Mon·Jan 10, 2022Monday·January 10, 2022

1. 01*

   Coherence dynamics in low-energy nuclear fusion

   Iain Lee🇬🇧 · Alexis Diaz-Torres🇬🇧

   Low-energy nuclear fusion reactions have been described using a dynamical coupled-channels density matrix method, based on the theory of open quantum systems. For the first time, this has been combined with an energy projection method, permitting the calculation of energy resolved fusion probabilities. The results are benchmarked against calculations using stationary Schrödinger dynamics and show excellent agreement. Calculations of entropy, energy dissipation and coherence were conducted, demonstrating the capability of this method. It is evident that the presence of quantum decoherence does not affect fusion probability. This framework provides a basis for quantum thermodynamic studies using thermal environments.

   ↳ nucl-thnucl-exquant-phPLB(2022)·10 citations
2. 02*

   Practical considerations for the effect of finite coverage on the azimuthal dependence of global spin alignment

   Chao Zhang🇨🇳 · Peng Yang🇨🇳 · Feng Liu🇨🇳 · Biao Tu🇨🇳

   The global spin alignment of vector mesons is a powerful probe to study the vorticity field of the system produced in non-central relativistic heavy-ion collisions. Since the experimental observables of global spin alignment are sensitive to many factors, proper corrections are need to be taken care of when measuring the global spin alignment of vector mesons. In this paper, we propose a method to correct the effect of finite pseudo-rapidity coverage when extract the azimuthal dependence of spin alignment parameter ${\rho }_{00}$. The effects of the finite pseudo-rapidity coverage on the azimuthal dependence of $\varphi$ meson spin alignment and the potentially exist intrinsic spin alignment effects are taken into consideration. The method presented in this paper is verified in a Monte-Carlo simulation, it allows the measurements of azimuthal dependence of global spin alignment to be conducted properly and accurately.

   ↳ nucl-thnucl-exPRC(2022)·0 citations
3. 03*

   Systematic treatment of hypernuclear data and application to the hypertriton

   P. Eckert🇩🇪 · P. Achenbach🇩🇪 · M. Aragones Fontbote🇩🇪 · T. Akiyama🇯🇵 · M.O. Distler🇩🇪 · A. Esser🇩🇪 · J. Geratz🇩🇪 · M. Hoek🇩🇪 · K. Itabashi🇯🇵 · M. Kaneta🇯🇵 · R. Kino🇯🇵 · P. Klag🇩🇪 and 17 other authors

   A database is under construction to provide a complete collection of published basic properties of hypernuclei such as {\Lambda} binding energies, lifetimes, or excitation energies. From these values, averages with related errors are computed in a systematic way. For each property, the overall experimental situation is depicted in form of an ideogram showing the combined probability density function of the measurements. The database is accessible via a dynamic website at https://hypernuclei.kph.uni-mainz.de with an user interface offering customizable visualizations, selections, or unit conversions. The capabilities of the database are demonstrated for the puzzling and disputed data situation of the hypertriton.

   ↳ physics.data-annucl-exRev.Mex.Fis.Suppl.(2022)·8 citations
4. 04*

   An Experiment for Electron-Hadron Scattering at the LHC

   K. D. J. André🇨🇭 · L. Aperio Bella🇩🇪 · N. Armesto🇪🇸 · S. A. Bogacz🇺🇸 · D. Britzger🇩🇪 · O. S. Brüning🇨🇭 · M. D'Onofrio🇬🇧 · E. G. Ferreiro🇪🇸 · O. Fischer🇬🇧 · C. Gwenlan🇬🇧 · B. J. Holzer🇨🇭 · M. Klein🇬🇧 and 14 other authors

   Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron ($eh$) scattering experiment at the LHC in the thirties for which key physics topics and their relation to the hadron-hadron HL-LHC physics programme are discussed. Demands are derived set by these physics topics on the design of the LHeC detector, a corresponding update of which is described. Optimisations on the accelerator design, especially the interaction region (IR), are presented. Initial accelerator considerations indicate that a common IR is possible to be built which alternately could serve $eh$ and $hh$ collisions while other experiments would stay on $hh$ in either condition. A forward-backward symmetrised option of the LHeC detector is sketched which would permit extending the LHeC physics programme to also include aspects of hadron-hadron physics. The vision of a joint $eh$ and $hh$ physics experiment is shown to open new prospects for solving fundamental problems of high energy heavy-ion physics including the partonic structure of nuclei and the emergence of hydrodynamics in quantum field theory while the genuine TeV scale DIS physics is of unprecedented rank.

   ↳ hep-exhep-phnucl-exEPJC(2022)·25 citations
5. 05*

   Neutrinos at FPF

   Ulrich Mosel🇩🇪 · Kai Gallmeister🇩🇪

   The GiBUU model is used to obtain information on possible neutrino-nucleus events at the proposed Forward Physics Facility (FPF) at CERN. An FPF neutrino program could contribute to fundamental questions such as formation times, color transparency and the EMC effect for neutrinos.

   ↳ hep-phhep-exnucl-exnucl-th7 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.