### High Energy Physics Seminar: Dr. Deog-Ki Hong, Pusan National University, South Korea

• Date(s): Friday, 10/23 12:00 PM to Friday, 10/23 1:00 PM
• Speaker: Dr. Deog-Ki Hong
• Host: Ho-Ung Yee
• Campus Address: 2214 SES (Science and Engineering South)

Title: Holographic Estimate of Isospin Splitting in hadron mass

Abstract: Using the gauge/gravity duality, we calculate the electromagnetic contributions to hadron masses, where mass generates dynamically by strong QCD interactions. Based on the Sakai-Sugimoto model of holographic QCD, we find that the electromagnetic mass of proton is 0.48 MeV larger than that of neutron, which is in agreement with recent lattice results. Similarly for pions we obtain $m_{\pi_+}&#8722;m_{\pi_-}$=1.8 MeV.

HEP Oct23 flyer