Dimiter Hadjimichef

Dr. Dimiter Hadjimichef

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Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 February 2020 in Physical Review C
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JQJ. N. de Quadros
J. N. de Quadros
DSD. T. da Silva
D. T. da Silva
MSM. L. L. da Silva
M. L. L. da Silva
DHDimiter Hadjimichef
Dimiter Hadjimichef
Extensively applied to both light and heavy meson decay and standing as one of the most successful strong decay models is the P03 model, in which qq¯ pair production is the dominant mechanism. In this paper we evaluate strong decay amplitudes and partial widths of strange S and D state mesons, namely ϕ(1020), ϕ(1680), ϕ(2050), ϕ1(1850), ϕ2(1850), and ϕ3(1850), in the bound-state corrected P03 decay model (CP03). The CP03 model is obtained in the context of the Fock-Tani formalism, which is a mapping technique.

10 January 2023 in Astronomische Nachrichten
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Journal Article
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TFThiago Oliveira Ferreira
Thiago Oliveira Ferreira
CVCésar A. Z. Vasconcellos
César A. Z. Vasconcellos
DHDimiter Hadjimichef
Dimiter Hadjimichef

8 February 2024 in Astronomische Nachrichten
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Journal Article
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MNMarcelo Netz-Marzola
Marcelo Netz-Marzola
CVCesar Augusto Zen Vasconcellos
Cesar Augusto Zen Vasconcellos
DHDimiter Hadjimichef
Dimiter Hadjimichef

30 March 2021 in Journal of High Energy Physics
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VSV. M. G. Silveira
V. M. G. Silveira
CVC. A. Z. Vasconcellos
C. A. Z. Vasconcellos
ELEmerson Luna
Emerson Luna
DHDimiter Hadjimichef
Dimiter Hadjimichef
We investigate non-inertial effects on CP-violating processes using a model, based on the framework of quantum field theory in curved spacetimes, devised to account for the decay of accelerated particles. We show that the CP violation parameter for the decay of accelerated kaons into two pions decreases very slightly as very high accelerations are achieved, implying decreased asymmetry between matter and antimatter in this regime. We discuss the relationship between these results and cosmological processes surrounding matter-antimatter asymmetry and argue that, due to the connection between non-inertial and thermal phenomena established by the Unruh effect, this kind of computation may prove useful in furthering the understanding of thermodynamical effects in curved spacetimes.

31 May 2025 in Universe
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CVCesar Augusto Zen Vasconcellos
Cesar Augusto Zen Vasconcellos
PHPeter Hess
Peter Hess
José Antonio De Freitas PachecoJosé Antonio De Freitas Pacheco
José Antonio De Freitas Pacheco
Fridolin WeberFridolin Weber
Fridolin Weber
RRRemo Ruffini
Remo Ruffini
JGJoão Gabriel Galli Gimenez
João Gabriel Galli Gimenez
We present a study of relic gravitational waves based on a foliated gauge field theory defined over a spacetime endowed with a noncommutative algebraic–geometric structure. As an ontological extension of general relativity—concerning manifolds, metrics, and fiber bundles—the conventional space and time coordinates, typically treated as classical numbers, are replaced by complementary quantum dual fields. Within this framework, consistent with the Bekenstein criterion and the Hawking–Hertog multiverse conception, singularities merge into a helix-like cosmic scale factor that encodes the topological transition between the contraction and expansion phases of the universe analytically continued into the complex plane. This scale factor captures the essence of an intricate topological quantum-leap transition between two phases of the branching universe: a contraction phase preceding the now-surpassed conventional concept of a primordial singularity and a subsequent expansion phase, whose transition region is characterized by a Riemannian topological foliated structure. The present linearized formulation, based on a slight gravitational field perturbation, also reveals a high sensitivity of relic gravitational wave amplitudes to the primordial matter and energy content during the universe’s phase transition. It further predicts stochastic homogeneous distributions of gravitational wave intensities arising from the interplay of short- and long-spacetime effects within the non-commutative algebraic framework. These results align with the anticipated future observations of relic gravitational waves, expected to pervade the universe as a stochastic, homogeneous background.

5 August 2014 in Astronomische Nachrichten
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DHDimiter Hadjimichef
Dimiter Hadjimichef
CVC. A. Z. Vasconcellos
C. A. Z. Vasconcellos