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Luciano Maiani

Luciano Maiani 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 Luciano Maiani rather than just read about it. In short: Luciano Maiani (born 16 July 1941) is a Sammarinese physicist. He is best known for his prediction of the charm quark with Sheldon Glashow and John Iliopoulos (the "GIM mechanism").

Luciano Maiani — main illustration
Luciano Maiani — illustration

Key takeaways

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

Reference excerpt

Luciano Maiani (born 16 July 1941) is a Sammarinese physicist. He is best known for his prediction of the charm quark with Sheldon Glashow and John Iliopoulos (the "GIM mechanism").

Academic history In 1964 Luciano Maiani received his degree in physics and he became a research associate at the Istituto Superiore di Sanità in Italy. During that same year he collaborated with Raoul Gatto's theoretical physics group at the University of Florence. He crossed the Atlantic in 1969 to do a post-doctoral fellowship at Harvard University's Lyman Laboratory of Physics. In 1976 Maiani became a professor of theoretical physics at the University of Rome, however he traveled widely during this period, holding visiting professorships at the École normale supérieure of Paris (1977) and CERN (1979–1980 and 1985–1986). Maiani also took an interest in the direction of particle physics research start on CERN's Scientific Policy Committee from 1984 to 1991. Then, in 1993, until 1998, he became president of Italy's Istituto Nazionale di Fisica Nucleare (INFN). From 1993 to 1996 Maiani served as a scientific delegate in CERN council and then as that council's president in 1997. Thereafter he became director general of CERN, serving from 1 January 1999 through the end of 2003. From 1995 to 1997 Maiani chaired the Italian Comitato Tecnico Scientifico, Fondo Ricerca Applicata. At the end of 2007 he was proposed as president of Consiglio Nazionale delle Ricerche, but his nomination was suspended temporally after he signed a letter criticizing the rector of 'La Sapienza' University in Rome, who invited Pope Benedict XVI to give a lectio magistralis in 2008. However he became the President of CNR since 2008. As of September 2020, he is a member of the Italian Aspen Institute.

Research Luciano Maiani has authored over 100 scientific publications on the theory of elementary particles often with several co-authors. In 1970 he predicted the charm quark in a paper with Glashow and Iliopoulos which was later discovered at SLAC and Brookhaven in 1974 and led to a Nobel Prize in Physics for the discoverers. Working with Guido Altarelli in 1974 they explained that the observed octet enhancement in weak non-leptonic decays was due to a leading gluon exchange effect in quantum chromodynamics. They later extended this effect to describe the weak non-leptonic decays of charm and bottom quarks as well and also produced a parton model description of heavy flavor weak decays. In 1976 Maiani analyzed the CP violation in the six-quark theory and predicted the very small electric dipole moment of the neutron. In the 1980s he started using the numerical simulation of lattice QCD and this led to the first prediction of the decay constant of pseudoscalar charmed mesons and of B mesons. A proponent of supersymmetry, Maiani once said that the search for it was "primary goal of modern particle physics". He has not confined his interest to the theoretical side of physics either, with involvement in ALPI, EUROBALL, DAFNE, VIRGO and the LHC.

Honors and awards 1979 Matteucci Medal, Accademia Nazionale dei XL 1987 Sakurai Prize of the American Physical Society 1996 Doctor honoris causa, Université de la Méditerranée, Aix-Marseille 2007 Dirac Medal, Abdus Salam International Centre for Theoretical Physics, Trieste, Italy 2010 Doctor honoris causa, Benemérita Universidad Autónoma de Puebla, Puebla, México 2011 High Energy Particle Physics Prize by the European Physical Society. 2013 Bruno Pontecorvo Prize by the Joint Institute for Nuclear Research, Dubna, Russia

See also GIM mechanism

References

External links

Luciano Maiani on INSPIRE-HEP

Illustrations

Luciano Maiani illustration

Worked examples

Example 1 — a first encounter with Luciano Maiani

Start with the simplest possible case. Write down what Luciano Maiani 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 Luciano Maiani 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 Luciano Maiani 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 Luciano Maiani

In research
Luciano Maiani 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 Luciano Maiani 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
Luciano Maiani is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1941 births, Academic staff of the Sapienza University of Rome, Experimental particle physics, so understanding it makes those chapters shorter.
In everyday life
Look for Luciano Maiani 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 Luciano Maiani in 20 minutes

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

Frequently asked questions

What is Luciano Maiani in simple terms?

Luciano Maiani (born 16 July 1941) is a Sammarinese physicist. He is best known for his prediction of the charm quark with Sheldon Glashow and John Iliopoulos (the "GIM mechanism").

Why does Luciano Maiani 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 Luciano Maiani?

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 Luciano Maiani.

Tags

  • 1941 births
  • Academic staff of the Sapienza University of Rome
  • Experimental particle physics
  • Experimental physicists
  • Fellows of the American Physical Society
  • Foreign fellows of Pakistan Academy of Sciences
  • Foreign members of the Russian Academy of Sciences
  • J. J. Sakurai Prize for Theoretical Particle Physics recipients
  • Living people
  • Members of the European Academy of Sciences and Arts
  • National Research Council (Italy) people
  • Particle physicists

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