2026 R-MATRIX Workshop on Methods and Applications

Oak Ridge National Laboratory
Monday, July 13^th to Friday, July 17^th, 2026

Registration is $200.  Completing this online form will register you for the 2026 R-MATRIX Workshop on Methods and Applications. Registration closes on June 1^st, 2026 for non-US citizens and on June 15^th, 2026 for US citizens.

The 2026 R-matrix workshop—held at Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, USA on July 13–17, 2026—will focus on several topics specific to the phenomenological R-matrix analysis of nuclear reactions with particular emphasis on neutron induced reactions. Among these,

•  theoretical advances such as breakup reaction models, fission channel in the 
  R-matrix framework, secondary gamma reactions, relativistic R-matrix models, 
  primary gammas, polarization observables,
• experimental techniques,
• recent R-matrix evaluation work having direct impact to application topic areas 
  ranging from criticality safety applications and astrophysics,
• statistical methods of resonance parameters applied to unresolved resonance 
  region

Novel optimization techniques devoted to uncertainty quantification and computational methods implemented in R-matrix codes to improve nuclear data evaluation productivity will be one of the goals set for the 2026 R-matrix workshop.

The R-matrix workshop is an event taking place every three years and its aim is to bring together students, early career researchers and specialists in the field utilizing the R-matrix formalism. The workshop structure will be set up such that different topics for in-depth-analysis concepts are offered in each session.

This workshop is the third in person meeting of the R-matrix workshop series. Previousin person meetings were held at Ohio University (OU) in 2023 and in Santa Fe, New Mexico organized by Los Alamos National Laboratory (LANL) in 2016 where the R-matrix workshop series started.
 

Payments Accepted: You can register for the conference here by using a credit card. We accept Visa, MasterCard, Discover or American Express.

Please note: The University of Tennessee Conferences and Non-Credit Programs is responsible for processing all registration fees for this event.

Workshop Questions/Refunds/Cancellation Policy: Workshop fees are non-refundable. Program questions should be directed to Marco Pigni, pignimt@ornl.gov and Lynsey Schreiner, schreinerlr@ornl.gov.

University of Tennessee employees please do not use a procurement card for your registration fee if you will be asking for a UT reimbursement for this meeting. Please email Conferences@utk.edu to begin the registration process and to pay with a departmental account. Our office will initiate the payment and begin the registration process for you.  For any credit card refunds processed due to not paying with a departmental account number there will be a 6% credit card processing fee based on the sale amount. The 6% fee will be withheld from the refund to the card used.