Scientists hope that this discovery will help them figure out what the most common particle in the universe is made of.

Neutrinos were found for the first time by a group of scientists led by physicists from the University of California, Irvine (UCI). Scientists have known about subatomic particles since 1956. They are a key part of how stars burn, and this discovery should help them learn more about them.

The work could also tell us more about neutrinos from space that travel long distances and hit the Earth, giving us a glimpse into faraway parts of the universe.

It is the most recent outcome of the FASER or Forward Search Experiment. Physicists from all around the globe collaborated to develop and construct the FASER particle detector, which was located at CERN in Geneva, Switzerland. There, FASER searches for the particles produced by the CERN Large Hadron Collider.

The Forward Search Experiment, or FASER, is a particle detector created and constructed by a global team of physicists and located at CERN, the European Council for Nuclear Research, in Geneva, Switzerland. This is the most recent finding from FASER. There, the Large Hadron Collider at CERN's facility FASER finds particles.

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Jonathan Feng, a particle physicist from UC Irvine and a co-spokesman for the FASER Collaboration, initiated the initiative, which now encompasses over 80 researchers from UCI and 21 partner universities. 

At particle colliders, where two streams of particles clash at extraordinarily high energies, neutrinos have been found for the first time, according to him.

The findings were presented on behalf of FASER on Sunday at the 57th Rencontres de Moriond Electroweak Interactions and Unified Theories conference in Italy by CERN particle researcher Brian Petersen.

Neutrinos, the most prevalent particle in the universe and co-discovered by the late UCI scientist and Nobel laureate Frederick Reines, "were tremendously crucial for developing the standard model of particle physics," said Jamie Boyd, a particle physicist at CERN and a FASER Co-Spokesman. Yet one experiment had never discovered a neutrino created at a collider.

The bulk of neutrinos investigated by physicists have been low-energy neutrinos since the landmark work of Reines and others, including Hank Sobel, a professor of physics and astronomy at the University of California, Irvine. 

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The neutrinos discovered by FASER, however, are the most energetic neutrinos ever created in a laboratory and are comparable to the neutrinos discovered when deep-space particles cause spectacular particle showers in our atmosphere.

Boyd remarked, "They can teach us things about deep space that we couldn't learn any other way. "These really high-energy neutrinos at the LHC are crucial for explaining truly fascinating particle astrophysical findings,"

FASER is a brand-new and distinctive experiment for finding particles. FASER weighs only one tonne and fits neatly within a little side tunnel at CERN, in contrast to larger detectors there like ATLAS, which is several floors tall and weighs thousands of tonnes. 

Its design and construction, which used leftover parts from prior projects, only took a few years.

According to UCI experimental physicist Dave Casper, "neutrinos are the only known particles that the far bigger experiments at the Large Hadron Collider are unable to directly detect," therefore FASER's successful detection indicates the collider's full physics potential is now being utilised.

Alongside neutrinos, one of FASER's main goals is to aid in the identification of the particles that make up dark matter, which scientists believe makes up the majority of the universe's stuff but which they have never directly detected.

FASER hasn't discovered any indications of dark matter, but with a fresh wave of particle collisions at the LHC beginning in a few months, the detector is prepared to capture any that do.

Boyd stated, "We're hoping to find some interesting signs.