Measurement of the mass difference and the binding energy of the hypertriton and antihypertriton

Adam, J.; Adamczyk, L.; Adams, Alexandra; Adkins, J. K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alekseev, I.; Anderson, D. M.; Aparin, A.; Aschenauer, E. C.; Ashraf, M. U.; Atetalla, F. G.; Attri, A.; Averichev, G. S.; Bairathi, V.; Barish, K. N.; Behera, A.; Bellwied, R.; Bhasin, A.; Bielčík, J.; Bielčíková, J.; Bland, L. C.; Bordyuzhin, I. G.; Brandenburg, J. D.; Brandin, A. V.; Butterworth, J.; Caines, H.; Sánchez, MC de la Barca; Cebra, D.; Chakaberia, I.; Chaloupka, P.; Chan, B. K.; Chang, F-H.; Chang, Z.; Chankova-Bunzarova, N.; Chatterjee, A.; Chen, D; Jh, Chen; Chen, X; Chen, Z; Cheng, J.; Cherney, M.; Chevalier, M.; Choudhury, S.; Christie, W.; Crawford, H. J.; Csanád, M.; Daugherity, M.; Dedovich, T. G.; Deppner, I. M.; Derevschikov, A. A.; Didenko, L.; Dong, X.; Drachenberg, J. L.; Dunlop, J. C.; Edmonds, T.; Elsey, N.; Engelage, J.; Eppley, G.; Esha, R.; Esumi, S.; Evdokimov, O.; Ewigleben, A.; Eyser, O.; Fatemi, R.; Fazio, S.; Federic, P.; Fedorišin, J.; Feng, C.; Feng, Y.; Filip, P.; Finch, E.; Fisyak, Y.; Francisco, A.; Fulek, Ł.; Gagliardi, C. A.; Galatyuk, T.; Geurts, F. J. M.; Gibson, A.; Gopal, K.; Grosnick, D.; Guryn, W.; Hamad, A.I.; Hamed, A.; Harris, J. W.; He, Song; He, W.; He, X.; Heppelmann, S.; Herrmann, N.; Hoffman, Eric A.; Holub, L.; Hong, Yifan; Horvat, S.; Hu, Y.; Huang, H. Z.; Huang, S.; Huang, T.

doi:10.1038/s41567-020-0799-7

Cited by 93 publications

(32 citation statements)

References 43 publications

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“…The potential between N and Λ used in 3 Λ H binding energy calculation is YNG-ND interactions [56,57] with k F = 0.84f m −1 [58]. It can be seen that this calculation of Ωpn is consistent with the results from Garcilazo and Valcarce's results [24], and the results of 3 H and 3 Λ H are close to experimental results [59,60] and theoretical calculations as well [61].…”

Section: B Solving Three-body Bound Statesupporting

confidence: 85%

Production of $ΩNN$ and $ΩΩN$ in ultra-relativistic heavy ion collisions

Zhang,

2021

Preprint

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Even though lots of Λ-hypernuclei have been found and measured, multi-strangeness hypernuclei consisting of Ω are not yet discovered. The studies of multi-strangeness hypernuclei help us further understand the interaction between hyperons and nucleons. Recently the ΩN and ΩΩ interactions as well as binding energies were calculated by the HAL-QCD's lattice Quantum Chromo-Dynamics (LQCD) simulations and production rates of Ω-dibaryon in Au + Au collisions at RHIC and Pb + Pb collisions at LHC energies were estimated by a coalescence model. This work discusses the production of more exotic triple-baryons including Ω, namely ΩN N and ΩΩN as well as their decay channels. A variational method is used in calculations of bound states and binding energy of ΩN N and ΩΩN with the potentials from the HAL-QCD's results. The productions of ΩN N and ΩΩN are predicted by using a blast-wave model plus coalescence model in ultra-relativistic heavy ion collisions at √ sNN = 200 GeV and 2.76 TeV. Furthermore, plots for baryon number dependent yields of different baryons (N and Ω), their dibaryons and hypernuclei are made and the production rate of a more exotic tetra-baryon (ΩΩN N ) is extrapolated.

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Section: B Solving Three-body Bound Statesupporting

confidence: 85%

Production of $ΩNN$ and $ΩΩN$ in ultra-relativistic heavy ion collisions

Zhang,

2021

Preprint

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“…Therefore, any model explaining the potential cosmic antihelium signal must not be above the measured antiproton flux and must respect current antideuteron detection limits. The properties of light cosmic-ray antinuclei have been studied in accelerator-based experiments using various colliding systems and colliding energies to determine their production mechanisms quantitatively [42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. Despite of the plethora of very precise measurements, the studies do not suffice to constrain the antinuclei production cross sections within the very wide energy range of collisions occurring between high-energy cosmic rays and nuclei present in the interstellar medium.…”

Section: Introductionmentioning

confidence: 99%

Reevaluation of the cosmic antideuteron flux from cosmic-ray interactions and from exotic sources

Šerkšnytė,

Königstorfer,

von Doetinchem

et al. 2022

Preprint

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Cosmic-ray antideuterons could be a key for the discovery of exotic phenomena in our Galaxy, such as dark-matter annihilations or primordial black hole evaporation. Unfortunately the theoretical predictions of the antideuteron flux at Earth are plagued with uncertainties from the mechanism of antideuteron production and propagation in the Galaxy. We present the most up-to-date calculation of the antideuteron fluxes from cosmic-ray collisions with the interstellar medium and from exotic processes. We include for the first time the antideuteron inelastic interaction cross section recently measured by the ALICE collaboration to account for the loss of antideuterons during propagation. In order to bracket the uncertainty in the expected fluxes, we consider several state-of-the-art models of antideuteron production and of cosmic-ray propagation.

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“…Since almost 50 years, the most precise binding energy value is given by Λ = 130 ± 50 keV, averaged and compiled from emulsion experiments [1]. Recently, two new values became available, one by the STAR Collaboration [2], Λ = 406 ± 120 (stat.) ± 110 (syst.)…”

Section: λ Binding Energies Of Hydrogen Hypernucleimentioning

confidence: 99%

Preparation of the hypertriton binding energy measurement at MAMI

Eckert¹,

Achenbach²,

Fontboté³

et al. 2022

Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)

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A new experiment is being prepared at the Mainz Microtron (MAMI) to determine the Λ binding energy of hypertriton. The energy will be measured by the spectroscopy of mono-energetic pions from two-body decays of stopped hyperfragments. During the last decade, it has been demonstrated at MAMI that this technique yields an unprecedented precision. The new experiment makes use of a novel high-luminosity target that takes advantage of the low density of lithium to minimize momentum smearing for the outgoing pions. With a beam energy determination by the novel undulator light interference method an improved calibration of the magnetic spectrometers can be performed to reach the goal of a statistical and systematic error of ∼ 20 keV.

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Measurement of the mass difference and the binding energy of the hypertriton and antihypertriton

Cited by 93 publications

References 43 publications

Production of $ΩNN$ and $ΩΩN$ in ultra-relativistic heavy ion collisions

Production of $ΩNN$ and $ΩΩN$ in ultra-relativistic heavy ion collisions

Reevaluation of the cosmic antideuteron flux from cosmic-ray interactions and from exotic sources

Preparation of the hypertriton binding energy measurement at MAMI

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