Quasi-Free Scattering with Radioactive-Ion Beams: QFS-RB 19

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Av. Dr. Francisco Loup, 1109 - Praia de Maresias, São Sebastião - SP, 11628-115, Brazil

Maresias, SP 11600-000


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4th International Workshop on Quasi-Free Scattering with Radioactive-Ion Beams: QFS-RB 19

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13-18 October 2019, Maresias, Sao Paulo, Brazil



Recent experimental developments at radioactive-beam facilities lead to the capability of measuring quasi-free scattering (QFS) reactions in full kinematics and with high resolution with unstable short-lived nuclei. A fast growing number of results is becoming available demonstrating the large potential of QFS reactions in inverse kinematics to study the single-particle structure of nuclei, cluster phenomena, correlations including short-range correlations, as well as unbound nuclei beyond the driplines. Further extensions of the applications of QFS are being proposed and partly used already, while the next-generation of instrumentation for QFS experiments with radioactive beams is being developed at facilities like R3B at GSI/FAIR and SAMURAI at the RIBF. This goes along with a fast developing progress in reaction theory as well as in nuclear-structure theory, which paves the road towards a quantitative understanding of nuclear properties from the experimental observables.

The topics of the workshop will include:

• Quasi-free scattering reactions with hadrons and electrons as probes

• Reaction theory of quasi-free scattering reactions

• Nuclear structure and spectroscopic factors

• Nucleon-nucleon and cluster correlations in nuclei

• Nuclei at and beyond the drip lines

• Polarization observables

• Quasi-free scattering with radioactive beams: status and future prospects

• Instrumentation for quasi-free scattering in inverse kinematics


The workshop will be the fourth in a series of international workshops dedicated to the topic of applying QFS in inverse kinematics with radioactive beams, which started 2008 in Trento (Italy), with following workshops in the Azores (Portugal), and York (UK). The 2019 workshop will be held in Maresias, Brazil. Brazil has a long tradition reaction theory, playing a leading role in understanding reactions with exotic nuclei and can be considered as one of the birthplaces of quasi-free scattering with the ground-breaking work of G. Jacob and T. Maris. It is only fitting to have this edition of our workshop in Brazil.

Accommodation: Maresias Beach Hotel (

The hotel is located in the seaside village of Maresias about 3 +1/2 hours by car from São Paulo. Rooms have been pre-reserved for a special rate. The transport from the São Paulo international airport in Guarulhos to the Hotel, a three-hour ride, will be organized by the workshop.

IMPORTANT: Please mention the conference code NEO19 (Nuclear Event October 2019) to make the reservation. The reservation should be made through the e-mail:

As of December 2018, the hotel provides a rate of 710 Reais per night, which covers a room (overlooking the sea) and full board (breakfast, lunch and dinner) for the whole duration of the event. This value corresponds today to 158 Euros or US$ 177 per day (as of Dec/11/2018 - please notice that exchange rates have been volatile lately.) Cheaper rooms (not overlooking the sea) are also available.

Registration and important dates:

• December 15th 2018 - Registration will open

• February 15th 2019 - 2nd and final circular with detailed information

• March 31st 2019 - Registration and reservation of pre-booked hotel rooms ends

There will be a Workshop fee of 100 € to be paid in cash at the registration desk upon arrival.

Air Travel: São Paulo is very well connected to all big cities in the world with daily flights. We recommend early booking of plane tickets.

Social events:

Reception: Sunday, October 13th

Workshop Dinner: Wednesday, October 16th

The Workshop will end Friday, October 18th after lunch


Mahir Hussein (Univ. São Paulo), Chair

Thomas Aumann (TU Darmstadt, GSI), Chair

Carlos Bertulani (Texas A&M-Commerce)

Valdir Guimarães (Univ. São Paulo)

Or Hen (MIT)

Renato Higa (Univ. São Paulo)

Alexandre Obertelli (TU Darmstadt)

Tomohiro Uesaka (RIKEN)

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Av. Dr. Francisco Loup, 1109 - Praia de Maresias, São Sebastião - SP, 11628-115, Brazil

Maresias, SP 11600-000


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