Postdoctoral Researcher in Hadron Physics and Machine Learning

Do you want to work with machine learning methods in hadron physics, supported by competent and friendly colleagues in an international environment? Do you want to work in a department that focuses on sustainable employment and offers secure, favorable working conditions? Welcome to apply for a postdoctoral position at Uppsala University.

One of the biggest challenges in modern physics is to understand the strong force that binds quarks and gluons into hadrons, such as protons and neutrons. This is the overarching question in hadron physics, a broad and dynamic research field.

Our research group is internationally renowned for our innovative studies of hyperons – the heavier and unstable siblings of protons – and for our scientific and technical contributions to international experiments such as BESIII in China and the future PANDA in Germany. Recently, we also joined the Belle II experiment in Japan, where we are part of a European network where machine learning techniques in particle and hadron physics play an important role.

The research group is part of the Department of Nuclear Physics at Uppsala University, which actively works to create an inclusive work environment where employees have the chance to grow and develop. Individual initiatives in the work are encouraged, as well as active participation in shaping the department's activities. We offer support for young researchers to qualify for a continued career, and our many international collaborations provide access to a large network.

Job Responsibilities

This postdoctoral position revolves around particle tracking with deep learning within the Belle II experiment in Japan. The group has previously developed a geometric deep learning machinery for PANDA that has proven successful in reconstructing long-lived hyperons and slow pions. These particles present a particular challenge for Belle II, making GDL an interesting candidate for improving track reconstruction within the Belle II software. In addition, we encourage individual ideas and initiatives.

The postdoctoral researcher is expected to contribute to the general software development within Belle II, contribute to the experiment's common tasks such as beam time service, and assist in mentoring students and PhD candidates. Opportunities for business trips to KEK, Japan, and to our European partners are offered.

Qualifications

A PhD in physics or a foreign degree deemed equivalent to a PhD in physics. The degree must have been obtained by the time the employment decision is made. Primarily, candidates who have completed their degree within the last three years will be considered. In calculating the three-year timeframe, the last application date is the starting point. If there are special reasons, the degree may have been obtained earlier. Special reasons include leave due to illness, parental leave, or trust assignments within trade union organizations, etc.

For the specific tasks, a solid background in particle tracking and machine learning techniques is required. Excellent oral and written skills in English are a must.

Desirable/meritorious

Experience working within Belle and/or Belle II as well as programming languages such as Python and C++ is meritorious. Furthermore, experience in writing scientific papers and mentoring students is valuable.

Application should include:

CV, copies of relevant transcripts and degrees, a copy of or a link to the doctoral thesis, a publication list explaining the applicant's own contributions, a list of references (e.g., previous supervisors), and any other documents the applicant wishes to attach. Additionally, we request a two-page statement of the applicant's research interests – both what they have worked on previously and how this can be applied within the framework of this postdoctoral position.

About the Employment

The position is temporary for two years according to the central collective agreement. The extent is full-time. Start date is July 1st or by agreement. Place of employment: Uppsala

For inquiries about the position, please contact: Karin Schönning, karin.schonning@physics.uu.se

Welcome with your application by May 2, 2025, UFV-PA 2025/948.

Uppsala University is a broad research university with a strong international position. The ultimate goal is to conduct education and research of the highest quality and relevance to make a difference in society. Our most important asset is all 7,600 employees and 53,000 students who, with curiosity and commitment, make Uppsala University one of the country's most exciting workplaces.

Read more about our benefits and what it is like to work at Uppsala University here (https://uu.se/om-uu/jobba-hos-oss/).

The employment may be subject to security clearance. A prerequisite for employment is that the applicant is approved in the security clearance.

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Applications are received in Uppsala University's recruitment system.