Falk Schupp
A5021741461- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Astronomical Observations and Instrumentation
- Quantum, superfluid, helium dynamics
- Advanced NMR Techniques and Applications
- Superconducting Materials and Applications
- Muon and positron interactions and applications
- Magnetic confinement fusion research
- Advanced Frequency and Time Standards
- DNA and Nucleic Acid Chemistry
- Medical Imaging and Pathology Studies
- Radioactive Decay and Measurement Techniques
- Particle Accelerators and Free-Electron Lasers
- Atomic and Molecular Physics
- Particle accelerators and beam dynamics
Helmholtz Institute Mainz
2018-2023
Johannes Gutenberg University Mainz
2018-2023
GSI Helmholtz Centre for Heavy Ion Research
2022-2023
In an emulsion-counter hybrid experiment performed at J-PARC, a $Ξ^-$ absorption event was observed which decayed into twin single-$Λ$ hypernuclei. Kinematic calculations enabled unique identification of the reaction process as $Ξ^{-} + ^{14}$N$\ \rightarrow\ ^{10}_Λ$Be $^5_Λ$He. For binding energy $Ξ^{-}$ hyperon in $Ξ^-$-$^{14}$N system value $1.27 \pm 0.21$ MeV deduced. The level is likely nuclear $1p$ state indicates weak $ΞN$-$ΛΛ$ coupling.
A double-$\Lambda$ hypernucleus, ${}_{\Lambda\Lambda}\mathrm{Be}$, was observed by the J-PARC E07 collaboration in nuclear emulsions tagged $(K^{-},K^{+})$ reaction. This event interpreted as a production and decay of $ {}_{\Lambda\Lambda}^{\;10}\mathrm{Be}$, ${}_{\Lambda\Lambda}^{\;11}\mathrm{Be}$, or ${}_{\Lambda\Lambda}^{\;12}\mathrm{Be}^{*}$ via $\Xi^{-}$ capture ${}^{16}\mathrm{O}$. By assuming atomic 3D state, binding energy two $\Lambda$ hyperons$\,$($B_{\Lambda\Lambda}$) these...
The BNL-AGS E906 experiment was the first fully electronic to produce and study double hypernuclei with large statistics. Two dominant structures were observed in correlated π−–π− momentum matrix at (pπ−H,pπ−L)=(133,114)MeV/c (114,104)MeV/c. In this work we argue that interpretation of structure (133,114)MeV/c terms Λ3H+Λ4H pairs is questionable. We show, neither a scenario where these single-Λ are produced after capture stopped Ξ− by 9Be nucleus nor interactions energetic nuclei target...
This write-up document is a summary of International workshop on the project for extended hadron experimental facility which was held from March 26 to 28, 2018 at KEK Tokai Campus. collection Letter Of Intents (LOIs) related proposed beam lines in J-PARC.
The current status of the J-PARC E07 experiment and two typical events, a _ΛΛBe hypernuclear event named “MINO” \(_{\Xi }^{15}\text{C}\) “IBUKI”, are presented. is most complex emulsion so far to investigate double hypernuclei. physics run at K1.8 beam line in hadron facility photographic development all sheets have been completed. presently being analyzed with dedicated optical microscopes. Current statistics estimated be about twice that KEK-PS E373. Quantitative data on ΔB_ΛΛ Λ...
In the PANDA experiment's hypernuclear and hyperatom setup, a positioning system for primary production target is required, which will be located in center of solenoid magnet, ultra-high vacuum, exposed to high radiation levels. this work, prototype sensor was built using bisected light guide infrared low-priced readout based on microcontrollers. contrast many modern systems that require electronics direct proximity, setup has no active electronic components close moving parts. The operated...
We propose a new method to measure the evolution of neutron skin thickness between different isotopes with small statistical and systematic uncertainties. consider antiproton--nucleus interactions close production threshold $\Lambda \overline{\Lambda }$ $\Sigma^-\overline{\Lambda pairs. At low energies, pairs are produced in $\overline{\text{p}} +\text{p}$ collisions, while can only be +\text{n}$ interactions. Within simple geometrical picture we show that double ratio for two directly...
In this work we propose a new method to measure the evolution of neutron skin thickness between different isotopes. We consider antiproton–nucleus interactions close production threshold ΛΛ̅ and Σ − Λ̅ pairs. At low energies, pairs are produced in p̅ + p collisions, while can only be n interactions. Measuring these cross sections provides information on thickness.
In the P¯ANDA experiment's hypernuclear and hyperatom setup, a positioning system for primary production target is required, which will be located in center of solenoid magnet, ultra-high vacuum, exposed to high radiation levels. this work, prototype sensor was built using bisected light guide infrared low-priced readout based on microcontrollers. contrast many modern systems that require electronics direct proximity, setup has no active electronic components close moving parts. The operated...
J-PARC E07 is the most complex emulsion experiment to date investigating double hypernuclei with a hybrid method. This aims detect 104 Ξ− stop events, ten times more events than past experiments. Thus, an unequivocal identification of several new expected. The beam exposure has been completed at K1.8 line hadron facility in June 2017. photographic development all sheets also February 2018. are presently being analyzed dedicated optical microscopes. Current statistics comparable that E373 and...
Despite several promising experimental results, the question whether bound or resonant light neutral nuclei exist is not yet answered beyond doubt. Particularly, existence of which contain more than one hyperon would have a considerable impact on our understanding dense baryonic matter. The E906 experiment was first fully electronic to produce and study double hypernuclei with large statistics. Unfortunately, interpretation measured π−-π− momentum correlation still blurry because...
The BNL-AGS E906 experiment was the first fully electronic to produce and study double hypernuclei with large statistics. Two dominant structures were observed in correlated $π^-$--$π^-$ momentum matrix at (p$_{π-H}$,p$_{π-L}$) = (133,114) MeV/c (114,104) MeV/c. In this work we argue that interpretation of structure terms $^3_Λ$H+$^4_Λ$H pairs is questionable. We show, neither a scenario where are produced after capture stopped $Ξ^-$ by $^9$Be nucleus nor interactions energetic nuclei target...
Abstract The BNL-AGS E906 experiment was the first fully electronic to produce and study double hypernuclei with large statistics. Unfortunately, interpretation of measured π − −π momentum correlation is still blurry because hypothesized production <?CDATA ${}_{\Lambda }^{3}\rm{H}{+}_{\Lambda }^{4}\rm{H}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:msubsup> <mml:mrow /> <mml:mi mathvariant="normal">Λ</mml:mi> <mml:mn>3</mml:mn> </mml:msubsup>...
Over the course of its full lifetime, $\overline{\mbox{P}}$ANDA at FAIR will address physics strange baryons with $S=-2$ in nuclei by several novel and unique measurements. This series experiments start exclusive production hyperon--antihyperon pairs close to their threshold antiproton--nucleus collisions. day-one experiment offers a hitherto unexplored opportunity elucidate behaviour antihyperons nuclei. In intermediate stage, offer possibility search for X-ray transitions from very heavy...
In this work we propose a new method to measure the evolution of neutron skin thickness between different isotopes. We consider antiproton-nucleus interactions close production threshold $Λ\overlineΛ$ and $Σ\overlineΛ$ pairs. At low energies, pairs are produced in p + collisions, while can only be n interactions. Measuring these cross sections provides information on