TRENDING NOW: NASA's new James Webb Space Telescope photographs UFOs

Three brand-new particles discovered by the Large Hadron Collider

Three never-before-seen particles have been observed by CERN's Large Hadron Collider, including a pentaquark and two tetraquarks.

Published Jul 6, 2022 6:34 AM CDT   |   Updated Thu, Jul 28 2022 7:51 PM CDT

CERN's Large Hadron Collider (LHC) is back up and running after a three year hiatus, operating at its highest power yet.

Three brand-new particles discovered by the Large Hadron Collider 01 |

Now, the LHCb experiment at the LHC has observed three never-before-seen particles: a new type of pentaquark, and two new tetraquarks. Quarks are elementary particles that combine to make hadrons, the most common of which are protons and neutrons, found inside the nucleus of atoms. Six different kinds of quarks exist, the up, down, charm, strange, top, and bottom quarks, and the LHC has been able to observe new combinations of them in four (tetra-) and five (penta-) arrangements.

Protons and neutrons are made from a combination of three up and down quarks, however, exotic hadrons like the newly discovered tetraquarks and pentaquarks contain less common quarks. The new pentaquark contains a charm quark, a charm antiquark (the antimatter equivalent of a charm quark), an up, a down, and a strange quark, making it the first pentaquark observed to be made with a strange quark.

Three brand-new particles discovered by the Large Hadron Collider 02 |

The tetraquarks were observed as a pair, another first-time occurrence. The first tetraquark comprised a charm quark, strange antiquark, up quark, and down antiquark. The tetraquark carried a double electric charge, and the second tetraquark was its electrically neutral counterpart.

"The more analyses we perform, the more kinds of exotic hadrons we find. We're witnessing a period of discovery similar to the 1950s, when a 'particle zoo' of hadrons started being discovered and ultimately led to the quark model of conventional hadrons in the 1960s. We're creating 'particle zoo 2.0,'" said LHCb physics coordinator Niels Tuning.

"Finding new kinds of tetraquarks and pentaquarks and measuring their properties will help theorists develop a unified model of exotic hadrons, the exact nature of which is largely unknown. It will also help to better understand conventional hadrons," said LHCb spokesperson Chris Parkes.

You can read more from CERN's press release here.

Buy at Amazon

Large Hadron Collider Owners' Workshop Manual: 2008 onwards

TodayYesterday7 days ago30 days ago
* Prices last scanned on 8/12/2022 at 7:22 am CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

Newsletter Subscription

Related Tags

Newsletter Subscription
Latest News
View More News
Latest Reviews
View More Reviews
Latest Articles
View More Articles