Date/Time: Fri Nov 08 2024 at 10:00<br/><br/>Location: Remote<br/><br/>Speaker: Wolfgang Schreyer (Oak Ridge NL)<br/><br/>Title: Teasing the science out of neutron decay<br/><br/>Abstract: Studying the beta decay of free neutrons can give insights into the underlying weak interaction. For example, by measuring the correlations between decay products and by precisely determining the neutron lifetime, the Vud coefficient of the CKM matrix can be calculated with a precision potentially surpassing that of the current best methods from high-energy physics and provide a new test of CKM-matrix unitarity. Additionally, emerging discrepancies between recent measurements have given rise to several beyond-the-Standard Model theories that can be explored.
Using the Nab spectrometer at the Spallation Neutron Source and the PENeLOPE experiment---which recently moved to TRIUMF---as examples, I will introduce the measurement principles used to study free neutron decay and highlight how simulation, optimization, and automation can be used to maximize the scientific impact of such precision experiments.
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Remote Connection:
https://ubc.zoom.us/j/67404904876?pwd=ZEtWXXFTCv8teNryvbkQUtb3cdRuhr.1
Meeting ID: 674 0490 4876
Passcode: 866296<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>Date/Time: Tue Nov 05 2024 at 14:00<br/><br/>Location: Remote<br/><br/>Speaker: Marie Blatnik (Los Alamos)<br/><br/>Title: The Cryogenic Effort to Measure the Neutron?s Electric Dipole Moment, and More Attainable Goals<br/><br/>Abstract: The search for the neutron electric dipole moment (nEDM) represents one of the most sensitive probes into new physics beyond the Standard Model, with implications for understanding the universe's matter-antimatter asymmetry. Using ultracold neutrons, limits on the nEDM have been set to the precision of 10^-26 e cm. This talk will initially explore a now-defunded cryogenic nEDM experiment, focusing on the high voltage challenges critical to reaching an nEDM limit on the order of 10^-28 e cm. The TRIUMF Advanced Ultracold Neutron source will support a room-temperature nEDM experiment that can gain one extra order of magnitude without the cryogenic experiment?s challenges. Finally, this talk will comment on the utility of ultracold neutrons, leveraging them for fundamental science and applied uses.
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Remote Connection:
https://ubc.zoom.us/j/62682562516?pwd=4fheANPi4FIFR4qEszjwbtkyLmlYoc.1
Meeting ID: 626 8256 2516
Passcode: 300414<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>Date/Time: Mon Nov 04 2024 at 10:00<br/><br/>Location: Remote<br/><br/>Speaker: Efrain Segarra (PSI Villigen)<br/><br/>Title: Asking the neutron electric dipole moment: where did all the anti-matter go?<br/><br/>Abstract: Around the world, many collaborations are aiming to probe the neutron electric dipole moment (EDM) by an order of magnitude better sensitivity as compared to current limits. This increased sensitivity on the neutron EDM, down to 1E-27 e.cm., will provide stringent constraints on time-reversal violating processes and deeply probe physics beyond the Standard Model (BSM), furthering our understanding on the origins of the baryon asymmetry of the universe. In other words, asking: where did all the anti-matter go?
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Remote Connection:
https://ubc.zoom.us/j/63913454554?pwd=oezVWL5b4Mi7cCq45AWCWuqJLYATIf.1
Meeting ID: 639 1345 4554
Passcode: 899225<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>Date/Time: Thu Nov 07 2024 at 13:00<br/><br/>Location: Remote<br/><br/>Speaker: Skyler Degenkolb (U Heidelberg)<br/><br/>Title: Ultra Cold Neutrons and Fundamental Physics<br/><br/>Abstract: TBA
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Remote Connection:
https://ubc.zoom.us/j/64408605890?pwd=ryAUazNRJajtupY4MUdGTwXzx8Z4Qx.1
Meeting ID: 644 0860 5890
Passcode: 676565<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>Date/Time: Wed Nov 06 2024 at 13:00<br/><br/>Location: Theory Room/Remote<br/><br/>Speaker: Seth Koren (Notre Dame U)<br/><br/>Title: Generalized Global Symmetries and Nonperturbative Quantum Flavodynamics<br/><br/>Abstract: Generalized global symmetries are present in theories of particle physics, and understanding their structure can give insight into these theories and UV completions thereof. We will identify noninvertible chiral symmetries in certain flavorful Z' extensions of the Standard Model, and our understanding of generalized symmetry breaking will lead us to short-distance theories of gauged non-Abelian flavor where nonperturbative effects can resolve important naturalness questions. For the leptons we will find naturally exponentially small Dirac neutrino masses, and in the quark sector we will construct a massless down-type quarks solution to strong CP in color-flavor unification. Intriguingly, the fact that we have three generations of fermions plays a crucial role in the existence of these noninvertible symmetries.
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Remote Connection:
https://ubc.zoom.us/j/62535266430?pwd=THVrUzhMdjAyVkNnM05OUWRZYUppZz09
Meeting ID: 625 3526 6430
Passcode: 307647<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>