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#CERN

2 posts2 participants0 posts today
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#CERN gears up to ship #antimatter across #Europe
The antimatter containment device has to be maintained as an extreme vacuum and needs superconducting materials to produce the electromagnetic fields that keep the antimatter from bumping into the walls of the container. All of that means a significant power supply, along with a cache of liquid helium to keep the superconductors working. A standard shipping container just won't do.
arstechnica.com/science/2025/0

Image of a grassy area with an abstract metal sculpture on the left, and a wooden sphere on the right.
Ars Technica · CERN gears up to ship antimatter across EuropeBy John Timmer
Public *
wobweger :verified:

we did it, we did it,
finally after centuries of trying

we made Gold.

a DIY step by step guide:

1. build a super collider
2. turn it for near miss collisions
3. watch lead being converted into gold
4. collect gold

warning operation cost may be a little high at the time, but this will get improve soon.
if you believe in AI, you have to believe this as well.
86 billion gold nuclei were created
piles up to 29 picograms 💰
home.cern/news/news/physics/al
mastodon.design/@tainome/11452

CERNALICE detects the conversion of lead into gold at the LHCIn a paper published in Physical Review Journals, the ALICE collaboration reports measurements that quantify the transmutation of lead into gold in CERN’s Large Hadron Collider (LHC). Transforming the base metal lead into the precious metal gold was a dream of medieval alchemists. This long-standing quest, known as chrysopoeia, may have been motivated by the observation that dull grey, relatively abundant lead is of a similar density to gold, which has long been coveted for its beautiful colour and rarity. It was only much later that it became clear that lead and gold are distinct chemical elements and that chemical methods are powerless to transmute one into the other. With the dawn of nuclear physics in the 20th century, it was discovered that heavy elements could transform into others, either naturally, by radioactive decay, or in the laboratory, under a bombardment of neutrons or protons. Though gold has been artificially produced in this way before, the ALICE collaboration has now measured the transmutation of lead into gold by a new mechanism involving near-miss collisions between lead nuclei at the LHC. Extremely high-energy collisions between lead nuclei at the LHC can create quark–gluon plasma, a hot and dense state of matter that is thought to have filled the universe around a millionth of a second after the Big Bang, giving rise to the matter we now know. However, in the far more frequent interactions where the nuclei just miss each other without “touching”, the intense electromagnetic fields surrounding them can induce photon–photon and photon–nucleus interactions that open further avenues of exploration. The electromagnetic field emanating from a lead nucleus is particularly strong because the nucleus contains 82 protons, each carrying one elementary charge. Moreover, the very high speed at which lead nuclei travel in the LHC (corresponding to 99.999993% of the speed of light) causes the electromagnetic field lines to be squashed into a thin pancake, transverse to the direction of motion, producing a short-lived pulse of photons. Often, this triggers a process called electromagnetic dissociation, whereby a photon interacting with a nucleus can excite oscillations of its internal structure, resulting in the ejection of small numbers of neutrons and protons. To create gold (a nucleus containing 79 protons), three protons must be removed from a lead nucleus in the LHC beams. “It is impressive to see that our detectors can handle head-on collisions producing thousands of particles, while also being sensitive to collisions where only a few particles are produced at a time, enabling the study of electromagnetic ‘nuclear transmutation’ processes,” says Marco Van Leeuwen, ALICE spokesperson. The ALICE team used the detector’s zero degree calorimeters (ZDC) to count the number of photon–nucleus interactions that resulted in the emission of zero, one, two and three protons accompanied by at least one neutron, which are associated with the production of lead, thallium, mercury and gold, respectively. While less frequent than the creation of thallium or mercury, the results show that the LHC currently produces gold at a maximum rate of about 89 000 nuclei per second from lead–lead collisions at the ALICE collision point. Gold nuclei emerge from the collision with very high energy and hit the LHC beam pipe or collimators at various points downstream, where they immediately fragment into single protons, neutrons and other particles. The gold exists for just a tiny fraction of a second. The ALICE analysis shows that, during Run 2 of the LHC (2015–2018), about 86 billion gold nuclei were created at the four major experiments. In terms of mass, this corresponds to just 29 picograms (2.9 ×10-11 g). Since the luminosity in the LHC is continually increasing thanks to regular upgrades to the machines, Run 3 has produced almost double the amount of gold that Run 2 did, but the total still amounts to trillions of times less than would be required to make a piece of jewellery. While the dream of medieval alchemists has technically come true, their hopes of riches have once again been dashed. “Thanks to the unique capabilities of the ALICE ZDCs, the present analysis is the first to systematically detect and analyse the signature of gold production at the LHC experimentally,” says Uliana Dmitrieva of the ALICE collaboration. “The results also test and improve theoretical models of electromagnetic dissociation which, beyond their intrinsic physics interest, are used to understand and predict beam losses that are a major limit on the performance of the LHC and future colliders,” adds John Jowett, also of the ALICE collaboration. Additional image:  Illustration of an ultra-peripheral collision where the two lead (208Pb) ion beams at the LHC pass by close to each other without colliding. In the electromagnetic dissociation process, a photon interacting with a nucleus can excite oscillations of its internal structure and result in the ejection of small numbers of neutrons (two) and protons (three), leaving the gold (203Au) nucleus behind (Image: CERN)  
#science#physics#cern
Public
Good News Community

CERN scientists transformed lead into gold through high-energy particle collisions at the Large Hadron Collider, a feat akin to ancient alchemy. Lead nuclei collide at near light speed, creating gold atoms briefly before decay. Though impractical due to cost, this demonstrates modern physics’s ability to make the impossible possible.

@goodnews

#ScienceBreakthrough #ModernAlchemy #CERN #ParticlePhysics #GoodNews #ScientificDiscovery
thedebrief.org/transmuting-lea

The Debrief · Transmuting Lead into Gold, CERN's Large Hadron Collider Achieves Alchemist’s Dreams for a Fraction of a SecondScience, Tech and Defense for the Rebelliously Curious.
Public
jbz

💥 ALICE detects the conversion of lead into gold at the LHC | CERN

｢ Near-miss collisions between high-energy lead nuclei at the LHC generate intense electromagnetic fields that can knock out protons and transform lead into fleeting quantities of gold nuclei ｣

home.cern/news/news/physics/al

CERNALICE detects the conversion of lead into gold at the LHCIn a paper published in Physical Review Journals, the ALICE collaboration reports measurements that quantify the transmutation of lead into gold in CERN’s Large Hadron Collider (LHC). Transforming the base metal lead into the precious metal gold was a dream of medieval alchemists. This long-standing quest, known as chrysopoeia, may have been motivated by the observation that dull grey, relatively abundant lead is of a similar density to gold, which has long been coveted for its beautiful colour and rarity. It was only much later that it became clear that lead and gold are distinct chemical elements and that chemical methods are powerless to transmute one into the other. With the dawn of nuclear physics in the 20th century, it was discovered that heavy elements could transform into others, either naturally, by radioactive decay, or in the laboratory, under a bombardment of neutrons or protons. Though gold has been artificially produced in this way before, the ALICE collaboration has now measured the transmutation of lead into gold by a new mechanism involving near-miss collisions between lead nuclei at the LHC. Extremely high-energy collisions between lead nuclei at the LHC can create quark–gluon plasma, a hot and dense state of matter that is thought to have filled the universe around a millionth of a second after the Big Bang, giving rise to the matter we now know. However, in the far more frequent interactions where the nuclei just miss each other without “touching”, the intense electromagnetic fields surrounding them can induce photon–photon and photon–nucleus interactions that open further avenues of exploration. The electromagnetic field emanating from a lead nucleus is particularly strong because the nucleus contains 82 protons, each carrying one elementary charge. Moreover, the very high speed at which lead nuclei travel in the LHC (corresponding to 99.999993% of the speed of light) causes the electromagnetic field lines to be squashed into a thin pancake, transverse to the direction of motion, producing a short-lived pulse of photons. Often, this triggers a process called electromagnetic dissociation, whereby a photon interacting with a nucleus can excite oscillations of its internal structure, resulting in the ejection of small numbers of neutrons and protons. To create gold (a nucleus containing 79 protons), three protons must be removed from a lead nucleus in the LHC beams. “It is impressive to see that our detectors can handle head-on collisions producing thousands of particles, while also being sensitive to collisions where only a few particles are produced at a time, enabling the study of electromagnetic ‘nuclear transmutation’ processes,” says Marco Van Leeuwen, ALICE spokesperson. The ALICE team used the detector’s zero degree calorimeters (ZDC) to count the number of photon–nucleus interactions that resulted in the emission of zero, one, two and three protons accompanied by at least one neutron, which are associated with the production of lead, thallium, mercury and gold, respectively. While less frequent than the creation of thallium or mercury, the results show that the LHC currently produces gold at a maximum rate of about 89 000 nuclei per second from lead–lead collisions at the ALICE collision point. Gold nuclei emerge from the collision with very high energy and hit the LHC beam pipe or collimators at various points downstream, where they immediately fragment into single protons, neutrons and other particles. The gold exists for just a tiny fraction of a second. The ALICE analysis shows that, during Run 2 of the LHC (2015–2018), about 86 billion gold nuclei were created at the four major experiments. In terms of mass, this corresponds to just 29 picograms (2.9 ×10-11 g). Since the luminosity in the LHC is continually increasing thanks to regular upgrades to the machines, Run 3 has produced almost double the amount of gold that Run 2 did, but the total still amounts to trillions of times less than would be required to make a piece of jewellery. While the dream of medieval alchemists has technically come true, their hopes of riches have once again been dashed. “Thanks to the unique capabilities of the ALICE ZDCs, the present analysis is the first to systematically detect and analyse the signature of gold production at the LHC experimentally,” says Uliana Dmitrieva of the ALICE collaboration. “The results also test and improve theoretical models of electromagnetic dissociation which, beyond their intrinsic physics interest, are used to understand and predict beam losses that are a major limit on the performance of the LHC and future colliders,” adds John Jowett, also of the ALICE collaboration. Additional image:  Illustration of an ultra-peripheral collision where the two lead (208Pb) ion beams at the LHC pass by close to each other without colliding. In the electromagnetic dissociation process, a photon interacting with a nucleus can excite oscillations of its internal structure and result in the ejection of small numbers of neutrons (two) and protons (three), leaving the gold (203Au) nucleus behind (Image: CERN)  
#lhc#cern#science
Public
Strange Quark

Last night's #CERN #Games Club event for the #RPG curious was a great success!

We had seven tables running various games including #DnD, #BladesInTheDark, #BladeRunner and #IntoTheOdd. Three of the GMs were from #SwissRPG. I didn't count exactly but I think we had about 50 participants, with around 25% coming from outside CERN.

I ran the #DCC #funnel "Underneath the Well of Brass". 8 players, 2 characters each, mortality rate was about 50%.

Goodman Games Dungeon Crawl Classics adventure, "Beneath the Well of Brass" on top of a map of the Devil's Maw from the adventure, with some dice, a Death stamp and a pack of TPK tissues.
Public
Jef

"Good news everyone!"

Ireland to become an Associate Member State of CERN

On 8 May 2025, CERN Director-General Fabiola Gianotti and Irish Minister for Further and Higher Education, Research, Innovation and Science James Lawless signed an agreement admitting Ireland as an Associate Member State of CERN

home.cern/news/press-release/c

CERNIreland to become an Associate Member State of CERNToday, CERN Director-General Fabiola Gianotti and the Minister for Further and Higher Education, Research, Innovation and Science of Ireland, James Lawless, signed an agreement admitting Ireland as an Associate Member State of CERN. The Associate Membership will enter into force once CERN has been informed that Ireland has completed all the necessary accession and ratification processes. “We are extremely happy to welcome Ireland as an Associate Member State of CERN. Irish scientists have been involved in CERN’s programmes for more than two decades, covering fields as varied as experimental physics, theory, medical applications and computer science. This agreement enables us to enhance our collaboration, opening up a broad range of new and mutually beneficial opportunities in fundamental research, technological developments and innovation, and education and training activities,” said Fabiola Gianotti, CERN Director-General. “I am delighted to have signed this Associate Membership Agreement with CERN. This represents the culmination of significant work by the Government and CERN, building on the excellence of the Irish physics community. As an associate member of one of the world’s most significant research organisations, Ireland will have an opportunity to gain access to excellent research, innovation, collaboration and industry contracts. This long-term international commitment to our scientific community will demonstrate the Irish Government’s continued and expanding support of Ireland’s participation in leading global research collaborations,” said James Lawless, Irish Minister for Further and Higher Education, Research, Innovation and Science. Universities from Ireland are participating in the LHC experiments ATLAS, CMS, and LHCb, as well in experiments at the ISOLDE facility. A number of  theoretical physics groups in Ireland also collaborate with CERN. Furthermore, Ireland has a strong interest in computer science, medical physics and civil engineering, and several of its universities are working with CERN on various projects in these fields. Ireland submitted its formal application to Associate Membership in November 2023. Associate Member State status was granted to Ireland by the CERN Council on 28 March 2025. As an Associate Member State, Ireland will be entitled to appoint representatives to attend meetings of the CERN Council, of the Finance Committee and of the Scientific Policy Committee. Irish nationals will be eligible to apply for limited-duration staff positions and CERN’s graduate programmes. Irish companies will be able to bid for CERN contracts, increasing opportunities for industrial collaboration in advanced technologies.
#cern#ireland#europe
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