BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Building particle physics from the bottom up DTSTART:20241219T140000Z DTEND:20241219T160000Z DTSTAMP:20260630T180115Z UID:54de2b83-4320-4fa0-9173-e71223f54072 SEQUENCE:2 CREATED:20241206T092135Z DESCRIPTION:If you are a physics student\, you have probably felt that und erstanding physical phenomenainvolves finding the correct set of equations to describe them\, and very carefully solving these equations without mak ing any mistakes. But\, surprisingly\, it turns out that physical phenomen a are often incredibly constrained by asking for consistency with basic ph ysical principles\, and one can more quickly and reliably "\;just writ e down the correct final answer"\; by making sure these are satisfied. In this talk\, I will put this philosophy into practice\, and show how do ing physics in this way is much more forgiving of little mistakes\, as we let the consistency conditions guide both our thinking and our computation s. I will start with some simple examples of everyday physics and build up to understanding how relativity and quantum mechanics strongly constrain and dictate the allowed interactions of elementary particles. I will end b y explaining how this way of approaching physical problems is even more po werful in the context of the most fundamental observables in particle phys ics -- scattering amplitudes. LAST-MODIFIED:20241206T092225Z LOCATION:Anf. Abreu Faro (Complexo Interdisciplinar) URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/building-particle-physics- from-the-bottom-up/ X-ALT-DESC;FMTTYPE=text/html:

If you are a physic s student\, you have probably felt that understanding physical phenomena

involves finding the correct set of equations to describe them\, and very carefully solving these equations without maki ng any mistakes.

But\, surprisingly\, it turns out that physical phenomena are often incredibly constrained by asking for consistency with basic physical principles\, and one can more quickly and reliably "\; just write down the correct final answer"\; by making sure these are s atisfied. In this talk\, I will put this philosophy into practice\, and sh ow how doing physics in this way is much more forgiving of little mistakes \, as we let the consistency conditions guide both our thinking and our co mputations.

I will start with some simple examples of everyday p hysics and build up to understanding how relativity and quantum mechanics strongly constrain and dictate the allowed interactions of elementary part icles. I will end by explaining how this way of approaching physical probl ems is even more powerful in the context of the most fundamental observabl es in particle physics -- scattering amplitudes.

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