Opening: A particle lives for less than one millionth of one millionth of a second — but enough to rewrite textbooks
On March 17, 2026, scientists at CERN — the world's largest particle physics laboratory, buried deep underground near Geneva, Switzerland — announced the discovery of a heavier version of the proton, the subatomic particle at the center of every known atom in the universe. The new particle, technically named Xi-cc-plus (Ξcc⁺), weighs four times as much as an ordinary proton and exists for less than one millionth of one millionth of a second before decaying.
For the general reader, that number sounds like a trivial detail. But for the international particle physics community, this is a landmark discovery — not just because of the particle itself, but because of what it allows us to understand about the strong nuclear force, one of four fundamental forces governing all matter in the universe. And lurking behind this scientific celebration is a budget crisis threatening the future of the very machine that produced this discovery.
What is a heavy proton, and why does it matter?
To understand this discovery, we need to go back to the basic structure of matter. Every atom has a nucleus containing protons and neutrons (except hydrogen, which has just one proton). The proton itself is not an elementary particle — it is made up of three smaller particles called quarks: two up quarks (up) and one down quark (down). These quarks are "glued" together by the strong nuclear force, transmitted through intermediate particles called gluons.
The strange thing about the strong nuclear force is that it works opposite to intuition: the farther apart two quarks are pulled, the stronger the force between them — like a rubber band. This is why no one can isolate a single quark in nature.
In the newly discovered Xi-cc-plus particle, the two up quarks in an ordinary proton are replaced by two charm quarks — a heavier and less stable version of the up quark. The result is a "heavy proton" four times heavier, appearing in a flash during proton-proton collisions at the Large Hadron Collider (LHC) before decaying into other particles.
Professor Chris Parkes from the University of Manchester explains the significance: "The more we learn about these particles, the more we understand the strong force — and that is also the force that holds protons and neutrons together in every atom." In other words, understanding the heavy proton means understanding the fundamental structure of all the matter around us more deeply.
Technological leap: Upgraded detector changes the game
Equally noteworthy as the discovery itself is the story of how it was found. The Xi-cc-plus particle was not new from a theoretical perspective — physicists had predicted its existence long ago. But throughout more than a decade of data collection with the original LHCb detector, no one had found it.
After the detector underwent comprehensive upgrade, just one year of new data was sufficient.
Professor Tim Gershon from the University of Warwick, who will take on the international leadership role of the LHCb experiment starting July 2026, emphasizes: "The improved detection capability allowed us to find the particle after just one year, whereas we could not see it in a decade of data collection with the original LHCb.
This is strong evidence for a key principle in basic research: investment in scientific infrastructure pays off, sometimes delivering results faster than anyone predicted. Upgrading the LHCb detector was not simply "buying new equipment" — it was the integration of hundreds of advanced technologies in sensors, signal processing, and data analysis software, many of which will eventually find their way into civilian applications, from medicine to semiconductor technology.
The budget crisis: When cutting-edge science faces cuts
But right in the middle of this moment of glory, a large shadow is falling over the future of LHCb. UK Research and Innovation (UKRI) — Britain's main science funding agency — is facing fierce criticism over plans to withdraw 50 million pounds (approximately 63 million USD) allocated for the final upgrade of LHCb in the 2030s.
This upgrade is no minor project. It is designed to synchronize with the High-Luminosity LHC (HL-LHC) — the largest overhaul of the Large Hadron Collider, expected to increase the number of proton collisions by 5-7 times compared to the present. If LHCb is not upgraded accordingly, the detector will not be able to capitalize on the potential of HL-LHC — like having gigabit internet but using a computer from the 2000s.
The reason for the cuts is cost overruns at Britain's major science facilities, leading to reduced research grants for scientists in particle physics, astronomy, and nuclear physics. Beyond LHCb, another project affected is the Electron-Ion Collider (EIC) — an electron-ion collider being developed with researchers in the United States at Brookhaven National Laboratory in New York.
Last week, Chi Onwurah, Chair of the House of Commons Science Committee, sent a sharp letter to UKRI's Chief Executive and the Science Secretary, calling the budget cuts "completely unacceptable" and "a failure" of Britain's science management system.
The bigger question: Who will lead fundamental science in the next decade?
The budget crisis at UKRI is not an isolated event. It reflects a worrying global trend: declining public investment in fundamental research — the kind of research that does not generate immediate profit but lays the foundation for every technological breakthrough in the future.
In the United States, the situation is not much brighter. The budget for the Department of Energy (DOE) — the main funding agency for nuclear physics in the US — has faced proposed cuts for several consecutive years. The Electron-Ion Collider project at Brookhaven, with an estimated cost of 1.7-2.8 billion USD, continuously faces questions about financial feasibility. As the federal government focuses resources on AI (Artificial Intelligence), defense, and other short-term priorities, fundamental physics increasingly gets sidelined.
Meanwhile, China is pushing forward ambitious plans to build the Circular Electron-Positron Collider (CEPC) — a particle collider with a circumference of 100 kilometers, larger than the LHC itself. If CEPC becomes reality in the 2030s-2040s, it will mark a shift in the center of gravity of particle physics from Europe and America to East Asia — a historically significant geopolitical shift in science.
A perspective from the Vietnamese-American community: Fundamental science and the next generation
The story of the heavy proton and the science budget crisis may seem distant from the Vietnamese-American community — but in reality, it touches many more sensitive points than one might think.
First, regarding human resources. The Vietnamese-American community has made significant contributions to STEM (Science, Technology, Engineering, and Mathematics) fields in the United States. From national laboratories to leading research universities, Vietnamese-American scientists are present in many fields, including nuclear physics. Research grant cuts — whether in Britain or the United States — directly affect career opportunities and postdoc positions for the generation of young Vietnamese-American scientists, many of whom are currently pursuing PhD programs in physics at universities like MIT, Caltech, Stanford, and the University of Michigan.
Second, regarding the flow of knowledge. In Vietnam, the field of particle physics and high-energy physics remains in its early stages, although the country has research groups participating in international collaborations, including with CERN through training programs. The decline in investment in fundamental science in the West may narrow the doors of international collaboration for young researchers from Vietnam who want to go to the United States or Europe to pursue cutting-edge research — and at the same time narrow opportunities for exchange programs that the diaspora has been helping to build.
Third, regarding the lesson of long-term investment. The Vietnamese-American community — especially in centers like Little Saigon in Orange County, San Jose, and Houston — has long placed education and research at the very top of its priorities. The story of UKRI cutting science funding is a reminder that commitment to fundamental research requires patience and vision that extends beyond short-term budget cycles — a lesson that communities supporting STEM education within the Vietnamese-American community should keep in mind when advocating for policy at the federal and state levels.
Why fundamental research still deserves investment
There will always be those who ask: "What use is a particle that exists for less than one millionth of one millionth of a second in everyday life?
This is a reasonable question, and it deserves a straightforward answer.
The World Wide Web (WWW) — the foundation of the entire modern internet — was invented at CERN in 1989 by Tim Berners-Lee, initially just as a tool for sharing data among particle physicists. PET scan technology in cancer diagnosis originated from particle physics research. Particle accelerator technology is now being used in proton therapy to treat cancer with greater precision than conventional radiotherapy. Data processing algorithms developed for the LHC are now being applied to AI (Artificial Intelligence), financial analysis, and weather forecasting.
No one in 1989 predicted that an internal tool at a particle physics laboratory would create an internet economy worth thousands of billions of dollars. Fundamental research does not generate profit on a quarterly financial schedule — but it creates the foundation for all future innovation.
CERN's entire annual operating budget is only about 1.2 billion EUR — roughly one-third of the cost of a Gerald R. Ford-class aircraft carrier. The 50 million pounds that UKRI is planning to cut — money threatening the future of LHCb — is equivalent to the cost of building approximately 2 kilometers of motorway in Britain.
Looking ahead: What scenario for particle physics in the 2030s?
The discovery of Xi-cc-plus is good news for fundamental physics, but the bigger picture remains full of uncertainty.
- ✅ Optimistic scenario: Political pressure from the House of Commons Science Committee and the international scientific community forces UKRI to reverse its decision. LHCb's final upgrade is carried out on schedule, synchronized with HL-LHC. Physicists have the tools to explore previously undiscovered particles, expanding our understanding of the strong nuclear force and possibly finding clues about new physics beyond the Standard Model.
- ❌ Pessimistic scenario: Budget cuts become official. Britain — which contributes about 17% of LHCb's workforce — withdraws from its leading role. British scientists move to other fields or emigrate to the US, Germany, Japan. LHCb loses its competitive capability right when HL-LHC begins operation. A decade of potential discovery is wasted.
⚠️ Middle scenario (perhaps most realistic): Part of the budget is recovered through political negotiations, but the upgrade is delayed 2-3 years. The US and other partners have to shoulder additional costs. The Electron-Ion Collider at Brookhaven is also affected by the loss of British contributions, creating pressure on an already strained DOE budget.
Conclusion: A tiny particle, a big question
Xi-cc-plus exists for less than one millionth of one millionth of a second. But the questions it raises — about the nature of the strong nuclear force, about the deepest structure of matter — will exist far longer than any budget cycle.
The discovery at LHCb is powerful proof that investment in scientific infrastructure pays off. It is also a warning that those gains can be threatened by short-term thinking in public financial management.
For the Vietnamese-American community — people who know all too well the value of long-term investment in education and knowledge — this story is a reminder: science is not just a matter of laboratories in Geneva or Brookhaven. It is a matter of the future we are building for the next generation, and that future needs to be protected through policy, budgets, and political will.
As Professor Gershon says: "No other experiment currently operating or planned can do this physics." If we lose the tool, we also lose the opportunity to know. And in science, missed opportunities sometimes never come back.