Key Reactions in Nuclear Astrophysics

12 Dec 2022, 09:00 → 16 Dec 2022, 19:00 Europe/Rome

Sala Leonardi (ECT*)

Aurora Tumino (Facoltà di Architettura e Ingegneria Università degli Studi di Enna “Kore” & INFN-LNS), Carlos Bertulani (Department of Physics Texas A&M University-Commerce), Josè Jordi (Dept. Physics Technical University of Catalonia EEBE-UPC, Barcelona/E), Livius Trache (“Horia Hulubei” National Institute for Physics and Nuclear), Roland Diehl (Max Planck Institut für extraterrestrische Physik , Garching/D)

The workshop intends to discuss existing results in nuclear astrophysics and to identify key reactions for which the stable and RIB facilities need to assess information of interest for nuclear astrophysics. Physicists working on stellar modeling and observations (astronomy, cosmochemistry …) together with theoreticians and experimentalists working on nuclear reactions will meet with the purpose of identifying stellar scenarios needing nuclear reaction data that make sizable difference in stellar evolution and the optimal methods to obtain them.

The purpose of this workshop is to discuss our current knowledge and questions from the existing results, and to identify key reactions for stable and radioactive ion beam (RIB) facilities where we need to assess information of interest for nuclear astrophysics. From existing sensitivity studies we can list some of the critical reactions that are not known to sufficient precision or require additional experimental studies, e.g. 18F(p,a), 30P(p,g), 25Al(p,g), for novae; carbon and oxygen burning, 23Na(a,p)26Mg, 44Ti(α,p)47V affecting nucleosynthesis and energetics in thermonuclear supernovae; 85Kr(n,g) for the s-process path in AGB stars; 18Ne(a,p)21Na, 18Ne(a,d)19Ne for the ignition of type I X-ray bursts. Similar lists exist for other astrophysical scenarios. Nuclear astrophysics will greatly benefit from the proposed expert discussions between experimentalists and theoreticians to assess the importance and feasibility of key reaction networks.

Discussion will be also focused on reliable tests using direct as well as indirect approaches for nuclear astrophysics and to validate the very existence of many RIB facilities which rely on key reactions as one of their main areas of research. Moreover, once new/improved rates are obtained, stellar modelers will check their impact in the different astrophysical environments of interest with their state-of-the-art codes.

ECT_Poster_final.pdf

YouTube Channel

Monday 12 December

09:20 → 11:00 Morning Session -1: Chairman: Bradley Meyer

09:25 Welcome by the organizers

09:40 The never ending interplay between the stellar energy sources and the chemical evolution of the Universe: from the first hypothesis of Von Helmholtz to BBFH

Speaker: Alessandro Chieffi (INAF & INFN)

10:20 17O+p and 26Al+p reaction rates, H-burning and stellar masses

Speaker: Sara Palmerini (INFN Perugia & University of Perugia)

PALMERINI-KRINA22.pdf

11:00 → 11:10 Discussion

11:10 → 11:40 Coffee break

11:40 → 13:00 Morning Session -2: Chairman: Ivica Friščić

11:40 New frontiers in nuclear astrophysics using indirect techniques: the Trojan horse method

Speaker: Marco La Cognata (INFN-LNS)

talk-trento-2022-lacognata.pptx

12:20 Experimental results on 12C+12C fusion reaction with Stella

Speaker: Marcel Heine (Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg)

etc2022_marcelHeine_v2.pdf

13:00 → 14:30 Lunch break

14:30 → 15:50 Afternoon Session -1: Chairman: Livius Trache

14:30 Study of ion-ion fusion mechanisms at sub-barrier energies for nuclear astrophysics

Speaker: Alexandra Spiridon (“Horia Hulubei” National Institute for Physics and Nuclear)

15:10 Direct measurement of the 19F(p,a)16O reaction at astrophysical energies using silicon strip detector arrays

Speaker: Giovanni Luca Guardo (INFN-LNS)

Talk_Guardo.pdf

15:50 → 16:20 Coffee break

16:20 → 17:40 Afternoon Sessione -2: Chairman: Andreas Best

16:20 High-precision mass measurements for nuclear astrophysics

Speaker: Maxime Mougeot (University of Jyväskylä)

KRINA_workshop_2022.pdf

17:00 Search for Supernova R-process Actinides in Fossilized Reservoirs

Speaker: Iuliana Stanciu (IFIN-HH, TUM)

17:40 → 18:00 Discussin

20:30 → 21:30 Welcome Dinner @ Antico Pozzo | Vicolo della Sat

Tuesday 13 December

09:30 → 10:50 Morning Session -1: Chairman: Alessandro Chieffi

09:30 Key (nuclear) reactions for astroparticle studies

Speaker: Oscar Straniero (INFN)

10:10 Key nuclear reactions: a stellar modeler perspective

Speaker: Sergio Cristallo (INAF - Osservatorio Astronomico d'Abruzzo)

cristallo_2022_KEY_ECT.pdf

10:50 → 11:20 Coffee break

11:20 → 12:40 Morning Session -2: Chairman: Carlos Bertulani

11:20 9C+9Be optical potential

Speaker: Angela Bonaccorso (INFN Sezione di Pisa)

AB_Trento_2022.pdf

12:00 Calculation of light nuclei sub-barrier fusion cross section in an imaginary time-dependent mean field theory

Speaker: Aldo Bonasera (Texas A&M,USA and LNS-INFN, Italy)

12:40 → 13:00 Discussion

13:00 → 14:30 Lunch break

14:30 → 15:50 Afternoon Session -1: Chairman: Sara Palmerini

14:30 Exploring neutron induced reactions of astrophysical interest via THM

Speaker: Livio Lamia (INFN-LNS & UniCT)

15:10 ANC method for nuclear astrophisycs: from early to late stages nucleosynthesis

Speaker: Giuseppe D'Agata (Università degli Studi di Catania - Dipartimento di Fisica e Astronomia "Ettore Majorana" & Laboratori Nazionali del Sud - LNS INFN)

15:50 → 16:20 Coffee break

16:20 → 17:40 Afternoon Session -2: Chairman: Luca Guardo

16:20 Status and progress of the PANDORA plasma trap: a facility to investigate on atomic and nuclear inputs for key nucleosynthesis branchings

Speaker: Angelo Pidatella (INFN - LNS)

ECT_Pidatella_PANDORA.pptx

17:00 Numerical estimation of in-laboratory plasma opacity resembling KN plasma ejecta in the framework of the PANDORA project

Speaker: Matteo Bezmalinovich (Ph.D. student INAF-OAAb e Università Sapienza Roma)

ECT_Workshop_Trento_Matteo_Bezmalinovich.pptx

17:40 → 18:00 Discussion

Wednesday 14 December

09:30 → 10:50 Morning Session -1: Chairman: Marco La Cognata

09:30 LUNAMV

Speaker: Gianluca Imbriani (University of Naples Federico II)

10:10 Future studies of the 14N(p,g)15O reaction at LNGS

Speaker: Antonio Caciolli (UNIPD and INFN)

10:50 → 11:10 Coffee break

11:10 → 12:30 Morning Session -2: Chairman: Livio Lamia

11:10 (22Ne(a,n)) Measurement of 22Ne+alpha reactions at LUNA MV

Speaker: Andreas Best (University of Naples Federico II)

Trento-Best.pdf

11:50 Key nuclear reactions investigated at LUNA - 400 kV

Speaker: Rosanna Depalo (Universitò degli Studi di Milano and INFN Milano)

12:30 → 14:00 Lunch break

14:00 → 18:00 Social Trip

Excursion to Rovereto: Visit of “The Kilometer of Wonder”, Casa Depero, Distillerie Marzadro

Thursday 15 December

10:00 → 10:40 Morning Session -1: Chairman: Roland Diehl

10:00 Directed, Acyclic Reaction Networks and Applications to Isotopic Abundances in Meteorites and Metal-Poor Stars

Speaker: Bradley Meyer (Clemson University)

Meyer.pptx

10:40 → 11:10 Coffee break

11:20 → 12:40 Morning Session -2: Chairman: Gianluca Pizzone

11:20 Key reaction studies for s-process in massive stars using transfer reactions

Speaker: Faïrouz Hammache (IJCLab)

12:00 Neutron-induced reactions using the TexAT TPC: neutron inelastic upscattering in 12C

Speaker: Jack Bishop (Texas A&M University)

12:40 → 13:00 Discussion

13:00 → 14:30 Lunch break

14:30 → 15:50 Afternoon Session -1: Chairman: Lucio Gialanella

14:30 Nuclear Astrophysics With (Fast) AT-TPCs at the High Intensity Frontiers

Speaker: Moshe Gai (University of Connecticut)

Gai_ECT_KRINA_15Dec22.pdf

15:10 16O(e,e'a)12C reaction: a new way to improve the precision of the 12C(a,g)16O astrophysical S-factor

Speaker: Ivica Friščić (University of Zagreb)

KRINA_IF_2022.pdf

15:50 → 16:20 Coffee break

16:20 → 17:40 Afternoon Session -2

16:20 Nuclear Astrophysics at the Felsenkeller

Speaker: Eliana Masha (Helmholtz-Zentrum Dresden-Rossendorf e.V. (HZDR))

17:00 Laser induced Coulomb explosions in the plasma

Speaker: Dario Lattuada

17:40 → 18:00 Discussion

20:30 → 21:25 Social Dinner

Friday 16 December

09:30 → 10:50 Morning Session -1: Chairman: Fairouz Hammache

09:30 Studies on RI-involving astrophysical reactions with CRIB

Speaker: Hidetoshi Yamaguchi (Center for Nuclear Study, the University of Tokyo)

10:10 Precision studies with stored exotic nuclei in the realm of nuclear astrophysics

Speaker: Yury Litvinov (GSI Darmstadt)

10:50 → 11:20 Coffee break

11:20 → 12:00 Morning Session -2: Chairman: Aurora Tumino

11:20 Nuclear astrophysics with radioactive ion beams at CIRCE: 7Be(p,gamma)8B

Speaker: Lucio Gialanella (DMF Università della Campania e Istituto Nazionale di Fisica Nucleare)

12:00 → 12:30 Discussion and Concluding Remarks

12:30 → 14:00 Lunch break