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SUMMARY:Navigating the nucleus: The path to precision measurements of neut
 rino oscillations
DTSTART:20240412T100000Z
DTEND:20240412T113000Z
DTSTAMP:20260607T114700Z
UID:indico-event-1885@indico.ifae.es
DESCRIPTION:Speakers: Laura Munteanu  (CERN)\n\nThe discovery of neutrino 
 oscillations has opened a new chapter in particle physics. The observation
  of this phenomenon implies that neutrinos have non-zero masses\, a proper
 ty not accounted for in the Standard Model. The mechanism most widely-use
 d to model neutrino oscillations uses a mixing matrix formalism\, similar 
 to the one in the quark sector. The probability of neutrino flavor oscilla
 tions depends on the size of the elements of this matrix\, as well as the
  difference between the neutrino mass states. By measuring neutrinos from 
 both natural and artificial sources\, experiments over the past two decade
 s have been able to measure the parameters describing neutrino oscillatio
 ns with varying degrees of precision. The least well known oscillation par
 ameters which remain to be probed are most accessible by using well under
 stood and controlled neutrino beams from accelerators. Experiments which u
 se this technique are sensitive\, in particular\, to the neutrino mass ord
 ering and the complex CP-violating phase\, dCP. The latter\, in particula
 r\, determines whether CP symmetry is violated in the lepton sector\, whil
 e the former will shed light on the neutrino mass ordering problem. The sa
 me experiments which tackle these challenges are well equipped to search 
 for physics beyond the mixing matrix formalism.\nCurrent long-baseline neu
 trino oscillation experiments (T2K and NOvA) measure oscillation parameter
 s by comparing the evolution of the flavor composition in a pure (anti-)ne
 utrino beam. The oscillation probability evolves as a function of neutrin
 o energy. However\, the neutrino energy spectrum measured in these experim
 ents is also determined by the neutrino flux\, detector efficiency effects
 \, and the cross-section of neutrino interactions with the target nuclei. 
 The latter introduce sources of systematic uncertainty\, whose mis-modelli
 ng can severely bias neutrino oscillation parameter measurements. Of the t
 hree\, the physics of neutrino interactions with matter represents the do
 minant source of systematic uncertainty.\nThis seminar will illustrate the
  mechanisms through which neutrino-nucleus interactions affect neutrino os
 cillation measurements in current and future long-baseline experiments. Ne
 xt-generation experiments\, such as DUNE and Hyper-Kamiokande\, are being
  developed with extremely ambitious precision physics goals. If kept at cu
 rrent levels\, neutrino-nucleus interaction systematic uncertainties will 
 quickly become the limiting factor to their physics programs. This talk w
 ill present an overview of experimental and theoretical programs aimed at 
 mitigating these uncertainties as neutrino physics enters the precision m
 easurement era.\n\nhttps://indico.ifae.es/event/1885/
LOCATION:IFAE Seminar Room + Zoom  (Hybrid Seminar)
URL:https://indico.ifae.es/event/1885/
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