Carpathian Summer School of Physics 2023

Jul 2, 2023, 3:00 PM → Jul 15, 2023, 8:00 AM Europe/Bucharest

Sinaia, Romania

Livius Trache (IFIN-HH), Robert Tribble (Texas A&M University)

Photos can now be found at https://cloud.nipne.ro/index.php/s/klnSlO4cNiKxsZv 

Password is in the lecture hall on the inside of the door :)

---

Welcome to CSSP23 - Carpathian Summer School of Physics!

The Carpathian Summer School of Physics 2023, the 30^th edition of this school, is scheduled to take place again in Sinaia, from July 2nd (arrival day) to July 15th (departure day), 2023. 

Given the improved conditions from the pandemic of recent years and the need to re-create the opportunities for in-person communication for all in our field, we will once again have this Carpathian school in-person.

The title and topics are being retained from recent past schools: "Exotic Nuclei and Nuclear/Particle Astrophysics. Physics with small accelerators”. The school is part of the ENNAS (European Network of Nuclear Astrophysics Schools) and is recognized by the Division of Nuclear Physics of EPS. It is also supported by the European Horizon 2020 project ChETEC-INFRA (Chemical Elements as Tracers of the Evolution of the Cosmos - INFRAstructures for Nuclear Astrophysics), a European starting community of 32 partner institutions, 

The same format from recent schools will be maintained: a combination of school-like and conference presentations, with 1-2 hour-long invited lectures by senior scientists/professors and 20 minute short student communications. The school is aimed at graduate students, post-docs and young or established researchers. Students from all countries are invited to attend. 

 

Topics include, but are not restricted to:

 

• Exotic nuclei/Nuclear physics with RIBs
• Nuclear physics for astrophysics
• Stellar evolution. Compact stars and supernovae
• Astroparticle physics
• Multi-messenger astrophysics
• Nuclear physics with lasers
• Nuclear astrophysics with small accelerators
• Instrumentation
• Accelerators for medical treatments, radioisotope production and industrial applications

---

cssp23-1st circular.pdf

cssp23-2nd circular - v2.pdf

CSSP23 poster - final.pdf

cssp23_program_short - v8.pdf

Sunday, July 2

Registration

Monday, July 3

Morning Session: Intro to Nuclear Physics, Nuclear Astrophysics

Convener: Dr Livius Trache (IFIN-HH)

1 Giant Resonances: Fundamental Collective Modes of Nuclear Excitation - Charge-Exchange Modes

Speaker: Prof. Muhsin Harakeh (Univ. Groningen)

harekeh_m.pdf

2 Collective Vibrational Modes studied at the Proton Therapy Center CCB in Krakow

The atomic nuclei, although they are quantal objects, may exhibit many features, which are known from the macroscopic world. To one of them belong different types of collective vibration, known as Giant Resonances, or recently studied, and important for the understanding of the creation of elements in the Universe, so called Pygmy Resonances. The studies of the gamma decay of the Giant and Pygmy Resonances continue to be the hot topics, and are conducted by many groups in the world.

Recently this topic became one of the main research subjects at the proton therapy center CCB (Cyclotron Center Bronowice) at IFJ PAN Krakow. The collective vibrations in stable nuclei were excited via the inelastic scattering of the fast (70-230 MeV) protons from the Proteus cyclotron in CCB. The scattered protons were detected in the detector KRATTA (Krakow Array of Triple Telescope Array), providing information of the excitation energy. The high-energy gamma-rays were measured in the 2 PARIS (Photon Array for studies with Radioactive Ion and Stable beams) clusters and 4 large volume LaBr3 scintillators.

In the talk I will summarize the status of the current knowledge of Collective Vibrational Modes (Giant and Pygmy Resonances), I will describe the proton therapy facility in Krakow and the recently achieved results from the studies of the gamma decay of Giant Quadrupole Resonances and Pygmy Resonances, brief description of other research topics conducted at CCB, as well as the research plans for the near future.

In addition, if time permits, I will inform about the status and plans of constructing the PARIS array, being essential for the Collective Vibrational Modes studies in Kakow and other facilities in Europe.

Speaker: Prof. Adam Maj (IFJ PAN)

Maj_Sinaia_2023.pdf

10:50 AM Coffee Break

3 How to probe tensor and spin-orbit forces in atomic nuclei and what for?

Speaker: Dr Olivier Sorlin (GANIL)

carpathian-sorlin-2023.pdf

4 Nuclear structure studies at CERN - ISOLDE

Speaker: Dr Razvan Lica (IFIN-HH)

RazvanLica_ISOLDE-IDS_2023.pdf

1:00 PM Lunch

Afternoon Session

Convener: Alexandra Spiridon (IFIN-HH)

5 First moments of life of fission fragments

Speaker: Dr Catalin Borcea (IFIN-HH)

Borcea - Selected aspects of fission.pdf

3:55 PM Coffee Break

Student Communications

6 Beta-delayed proton decay of 27P

Speaker: Mr Ionut Stefanescu (IFIN-HH)

Discussions

Tuesday, July 4

Morning Session: Astroparticles

Convener: Adam Maj (IFJ PAN)

7 Origin and sources of UHECRs, arrival directions, energy, and mass - Pierre Auger results

We will introduce and review theoretical and phenomenological aspects on acceleration and propagation of ultra-high-energy cosmic rays, gamma-rays and neutrinos.
Model predictions for spectrum, composition and anisotropies of the ultra-high-energy multi-messenger sky will then be put in context with data from the Pierre Auger experiment.

Speaker: Prof. Guenter Sigl (Univ. Hamburg)

uhecr_pheno.pdf

8 Multi-Messenger Astrophysics with the Pierre Auger Observatory (I)

We will review multi-messenger capabilities of the Pierre Auger
Observatory involving searches for high-energy neutrinos and photons from
transient events as well as searches for temporal and/or directional
correlations between different messengers including UHECR. Upper bounds on
the flux of up-going air showers – of the type that was reported by ANITA
- will be presented and used to constrain BSM physics. Finally, we will
discuss future prospects, including pushing down the neutrino detection
threshold of the Auger Observatory.

Speaker: Prof. Karl-Heinz Kampert (Univ. Wuppertal)

10:50 AM Coffee Break

9 Multi-Messenger Astrophysics with the Pierre Auger Observatory (II)

We will review multi-messenger capabilities of the Pierre Auger
Observatory involving searches for high-energy neutrinos and photons from
transient events as well as searches for temporal and/or directional
correlations between different messengers including UHECR. Upper bounds on
the flux of up-going air showers – of the type that was reported by ANITA
- will be presented and used to constrain BSM physics. Finally, we will
discuss future prospects, including pushing down the neutrino detection
threshold of the Auger Observatory.

Speaker: Karl-Heinz Kampert (Univ. Wuppertal)

Kampert-CSSP-2023.pdf

10 Hybrid measurements of UHECRs at the Pierre Auger Observatory, detection techniques

Ultra-high-energy cosmic rays (UHECRs) are extremely rare particles of ordinary matter in the Universe, traveling astronomical distances until reaching the Earth’s atmosphere with energies far beyond those obtained at particle accelerators. When primary cosmic rays interact with atmospheric nuclei, cascading extensive air showers of secondary elementary particles are developed. Consequently, the Earth’s atmosphere is used as a natural calorimeter, where particle interactions take place and traces of developed air showers are observed in different media, like on/under-ground, in water and in air. The Pierre Auger Observatory, the world’s largest cosmic ray experiment on Earth, uses complementary and innovative detection techniques for measuring UHECRs in a hybrid mode. The unprecedented measurement statistics obtained so far at the Auger Observatory will be presented, with emphasis on the current upgrade with improved detectors.

Speaker: Dr Gina Isar (ISS)

CSSP2023-Isar.pdf

1:00 PM Lunch

Afternoon Session

11 Determination of GT+ Strength in fp-shell Nuclei and its Astrophysical Implications

Speaker: Prof. Muhsin Harakeh (Univ. Groningen)

Harakeh_t.pdf

3:55 PM Coffee Break

Student Communications

12 Preliminary results on proton inelastic scattering cross sections on 24Mg

Speaker: Ms Daniela-Mihaela Chiriac (IFIN-HH)

Presentation_Daniela_Chiriac.pdf

13 Neutrino Mass Hierarchy from Supernova Nucleosynthesis of Light Elements and the Roles of Unstable Nuclei

Speaker: Mr Xingqun Yao (Beihang University / NAOJ)

4thJuly_Yao_Sinaia.pptx

Wednesday, July 5

Morning Session: Small Accelerators

Convener: Razvan Lica

14 Applied Physics with MeV Ion Beams

Speaker: Dr Mihai Straticiuc (IFIN-HH)

Straticiuc.pdf

15 Use of ion beams in radiation effects studies

Speaker: Dr Gihan Velisa (IFIN-HH)

velisa-CSSP2023.pdf

10:50 AM Coffee Break

16 Radiofrequency Linear Accelerators (LINAC) (I)

Speaker: Dr David Alesini (INFN-LNF)

Alesini_LINEAR_ACCELERATORS_all_2.pdf

17 Excursions in the 14C record in tree rings document solar flares and other events

Speaker: Dr Timothy Jull (Univ. Arizona)

Jull_CSSP 2023.pdf

1:00 PM Lunch

Afternoon Session

Convener: Dr Mihai Straticiuc (IFIN-HH)

18 Emerging Medical Radioisotopes - what we are looking for?

Speaker: Dana Niculae (IFIN-HH)

3:55 PM Coffee Break

19 Coulomb excitation at intermediate energies

Speaker: Dr Stefana Calinescu (IFIN-HH)

SCalinescu-COULEX.pdf

20 Radioprotection issues related to accelerators

Speaker: Dr Hermann Anton Schubert (IFIN-HH)

Thursday, July 6

Morning Session: Nuclear Physics with lasers

Convener: Olivier Sorlin (GANIL)

21 Dynamics of fusion in laser produced non-equilibrated plasmas (I)

Speaker: Dr Aldo Bonasera (TAMU - Cyclotron Institute)

sinaia23_bon-1.pdf

22 Nuclear astrophysics activities in Korea

Speaker: Prof. Kevin Hahn (Institute for Basic Sciences)

NAP-Hahn.pdf

10:50 AM Coffee Break

23 Radiofrequency Linear Accelerators (LINAC) (II)

Speaker: David Alesini (INFN-LNF)

24 Design Status of Radioactive Ion Facility at IFIN-HH (RIF@IFIN)

Speaker: Dr Florin Negoita (IFIN-HH)

Negoita__RIF@IFIN.pdf

1:00 PM Lunch

Friday, July 7

Morning Session: ELI-NP session

Convener: Muhsin Harakeh (Univ. Groningen)

25 The 10 PW laser system at ELI-NP - results and perspectives

Speaker: Dr Ioan Dancus (ELI-NP)

26 Laser characterization developments at the 2x10 PW laser facility of ELI-NP

Speaker: Dr Daniel Ursescu (ELI-NP)

Ursescu-CarpathianSSP-2023-short-web.pdf

10:50 AM Coffee Break

27 Nuclear Physics with the exotic ultra-intense particle and radiation beams from the 10 PW High-Power Laser System at ELI-NP, the learnings so far and future perspectives'

Speaker: Dr Klaus Spohr (ELI-NP)

28 Laser driven ion and electron acceleration with 1 PW laser beams at ELI-NP

The commissioning of the 1 PW experimental area has been successfully performed at ELI-NP with a TNSA experiment on proton acceleration and a LWFA experiment on electron acceleration. A brief introduction to the typical laser-driven acceleration mechanisms will be done, followed by the description of the typical laser parameters, setups, diagnostic and simulation tools and results obtained. In the TNSA experiment, the laser beam was focused down to a spot size of ~3.5 µm FWHM, reaching a peak intensity of the order of I0 > 1021 Wcm-2. The central wavelength of the laser beam is 810 nm, the laser pulse had a duration of less than 25 fs, and the maximum energy delivered on target was 24 J. The laser interacted with solid targets of various thicknesses, ranging from tens of nm to micrometers, and materials, such as plastic, metal, and DLC. Also, a setup configuration with a plasma mirror was employed to improve the temporal contrast of the laser. The wide target and laser parametric scan were undertaken to grab a large amount of data in different conditions for a better understanding of the performance of the laser system. A wide range of laser and plasma diagnostics were deployed to characterize the laser beam and the by-products of the interaction on a shot-to-shot base. For the LWFA experiment, the laser beam was focused with a 5 m long focusing off-axis parabolic mirror to a spot size of ~25 um FWHM, reaching a peak intensity, I0, in the range of 1019 – 1020 Wcm-2. Two different gas target systems, jet nozzle and gas cell, and with different types of gas admixture were used to investigate the electron acceleration. An extensive set of diagnostics were also used to measure the most relevant parameters of the interaction, e.g., the accelerated electron spectra, plasma density, and X-ray emission. The potential applications and future work will be also presented.

Speaker: Dr Mihail Cernaianu (ELI-NP)

1:00 PM Lunch

Afternoon Session: ELI-NP session

Convener: Dr Calin A Ur (IFIN-HH)

29 Dynamics of fusion in laser produced non-equilibrated plasmas (II)

Speaker: Dr Aldo Bonasera (TAMU - Cyclotron Institute)

3:55 PM Coffee Break

30 Nuclear resonance fluorescence: how to reveal secrets of a nuclei, mysteries of ancient empires and astrophysical enigmas ?

Speaker: Dr Dmitry Testov (ELI-NP)

testov_sinaia2023_public.pdf

31 Status of ELI Silicon Strip Array (ELISSA) and future perspectives

Speaker: Dr Haridas Pai (ELI-NP)

Pai_CSSP23_U.pdf

32 Laser-based high sensitivity and low dose X-ray phase-contrast imaging at ELI-NP

Speaker: Ms Nicoleta Safca (ELI-NP)

Nicoleta_Safca.pdf

Saturday, July 8

Morning Session: Outreach Session

Convener: Timothy Jull (Univ. Arizona)

33 Natural Radioactivity

Speaker: Dr Ákos Horváth (EL Univ Budapest)

a horvath Natural radioactivity.ppt

34 Nuclear astrophysics activities in Korea (II)

Speaker: Prof. Kevin Hahn (Institute for Basic Sciences)

CSSP-Outreach-Hahn.pdf

10:50 AM Coffee Break

35 TBA

Speaker: Prof. Roland Diehl (MPE Garching)

NucleosynGammaRays_RDiehl_CSSP.pdf

12:30 PM Lunch

Round Table: Science in times of crises

Convener: Livius Trache (IFIN-HH)

36 Science in times of crises - Free Discussion

Outreach - Crises.pptx

3:00 PM Coffee Break

37 Science education on Astroparticle Physics with the Pierre Auger Observatory

A lot of effort has been invested so far in education activities on the physics studied at the Pierre Auger Observatory. Enthusiast scientists have joined together to inform, engage and educate by developing inspiring lectures and hands-on activities. Motivated students are therefore attracted to follow careers in science, and thus actively follow or discover their passion. Teachers are also inspired to advance their knowledge and broaden their practices in the class. Introducing the interdisciplinary field of Astroparticle Physics, with emphasis on large-scale experiments on the ground and astrophysical phenomena in the Universe, is always having an excellent impact on the audience. Science awareness also gets very successful in society, where scientists occasionally get together in public areas, like malls and parks, within local science festivals or European Researchers Nights, and engage with citizens of all ages. Science education has thus an important role in continuous learning, developing skills, advanced thinking, problem-solving and collaborative work.
A few of the best practices in science education with the Pierre Auger Observatory will be
presented.

Speaker: Dr Gina Isar (ISS)

OutreachTalk-CSSP2023-Isar.pdf

38 TBA

Speaker: Dr Mihai Straticiuc (IFIN-HH)

Monday, July 10

Morning Session: Nuclear Astrophysics (I)

39 The r-process nucleosynthesis: astrophysics and nuclear physics aspects (I)

Speaker: Dr Stéphane Goriely (Université Libre de Bruxelles)

23-CSSP_Goriely.pdf

40 The r-process nucleosynthesis: astrophysics and nuclear physics aspects (II)

Speaker: Dr Stéphane Goriely (Université Libre de Bruxelles)

10:50 AM Coffee Break

41 Electron capture in stars

Speaker: Prof. Karlheinz Langanke (GSI Darmstadt)

42 Explosive Stellar Deaths and Isotopic Anomalies in Meteorites

This talk will discuss the connection between nuclear and particle effects in supernovae and isotopic effects in planetary bodies in the Solar System.

Speaker: Dr Bradley Meyer (Clemson University)

1:00 PM Lunch

Afternoon Session: Nuclear Astrophysics (II)

43 Equations of state for neutron stars and binary neutron star mergers

Speaker: Dr Adriana Raduta (IFIN-HH)

3:55 PM Coffee Break

44 Monte Carlo modeling of laser Compton scattering gamma-ray beams

Speaker: Dr Dan Filipescu (IFIN-HH)

DFilipescu_CSSP23_online.pdf

45 GDR photoneutron cross sections for 208Pb

Speaker: Dr Ioana Gheorghe (IFIN-HH)

IGheorghe_CSSP23_online_v2.pdf

Tuesday, July 11

Morning Session: Nuclear Astrophysics (III)

Convener: Bradley Meyer (Clemson University)

46 Electron screening of nuclear reactions

I will discuss the longstanding puzzle of electron screening of nuclear reactions in the laboratory and within stars. A comparison between existing experimental data and multiple theories will be highlighted. I will focus on the modeling of nuclear/atomic reactions including (a) excitation, (b) ionization, (c) atomic transfer of electrons, (d) the role of stopping power at low energies and (e) applications of mean-field theories to electron screening in the stellar environments.

Speaker: Carlos Bertulani (TAMU - Commerce)

Bertulani-Romania-2023.pdf

47 What is really new at LHC energies?

Rich experimental information obtained at AGS, RHIC and LHC in terms of
yield, average transverse momentum, transverse energy and suppression for light
flavor hadrons, is used to compare their dependence on the particle density per unit of
rapidity and unit of transverse overlapping area with predictions of phenomenological
models. At LHC energies such studies are extended to pp collisions and the comparison
with Pb-Pb results is presented.

Speaker: Prof. Mihai Petrovici (National Institute for Physics and Nuclear Engineering (IFIN-HH))

mp_Sinaia_2023.pdf

10:50 AM Coffee Break

48 Impact of shape coexistence on the dynamics of proton-rich and neutron-rich medium mass nuclei

Medium mass nuclei around the N = Z line offer new insights into the coexistence phenomena and the fundamental symmetries. The nuclei dominated by shape coexistence and mixing are of particular interest due to the open questions concerning the nature of the observed isomers, the irregularities in the excitation spectra, and their feeding by the β decay of the neighboring nuclei. On the neutron-rich side in the A∼100 region nuclei manifest exotic phenomena produced by shape coexistence including allowed and forbidden β-decay of low- and intermediate-spin isomers. The impact of shape coexistence on the dynamics of proton-rich and neutron-rich medium mass nuclei is investigated within the beyond-mean-field complex Excited Vampir variational model using an effective interaction derived from a nuclear matter G matrix based on the charge-dependent Bonn CD potential in large model spaces. Results on the comprehensive treatment of different identified characteristics will be discussed and compared with the available experimental data.

Speaker: Prof. Alexandrina Petrovici (IFIN-HH)

49 Underground nuclear astrophysics at Felsenkeller and the ChETEC-INFRA project for nuclear astrophysics

Speaker: Dr Daniel Bemmerer (HZDR)

Bemmerer_Sinaia.pdf

1:00 PM Lunch

Afternoon Session

50 Nuclear data: from fundamental research to applications

Speaker: Dr Alexandru Negret (IFIN-HH)

3:55 PM Coffee Break

51 Bayesian Inference of the Dense Matter Equation of State

Speaker: Dr Mikhail Beznogov (IFIN-HH)

Student Communications

52 Enhanced electron capture calculations

We thoroughly investigate electron capture (EC) ratios for a wide range of atomic numbers. The study utilizes a comprehensive computational method that considers important atomic effects such as electron screening, overlap and exchange corrections, shake-up and shake-off processes. The electron wave functions are computed with the Dirac-Hartree-Fock-Slater (DHFS) method, which was chosen after conducting a systematic comparison with other methods and experimental data in terms of binding energies, atomic relaxation energies, and Coulomb amplitudes. An important ingredient of the calculations is an energy balance that utilizes atomic masses, eliminating the need for approximations in determining the electron total binding energy and enabling a more precise determination of the neutrino energy. Consequently, the predicted capture ratios obtained through this method exhibit improved agreement with experimental data, particularly for low-energy transitions. Furthermore, in addition to considering the uncertainties on the measured Q values and nuclear energies, this paper also incorporates the uncertainties on the atomic relaxation energies to provide a more comprehensive assessment of the uncertainties of the EC observables. Finally, the study presents detailed results for nuclei of practical significance in nuclear medicine and exotic physics investigations involving liquid Xenon detectors (67Ga, 111In, 123I, 125I, and
125Xe).

Speaker: Mr Vasile-Alin Sevestrean (IFIN-HH)

Sevestrean_Vasile_Alin.pdf

53 Electron screening of nuclear reaction

Speaker: Ms Dijana Đukić (Jožef Stefan Internationale Postgraduate School)

Dijana Đukić - Sinaia 2023.pdf

Wednesday, July 12

Morning Session

54 Nuclear instrumentation for studies of exotic nuclei

Speaker: Dr Stefanos Paschalis (University of York)

55 Nuclear Physics Instrumentation past and present

In this talk I will discuss the evolution in the Nuclear Instrumentation (small scale experiments) over the last 20 years. I will start from the standard NIM detection system and evolve towards todays more and more digitized electronics and DAQ systems. The number of detectors and the size of the equipment has changed tremendously, but in partly in opposite direction to each other. However, in reality the structure/logic how it works has not changed that much, but it has in great deal become black boxes for the user. Examples from HIE-ISOLDE and R3B will be used.

Speaker: Dr Olof Tengblad (IEM - CSIC)

Tengblad-Carpathian-School-2023-compressed.pdf

10:50 AM Coffee Break

56 Coulomb Barrier Reactions of halo Nuclei

Speaker: Dr Maria Borge (CSIC)

Borge-light nuclei-reduced-v2.pptx

57 Structure of the neutron-rich N=126 nuclei: challenges and opportunities

Speaker: Dr Zsolt Podolyak (University of Surrey)

1:00 PM Lunch

Afternoon Session

58 Overview of nuclear structure activities at the Bucharest 9MV Tandem accelerator

Since 2012, the ROSPHERE spectrometer is the main instrument to perform gamma-ray spectroscopy at the Bucharest TANDEM. The flexible configurations of ROSPHERE allows to perform lifetime measurements for excited nuclear states using the RDDS, DSAM and fast-timing methods, thus providing a niche thematic for the studies performed here. A second niche was the use of transfer reactions induced by heavy ions as a way to populate and study selectively specific states in the residual nuclei.

Recently, a new high energy configuration of ROSPHERE was introduced, making use of the large volume LaBr3:Ce and CeBr3 detectors from ELIGANT instrument of the Extreme Light Infrastructure – Nuclear physics (ELI-NP) facility to perform gamma-ray spectroscopy studies with high efficiency and good resolution in an energy range up to 15 MeV.

Recent results from the 2022 experimental campaign will be shown with emphasis on the new opportunities available at the ROSPHERE spectrometer.

Speaker: Dr Constantin Mihai (IFIN-HH)

C.Mihai-CSSP.ppt

59 New methods and detectors for measuring doses in UHDR beams

Speaker: Dr Radu Alin Vasilache (Canberra Packard SRL)

Vasilache_Sinaia.PPTX

4:00 PM Coffee Break

60 TBA

Speaker: Dr Dana State (IFIN-HH)

Student Communications

61 Coexistence of Nucleosynthesis Products From r-, i-, and s-processes in the Collapsar Jet

Speaker: Mr Zhenyu He (Beihang University)

ZH_20230712_CSSP.pptx

62 Carbon Burning towards the zero Energy limit: An α-cluster Study in Imaginary Time

Speaker: Mr Theodoros Depastas (TAMU - Cyclotron Institute)

Sub-barrier 12C + 12C Fusion-theo.pptx

63 Cross section measurement for neutron induced reaction

Speaker: Dr Aman Gandhi (IFIN-HH)

CSSP23 - Aman Gandhi.pptx

Thursday, July 13

Morning Session

64 Extremely neutron-rich nuclei explored with rare-isotope beam experiments

Speaker: Dr Takashi Nakamura (Tokyo Institute of Technology)

Nakamura_Romania_pub.pdf

65 Indirect methods to directly explore the Gamow window

Speaker: Dr Marco La Cognata (INFN-LNS)

lacognata-carpathian-2023-1.pdf

10:50 AM Coffee Break

66 The PANDORA project: towards the first in-plasma beta - decay measurements of selected s – process nuclei.

Speaker: Dr Domenico Santonocito (INFN-LNS)

67 Multi-messenger astronomy in laboratory plasmas: the PANDORA project towards kilonovae first experimental investigations

Speaker: Dr Angelo Pidatella (INFN-LNS)

1:00 PM Lunch

Friday, July 14

Morning Session

68 Probing photo-nuclear reactions with relativistic heavy ions

The aim of relativistic heavy ion accelerators is to study nuclear matter under extreme conditions. However, very strong electromagnetic fields for a very short time duration are present in distant collisions with no nuclear contact. Such strong fields can lead to nuclear fragmentation through the excitation of giant resonances or direct dissociation of light nuclei. This process can be used to study nuclear structure properties which are not accessible by other means. The creation of particles is also of interest due to the large cross sections, specially the case of electron-positron pair creation. Meson production and the search for new exotic mesons has been an area of strong interest in recent years. I will discuss the application of the EM fields generated by relativistic heavy ions in a plethora of problems of actual interest in physics.

Speaker: Prof. Carlos Bertulani (TAMU - Commerce)

Bertulani-Romania-2-2023.pdf

69 Deep underground laboratory measurement of 13C(alpha,n)16O in the Gamow windows of the s- and i-processes

Speaker: Dr Xiaodong Tang (Institute of Modern Physics, CAS)

CSSP2023_tang.pdf

10:50 AM Coffee Break

Student Communications

70 Constraints on Size of Extra Compactified Dimensions from Compact Star Observations

Speaker: Ms Anna Horváth (Wigner Research Centre for Physics /E.L. Univ Budapest)

AnnaHorvath_CSSP23.pdf

71 Pair production as a probe for the dynamics of nuclear fission and α decay

Speaker: Mr Thomas Settlemyer (TAMU - Cyclotron Institute)

72 Experimental study of alpha-induced reactions

Heavier p isotopes are believed to be produced through the γ-process. The path of γ-process can be modelled with network calculations. These calculations include about 20000 reactions on more than 2000, mostly unstable nuclei, many of these reactions involves alpha particles. Theoretical cross sections of reactions involving alpha particles are found to be very sensitive to the alpha-nucleus optical potential, which is not known well enough at low, astrophysical energies. This potential can be studied experimentally by measuring the cross section of (α,n) reactions close above the reaction threshold. One
of the aims of my PhD work is thus to measure the cross section of the 122Te(α,n)125Xe, 124Te(α,n)127Xe and 130Te(α,n)133Xe reactions for which no data exist in literature. The half-life of the produced Xe isotopes allows us to use the activation technique. The experiments are done by using the cyclotron accelerator of ATOMKI. In this talk details of the experimental technique and the preliminary results of the measurements are presented.
As a second project of my PhD, the study 29Si(p,γ)30P reaction has been started. This reaction has an impact on the 29Si abundance in classical novae. The aim of this study to measure the direct capture cross section and determine the absolute resonance strength of the 𝐸𝑟 𝑐.𝑚.=403 keV resonance. For these measurements enriched silicon targets are used. The targets were created with thermal evaporation and several stability tests were made. Cyclic activation was the measurement technique. Some of the first direct capture and resonance strength measurements have already been done and the analysis of the
collected data is in progress. In this talk the experimental method will be presented shortly.

Speaker: Mr Zsolt Mátyus (Institute for Nuclear Research)

Mátyus_CSSP23_Sinaia.pdf

Closing

Convener: Livius Trache (IFIN-HH)

1:00 PM Lunch