally interpreted as ϕ = 1 for CP-invariant dephasing but ϕ < 1 for CPT-invariant dephasing, favouring the latter. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-026-15689-x |
