Taking a closer look at LHC
On the Home page we present some of the most recent and interesting news on Particle Physics, (in our opinion and considering the purpose of our website), that have CERN (and the LHC, in particular) as a protagonist.
In the submenu of this section you will find these news items from previous years, which were initially on the Home page. Please note that some of the news items shown here were subsequently confirmed, updated and others discarded.
To follow all the events of interest more closely, you can visit the following websites.
More generally, you can visit the Links section of our website where you will find other links of interest.
Below is the news from the last month of the previous year.
The most precise measurement of the lifetime of the electrically neutral B meson.
Dec, 2024
The ATLAS collaboration has released a new high-precision measurement of the lifetime of the electrically neutral beauty (B0) meson – a hadron composed of a bottom antiquark and a down quark.
The new ATLAS precision measurements enhance the understanding of weak-force-mediated decays in the Standard Model and provide valuable data for future theoretical developments.
LHCb sheds light on two pieces of the matter–antimatter puzzle.
Dec, 2024
The collaboration LHCb has found evidence of CP violation in decays of baryons and in decays of beauty hadrons into charmonium particles.
(CERN Image)
In two new articles, the LHCb collaboration reports seeing evidence of CP violation in decays of baryons and in decays of beauty hadrons into charmonium particles.
The two studies mark significant steps towards establishing whether or not CP violation exists in these types of decays. Data from the third run of the LHC and from the collider’s planned upgrade, the High-Luminosity LHC, are set to shed further light on these and other pieces of the matter–antimatter puzzle.
ALICE finds first ever evidence of the antimatter partner of hyperhelium-4.
Dec, 2024
The ALICE measurement is based on lead–lead collision data taken in 2018 at an energy of 5.02 teraelectronvolts (TeV) for each colliding pair of nucleons (protons and neutrons). Using a machine-learning technique that outperforms conventional hypernuclei search techniques, the ALICE researchers looked at the data for signals of hyperhydrogen-4, hyperhelium-4 and their antimatter partners. Candidates for (anti)hyperhydrogen-4 were identified by looking for the (anti)helium-4 nucleus and the charged pion into which it decays, whereas candidates for (anti)hyperhelium-4 were identified via its decay into an (anti)helium-3 nucleus, an (anti)proton and a charged pion.
(CERN Image)
Hypernuclei are exotic nuclei formed by a mix of protons, neutrons and hyperons, the latter being unstable particles containing one or more quarks of the strange type.
Particle accelerator conducting real scientific research in CERN Science Gateway.
Dec, 2024
After years of development, the proton accelerator ELISA (Experimental Linac for Surface Analysis) is now being used for archaeological research at Science Gateway, CERN’s education and outreach centre.
This marks the first time a proton accelerator of this kind has been used for research as a part of a museum exhibition.
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AUTHORS Xabier Cid Vidal, PhD in experimental Particle Physics for Santiago University (USC). Research Fellow in experimental Particle Physics at CERN from January 2013 to Decembre 2015. He was until 2022 linked to the Department of Particle Physics of the USC as a "Juan de La Cierva", "Ramon y Cajal" fellow (Spanish Postdoctoral Senior Grants), and Associate Professor. Since 2023 is Senior Lecturer in that Department.(ORCID). Ramon Cid Manzano, until his retirement in 2020 was secondary school Physics Teacher at IES de SAR (Santiago - Spain), and part-time Lecturer (Profesor Asociado) in Faculty of Education at the University of Santiago (Spain). He has a Degree in Physics and a Degree in Chemistry, and he is PhD for Santiago University (USC) (ORCID). |
CERN CERN Experimental Physics Department CERN and the Environment |
LHC |
IMPORTANT NOTICE
For the bibliography used when writing this Section please go to the References Section
© Xabier Cid Vidal & Ramon Cid - rcid@lhc-closer.es | SANTIAGO (SPAIN) |
