Hey there, welcome to my home page!I'm Darwin, a graduate student in Physics specializing in Hadron Physics.Read all about me and my work here.Feel free to contact me for opportunities and collaborations.Godspeed!

Education

Master of Science in Physics(October 2025 – present)
Graduate School of Science, The University of Osaka
Toyonaka, Osaka, Japan

Bachelor of Science in Applied Physics
Magna Cum LaudeThesis: Distinguishing Triangle Singularity from Pole-based Enhancements
via Deep Learning: A Model Selection Framework(September 2020 – August 2024)
College of Science, University of the Philippines
Diliman, Quezon City, NCR, Philippines

Research Experience

Charm Baryon Spectroscopy Group
Adviser: HIROYUKI NOUMI, Ph.D.(October 2025 – present)
Research Center for Nuclear Physics, The University of Osaka
Suita, Osaka, Japan

Nuclear and Hadron Physics Group
Adviser: DENNY LANE B. SOMBILLO, Ph.D.(July 2022 – May 2025)
National Institute of Physics,
College of Science, University of the Philippines
Diliman, Quezon City, Philippines

Awards & Honors

  • SNP Incentive Prize (2025)
    14th International School for Strangeness Nuclear Physics (SNP2025)
    2025 December 01–05, University of Osaka, Osaka, Japan

  • Hashimoto Prize & ANPhA Gold Prize (2023)
    12th International School for Strangeness Nuclear Physics (SNP2023)
    2023 December 11–15, J-PARC, Ibaraki, Japan

Teaching Experience

  • Chinese Mathematics Part-time Instructor (2020–2021)
    Junior High School, Chiang Kai Shek College
    Tondo, Manila, Philippines

Affiliations

  • Association of Filipino Students in Japan (AFSJ)
    Member (2025 – present)

  • UP Physics Association (UPPA)
    Member (2021 – 2024)

  • UP Chinese Student Association (UPCSA)
    Vice President for Research and Academics (2022 – 2023)
    Member (2023 – 2024, 2021 – 2022)

  • Scientia
    News Editor (2021 – 2022)
    News Writer (2020 – 2021)

Skills

  • Programming: Python, MATLAB, Wolfram Mathematica, LaTeX, Git, C#, C++

  • Modeling: Autodesk Fusion, Tinkercad

  • Languages: English (fluent), Mandarin Chinese (fluent), Filipino (native),
    Hokkien (native), Japanese (beginner)

ORCiD: 0009-0003-8982-8727
InspireHEP: D.A.O.Co.1
arXiV: co_d_2

Journal articles

  1. Deep learning framework for disentangling triangle singularity and pole-based enhancements
    DAO Co, VAA Chavez, and DLB Sombillo (2024)
    Physical Review D 110, 114034

Conference proceedings

  1. Insights on the nature of Pcc̅s(4338) from a model-selection approach
    DAO Co and DLB Sombillo (2025)
    [in press]

  2. Effects of the nature of Pcc̅(4440)+ on the interpretation of Pcc̅(4457)+ via a model-selection approach
    DAO Co and DLB Sombillo (2025)
    Proceedings of the Samahang Pisika ng Pilipinas 43, SPP-2025-2G-06

  3. Analysis of hidden-charm pentaquarks as triangle singularities via deep learning
    DAO Co and DLB Sombillo (2025)
    Proceedings of Science 465, 031

  4. Resonance-like structure of triangle singularity
    DAO Co and DLB Sombillo (2023)
    Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-2C-03

Conference Talks

  1. Optimization of a light concentrator for the J-PARC MARQ spectrometer RICH detector
    14th International School for Strangeness Nuclear Physics (SNP2025)
    2025 December 04, University of Osaka, Osaka, Japan

  2. Effects of the nature of Pcc̅(4440)+ on the interpretation of Pcc̅(4457)+ via a model-selection approach
    43rd Samahang Pisika ng Pilipinas Physics Conference (SPP2025)
    2025 June 26, University of the Philippines, Quezon City, Philippines

  3. Insights on the nature of Pccs(4338) from a model-selection approach
    21st International Conference on Hadron Spectroscopy and Structure (HADRON2025)
    2025 March 31, University of Osaka, Osaka, Japan

  4. Analysis of hidden-charm pentaquarks as triangle singularities via deep learning
    10th International Conference on Quarks and Nuclear Physics (QNP2024)
    2024 July 08, Universitat de Barcelona, Barcelona, Spain

  5. Understanding triangle singularity using deep neural network
    12th International School for Strangeness Nuclear Physics (SNP2023)
    2023 December 12, Remote participation

  6. Resonance-like structure of triangle singularity
    41st Samahang Pisika ng Pilipinas Physics Conference (SPP2023)
    2023 July 20, Siargao Island, Philippines

Schools & Trainings

  • 2023 Hamadohri Environmental Radiation Training (Hamadohri2023)
    2023 September 24–29, Fukushima, Japan

CONTACT ME

Email: [email protected]

Office: Research Center for Nuclear Physics
10-1 Mihogaoka, Ibaraki, Osaka, 567-0047 Japan