physics

Ursula Bassler

Ursula Bassler is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ursula Bassler rather than just read about it. In short: Ursula Rita Bassler (born 1965) is a French-German particle physicist. Bassler was the President of the CERN Council from 2019 to 2021, and deputy director of National Institute of Nuclear and Particle Physics (IN2P3), CNRS, from 2014 to 2015.

Key takeaways

Ursula Bassler belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ursula Bassler to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ursula Bassler from memory before moving on to harder problems.

Reference excerpt

Ursula Rita Bassler (born 1965) is a French-German particle physicist. Bassler was the President of the CERN Council from 2019 to 2021, and deputy director of National Institute of Nuclear and Particle Physics (IN2P3), CNRS, from 2014 to 2015. From 2026 on, she serves as CERN's Director for Stakeholder Relations.

Early life and education Bassler was born in Germany in 1965. She moved to France as an au-pair. She completed her PhD in particle physics at the Pierre and Marie Curie University in 1993.

Research and career She joined the Nuclear and High Energy Laboratory (LPNHE), a joint research unit between the Centre national de la recherche scientifique (CNRS) and Pierre and Marie Curie University, where she worked on collider-based particle physics. Bassler used data from the HERA particle accelerator, where she worked on the structure of the proton as a member of the H1 experiment at DESY in Germany. In 1998 Bassler joined the DØ experiment at Fermilab, where her responsibility was to run the online calorimeter calibration. She was part of a working group on structure function providing input to the Deep Inelastic Scattering Workshop in 1999. During the World Year of Physics in 2005, Bassler kept a blog at Quantum Diaries. In 2006, she created the project Collisions, a multi-media project with Anaïs Prosaïc as director, which featured the physicists and engineers who work for the Large Hadron Collider. Bassler and Prosaïc made the documentary Collisions in 2008. In 2007 she was made Head of the Particle Physics division at the Institute of Research of the Fundamental Laws of the Universe at the French Alternative Energies and Atomic Energy Commission (CEA). She was scientific deputy director in particle physics and computing at IN2P3 (2014-2015), before becoming its deputy director (2016-2018). At IN2P3, Bassler prepared the approval of the upgrades for the high-luminosity LHC (HL-LHC) detectors and the French participation in the European Open Science Cloud. She has been member of the DESY scientific council. In September 2018 Bassler was made the 23rd President of CERN Council. Her candidacy was proposed by France and Germany. As of August 2024, Bassler is affiliated with Laboratoire Leprince-Ringuet at École Polytechnique as CNRS researcher. In June 2025, the CERN Council elected her as Director of Stakeholder Relations, following the nomination by then-Director-General Designate, Mark Thomson. Bassler has published more than 500 peer reviewed papers and she is editor of the popular science book Étonnants infinis.

References

Illustrations

Worked examples

Example 1 — a first encounter with Ursula Bassler

Start with the simplest possible case. Write down what Ursula Bassler claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ursula Bassler before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ursula Bassler ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ursula Bassler

In research: Ursula Bassler appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ursula Bassler in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ursula Bassler is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1965 births, 21st-century French women physicists, 21st-century German physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Ursula Bassler outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Ursula Bassler in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ursula Bassler means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ursula Bassler out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ursula Bassler in simple terms?

Why does Ursula Bassler matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ursula Bassler?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ursula Bassler.