NYCU HEP Seminar - May 12
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Wayne Morris
May 8, 2026, 11:01:37 AMMay 8
to 蔡明娟, shuw...@gapp.nthu.edu.tw, Semeon Valgushev, 周家瑞, q396...@gmail.com, lysle...@gmail.com, tacp...@gmail.com, 韓沂展, Wayne Morris, S.-P. Alex Chang, benn...@gmail.com, PhysicsIsLife, stanle...@gapp.nthu.edu.tw, kkako...@gmail.com, Valentin Moos, C. -J. David Lin, ShuWei Yeh, Andy C, To Uyen, Lam Thi, touye...@nycu.edu.tw, 陳正敏, jacky12...@gmail.com, TYing Pun, chin...@mail.nctu.edu.tw, yuehch...@gmail.com, Anthony Francis, 陳昱璋, BoJyun Zhang, ACye, 徐識閎, 林哲丞, 吳宜軒, Mugdha Sarkar, Yao Ting Su, 譚雪瑩, 林雨萱, Jin-Hung Yang, 姓廖的, 黃稔淇, joeliang...@nycu.edu.tw, 施乃澤, 許楦敏 Kate, 林貴林, thucuy...@nycu.edu.tw, Yi Yang NYCU, 文氏妙賢, 黃河源, 文氏妙賢, tw-hepnet, jy08...@gmail.com, Chia-Jui Chou, voquan...@gmail.com, jcc...@nycu.edu.tw
Dear all,
Our next seminar will be Tuesday, May 12th, in Science Building III, Room SC427, from 14:20 to 15:20.
Speaker:
Title: Circumstellar Medium of Supernovae as New Probes for Feebly-interacting Particles
Abstract:
Abstract:
We
propose a novel strategy to probe feebly-interacting particles (FIPs)
by exploiting the dense, confined circumstellar medium (CSM) surrounding
core-collapse supernovae (CCSNe). FIPs produced in the proto-neutron
star can deposit substantial visible energy into the CSM via decay prior
to the shock breakout from the progenitor star. This energy injection
heats and ionizes the CSM, establishing a FIP-induced photosphere that
generates distinctive precursor blackbody emission. Using early-time
observations of SN 2023ixf, we translate the non-detection of excessive
precursor luminosity into stringent new constraints on MeV-scale dark
photons as an exemplary model. Our results significantly extend existing
CCSN bounds and exclude previously unexplored regions of parameter
space. We further demonstrate that the FIP-induced dust sublimation
offers robust diagnostics for future Galactic SNe, opening a new avenue
to explore the dark sector.
See you all there.
Best,
Wayne
Wayne Morris
May 8, 2026, 11:17:03 AMMay 8
to 蔡明娟, shuw...@gapp.nthu.edu.tw, Semeon Valgushev, 周家瑞, q396...@gmail.com, lysle...@gmail.com, tacp...@gmail.com, 韓沂展, Wayne Morris, S.-P. Alex Chang, benn...@gmail.com, PhysicsIsLife, stanle...@gapp.nthu.edu.tw, kkako...@gmail.com, Valentin Moos, C. -J. David Lin, ShuWei Yeh, Andy C, To Uyen, Lam Thi, touye...@nycu.edu.tw, 陳正敏, jacky12...@gmail.com, TYing Pun, chin...@mail.nctu.edu.tw, yuehch...@gmail.com, Anthony Francis, 陳昱璋, BoJyun Zhang, ACye, 徐識閎, 林哲丞, 吳宜軒, Mugdha Sarkar, Yao Ting Su, 譚雪瑩, 林雨萱, Jin-Hung Yang, 姓廖的, 黃稔淇, joeliang...@nycu.edu.tw, 施乃澤, 許楦敏 Kate, 林貴林, thucuy...@nycu.edu.tw, Yi Yang NYCU, 文氏妙賢, 黃河源, 文氏妙賢, tw-hepnet, jy08...@gmail.com, Chia-Jui Chou, voquan...@gmail.com, jcc...@nycu.edu.tw
Hi again,
I am very sorry. I did not add the speaker's name to the announcement.
The speaker is: 林彥勳 (Yen-Hsun Lin)
Best,
Wayne
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