讲座预告｜Neutrino Tomography of the Earth

Topic：Neutrino Tomography of the Earth

Speaker：Prof. S.T. PETCOV, NFN/SISSA, Trieste, Italy

Time：10:00am, July26, 2023

时间：2023年7月26日上午10点

Location: Meeting Room C604, No.3, Hanlin Building, Zhuhai Campus, SYSU

地点：中山大学珠海校区瀚林3号C604

Online Meeting Room:

https://cern.zoom.us/j/62149539233?pwd=WXNMQTVSSSs0SHFINXV5Vkx5enlHQT09

线上会议链接：https://cern.zoom.us/j/62149539233?pwd=WXNMQTVSSSs0SHFINXV5Vkx5enlHQT09

Meeting ID: 621 4953 9233

会议号：621 4953 9233

Passcode: 171550

会议密码：171550

Organizer: Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University

Language: English

Abstract:

Aspects of the theory of neutrino oscillation tomography of the Earth will be considered. We will discuss the sensitivity of the method to deviations of the Earth i)

outer core (OC) density, ii) inner core (IC) density, iii) total core density, and iv) mantle density, from their respective PREM densities using the specific case of

the ORCA detector in the Mideterranean Sea. We will make also general comments on methods, problems and goals of Neutrino Oscillation Tomography of the Earth.

About the speaker:

Prof. Petcov completed his PhD at Laboratory of Theoretical

Physics, Joint Institute of Nuclear Research, Dubna, USSR,

in 1977 and became a Professor at SISSA, Trieste, Italy, in 1994.

Prof. Petcov has made notable contributions in the fields of neutrino,elementary particle and astrophysicle physics, such as proposing(with D.R.T. Jones) in 1979 the Vector Boson Fusion (VBF) mechanism of Higgs boson production . He also discovered (with S.M. Bilenky and J. Hosek) in 1980 a new source of CP violation (CPV) in particle physics –the Majorana phases of the lepton mixing matrix.

In 2001 he proposed (with his student M. Piai) a novel method of neutrino mass ordering (spectrum) determination using reactor neutrinos, which led to the construction of JUNO experiment in China which is based on this method.

He discovered in 1998 a new mechanism of resonance-like (maximal) enhancement (at small mixing angles) of the transitions between electron and muon (tauon) neutrinos crossing the Earth core (neutrino oscillation length resonance (NOLR)

or Earth mantle-core  enhancement), which can be used  in the future high statistics experiments studying atmospheric neutrino oscillations (IceCube-PINGU, KM3NET-ORCA, DUNE, HK, JUNO) to get information about the Earth density structure and the properties (density, composition) of the Earth core (via neutrino oscillation tomography of the Earth).

Prof. Petcov has won the Pontecorvo Prize for the year 2010 for“Fundamental contribution to the investigation of neutrino propagation in matter, , processes and Majorana properties of neutrinos” (that is awarded annually since 1995 by the Joint Institute for Nuclear Research (JINR) in Dubna, Moscow, Russia).