Self-gravitating strange dark matter halos around galaxies

Merafina, Marco; Saturni, Francesco Gabriele; Curceanu, C.; Grande, R. Del; Piscicchia, K.

doi:10.1103/physrevd.102.083015

Cited by 15 publications

(9 citation statements)

References 97 publications

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“…In this context, the kaonic atom X-ray de-excitation transitions towards the fundamental level provide a unique measurement on the KN strong interaction at threshold, without the need to extrapolate to zero like for KN scattering results. Kaonic atom X-ray spectroscopy is a perfect tool to directly investigate the strong interaction in the low-energy limit, for a deeper understanding of the low energy QCD in the non perturbative regime in the strangeness sector (with implications from particle and nuclear physics to astrophysics [1][2][3][4]).…”

Section: The Siddharta-2 Experimentsmentioning

confidence: 99%

High precision Kaonic Deuterium measurement at the DAΦNE collider: the SIDDHARTA-2 experiment and the SIDDHARTINO run

Miliucci¹,

Bosnar²,

Bragadireanu³

et al. 2022

Supl. Rev. Mex. Fis.

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The kaonic deuterium 2p→1s transition X-ray measurement, a fundamental information needed for a deeper understanding of the Quantum ChromoDynamics (QCD) in the strangeness sector, is still missing. The SIDDHARTA-2 collaboration is now ready to achieve this unprecedented result thanks to the dedicated experimental apparatus that will allow to obtain the values of the kaonic deuterium K-transitions with a precision comparable to the most precise kaonic hydrogen measurement to-date performed by SIDDHARTA in 2009. Both the kaonic hydrogen and kaonic deuterium X-ray spectroscopy measurements of the de-excitation towards the fundamental level are a direct probe on KN interaction at threshold, as opposed to the scattering experiments which need an extrapolation to zero energy. Combining these results through the Deser-Truemann like formula, the isospin-dependent kaon-nucleon scattering lengths can be obtained in a model-independent way. The SIDDHARTA-2 setup is presently installed at the DAΦNE (Double Annular Φ Factory for Nice Experiments) collider of Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati and it is ready to perform the challening kaonic deuterium measurement. Thispaper provides an overview on the SIDDHARTA-2 experimental apparatus and a preliminary result of the kaonic helium run, preparatory for the SIDDHARTA-2 data taking campaign, is also presented.

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Section: The Siddharta-2 Experimentsmentioning

confidence: 99%

High precision Kaonic Deuterium measurement at the DAΦNE collider: the SIDDHARTA-2 experiment and the SIDDHARTINO run

Miliucci¹,

Bosnar²,

Bragadireanu³

et al. 2022

Supl. Rev. Mex. Fis.

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“…The energy shift and width of the orbital level reflect, respectively, the type of the strong interaction (repulsive or attractive) and the finite lifetime of the hadron, in the atomic orbit, due to the nuclear absorption. In the field of hadronic atoms, kaonic atoms are the ideal tool to explore the low-energy QCD in the strangeness sector with implications ranging from particle and nuclear physics [9,10] to astrophysics [11] and dark matter [12]. In this context, after the most precise measurement of kaonic hydrogen's fundamental level energy shift and width performed by SIDDHARTA [13], the SIDDHARTA-2 collaboration aims to perform the first measurement ever of the kaonic deuterium X-ray transitions to the ground state.…”

Section: Introductionmentioning

confidence: 99%

Kaonic atoms measurements with SIDDHARTA-2

Sgaramella

Bosnar

Bragadireanu

et al. 2023

J. Phys.: Conf. Ser.

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The SIDDHARTA-2 collaboration is aiming to perform the challenging measurement of kaonic deuterium X-ray transitions to the ground state. This will allow to extract the isospin-dependent antikaon-nucleon scattering lengths, providing input to the theory of Quantum Chromodynamics (QCD) in the non-perturbative regime with strangeness. This work describes the SIDDHARTA-2 experimental apparatus and presents the results obtained during the commissioning phase realized with kaonic helium measurements. In particular, the first observation of the kaonic helium transitions to the 3s level (M-lines), reported in this work, represents a new source of information to study the kaonic helium cascade process and demonstrates the potential of the SIDDHARTA-2 apparatus, in the view of the ambitious kaonic deuterium measurement.

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“…Among these, the SDDs' excellent spectroscopic performances are used for light kaonic atom X-ray spectroscopy to accurately determine shifts ( ) and widths (Γ) of the atomic levels caused by the KN strong interaction. These measurements allow one to probe the non-perturbative quantum chromodynamics (QCD) in the strangeness sector, with implications extending from particle and nuclear physics to astrophysics [8][9][10][11]. In 2009, the SDDs technology was employed for the first time by the SIDDHARTA collaboration [12], at the DAΦNE collider [13,14] of Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali di Frascati (INFN-LNF), achieving the most precise measurements of the K − H fundamental level shift ( ) and width (Γ).…”

Section: Introductionmentioning

confidence: 99%

Silicon Drift Detectors’ Spectroscopic Response during the SIDDHARTA-2 Kaonic Helium Run at the DAΦNE Collider

et al. 2021

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A large-area silicon drift detectors (SDDs) system has been developed by the SIDDHARTA-2 collaboration for high precision light kaonic atom X-ray spectroscopy at the DAΦNE collider of Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati. The SDDs’ geometry and electric field configuration, combined with their read-out electronics, make these devices suitable for performing high precision light kaonic atom spectroscopy measurements in the background of the DAΦNE collider. This work presents the spectroscopic response of the SDDs system during the first exotic atoms run of SIDDHARTA-2 with kaonic helium, a preliminary to the kaonic deuterium data taking campaign. The SIDDHARTA-2 spectroscopic system has good energy resolution and a 2 μs timing window which rejects the asynchronous events, scaling the background by a factor of 10−5. The results obtained for the first exotic atoms run of SIDDHARTA-2 prove this system to be ready to perform the challenging kaonic deuterium measurement.

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Self-gravitating strange dark matter halos around galaxies

Cited by 15 publications

References 97 publications

High precision Kaonic Deuterium measurement at the DAΦNE collider: the SIDDHARTA-2 experiment and the SIDDHARTINO run

High precision Kaonic Deuterium measurement at the DAΦNE collider: the SIDDHARTA-2 experiment and the SIDDHARTINO run

Kaonic atoms measurements with SIDDHARTA-2

Silicon Drift Detectors’ Spectroscopic Response during the SIDDHARTA-2 Kaonic Helium Run at the DAΦNE Collider

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