Q&A: The Higgs boson. 4 July 2012Last updated at 04:16 ET Six theoreticians, including the English physicist Peter Higgs, first proposed the Higgs mechanism in 1964 Scientists at the Large Hadron Collider (LHC) have discovered a new sub-atomic particle consistent with the long-sought Higgs boson. The particle's confirmation would stand out as one of the great scientific achievements of the 21st Century so far.
But what exactly is the Higgs boson, and why have particle physicists spent more than 40 years searching for it? The Higgs so far definitively exists only in the minds of theoretical physicists. There is a sturdy theory for how much of the Universe works - all of the particles that make up atoms and molecules and all the matter we see, most of the forces that direct them, and a small zoo of more exotic particles. Best explanation of Higgs boson? Scientists' best theory for why different things have mass is the "Higgs field" - where mass can be seen as a measure of the resistance to movement.
LHCb. Taking a closer look at LHC - PHYSICS AT LHC. Physics teachers in secondary schools usually mention the LHC or CERN only because of the enormous size of the accelerators and detectors used there, the number of scientists involved in their activities and also the necessary international scientific collaboration. Impressive pictures of the accelerators and detectors are also shown. This is correct but clearly incomplete since there are other didactic possibilities to explore while talking about one of the most important scientific institutions in the world. The aim of this Section is to introduce a few simple physical calculations about some phenomena that took place in the LHC .
They can be used in the classroom in order to stimulate the curiosity of students, to help them to understand those physical concepts, and as an example of the relationship between the ‘cold equations’ of physics on the blackboard and the exciting work in scientific research. Particle physics for high school students. GridPP - UK Computing for Particle Physics. This introduction answers some frequently asked questions about the Grid: What is the Grid? Why do we need the Grid? What makes the Grid different from the Web or Internet? What is GridPP doing? Who and what is involved in GridPP? Who else is using Grids? It will also discuss Grid middleware, running a Grid, Grids beyond particle physics and Gridsite, a website tool developed by GridPP.
What Is The Grid? Imagine sitting down at your computer with only a screen, keyboard and mouse but still having limitless computing power. During the late 60s the US government developed a Wide Area Network (WAN) to help scientists around America communicate more efficiently. While an amazing facility, the web merely distributes information. There are some other very good introductory Internet resources on the Grid and GridPP.
GridPP have produced: A four page flyer. Why Do We Need The Grid? Return To The Top What Makes The Grid Different From The Web Or Internet? Middleware Explained What Is GridPP Doing? Broadcast Yourself. Welcome to YouTube! The location filter shows you popular videos from the selected country or region on lists like Most Viewed and in search results.To change your location filter, please use the links in the footer at the bottom of the page. Click "OK" to accept this setting, or click "Cancel" to set your location filter to "Worldwide". The location filter shows you popular videos from the selected country or region on lists like Most Viewed and in search results. To change your country filter, please use the links in the footer at the bottom of the page.
Creative Commons licenses provide a standard way for content creators to grant someone else permission to use their work. YouTube allows users to mark their videos with a Creative Commons CC BY license [attribution - reuse allowed]. For more information on the CC BY license—a summary of the full with the full license accessible at the bottom of the page—please visit this page on CreativeCommons.org. Videos in the public domain. Spotlight on CERN: the GRID computing. The Grid. Οδοιπορικό στο CERN « Μετα την εφημεριδα. «Οταν προσπαθώ να εξηγήσω στην οχτάχρονη κόρη μου τι δουλειά κάνω, της λέω ότι φτιάχνουμε το μεγαλύτερο μικροσκόπιο του κόσμου και να σου πω την αλήθεια είναι αρκετά ακριβές αυτό». Περπατάω στους δρόμους του CERN, του ευρωπαϊκού οργανισμού για την πυρηνική έρευνα με τον 34χρονο Γιάννη Παπαδόπουλο, έναν από τους περίπου 20 μόνιμους ερευνητές που διαθέτει η χώρα μας σε αυτήν τη γωνιά της Γενεύης, στην Ελβετία.
Πηγαίνουμε να συναντήσουμε τα υπόλοιπα μέλη της ελληνικής επιστημονικής ομάδας, που βρίσκεται εδώ στο πλαίσιο της πρώτης ξενάγησης που οργάνωσε το ερευνητικό κέντρο, ειδικά για Ελληνες δημοσιογράφους. Το αντικείμενο της συνάντησης είναι βεβαίως ο μεγάλος επιταχυντής Αδρονίων (Large Hadron Collider), ένα τεραστίου μεγέθους διεθνές ερευνητικό πρόγραμμα Σωματιδιακής Φυσικής Υψηλών Ενεργειών, που αναμένεται να τεθεί σε λειτουργία τον επόμενο Μάιο και να απαντήσει σε θεμελιώδη ερωτήματα των επιστημόνων για την σύσταση της ύλης και την ιστορία της γέννησης του Σύμπαντος.
Εξωτικά φαινόμενα. LHC@home. LHC - What is the Grid? LHC Computing Grid Globe (Credit: CERN) The Large Hadron Collider (LHC) is the most powerful particle accelerator ever built. Based at the European particle physics laboratory CERN, near Geneva in Switzerland, it is the world’s largest laboratory and is dedicated to the pursuit of fundamental science. The LHC allows scientists to reproduce the conditions that existed within a billionth of a second after the Big Bang. This is the moment, around 14 billion years ago, when the Universe is believed to have started with an explosion of energy and matter. During this first moment of time the particles and forces that shaped our Universe came into existence. Scientists recreate these conditions by colliding beams of high-energy protons or ions at close to the speed of light. This takes place inside the LHC’s 27km circular accelerator 100m below the ground. On 4 July 2012 two of the experiments on the LHC, ATLAS and CMS, announced that they had detected a Higgs-like Boson.
LHC - The Particle Detectives. LHC Computing Grid Globe (Credit: CERN) The Large Hadron Collider (LHC) is the most powerful particle accelerator ever built. Based at the European particle physics laboratory CERN, near Geneva in Switzerland, it is the world’s largest laboratory and is dedicated to the pursuit of fundamental science. The LHC allows scientists to reproduce the conditions that existed within a billionth of a second after the Big Bang. This is the moment, around 14 billion years ago, when the Universe is believed to have started with an explosion of energy and matter.
During this first moment of time the particles and forces that shaped our Universe came into existence. Scientists recreate these conditions by colliding beams of high-energy protons or ions at close to the speed of light. On 4 July 2012 two of the experiments on the LHC, ATLAS and CMS, announced that they had detected a Higgs-like Boson. LHC - LHC 'Big Questions' LHC Computing Grid Globe (Credit: CERN) The Large Hadron Collider (LHC) is the most powerful particle accelerator ever built.
Based at the European particle physics laboratory CERN, near Geneva in Switzerland, it is the world’s largest laboratory and is dedicated to the pursuit of fundamental science. The LHC allows scientists to reproduce the conditions that existed within a billionth of a second after the Big Bang. This is the moment, around 14 billion years ago, when the Universe is believed to have started with an explosion of energy and matter. During this first moment of time the particles and forces that shaped our Universe came into existence. Scientists recreate these conditions by colliding beams of high-energy protons or ions at close to the speed of light.
On 4 July 2012 two of the experiments on the LHC, ATLAS and CMS, announced that they had detected a Higgs-like Boson. Welcome To The Grid On Tryscience. EGEE Project: Grids for kids. E-Science - Kids inspired by Grid Computing. Wednesday 28 November 2007 Kids inspired by Grid Computing The complexities of Grid computing may seem like a barrier to explaining it to 10 and 11 year olds.
But the UK’s first ‘Grids for Kids’ day proved that idea wrong. The event, held at RAL, hosted 36 children from the local Stephen Freeman Primary School. The National Grid Service was one of the sponsors of the event, along with GridPP, EGEE, the Science and Technology Facilities Council and ISSeG. Multiple activities and sessions were organised for the children, who took part in it all with enthusiasm and interest. But the best bit of the day for a lot of people was the grid games (www.tryscience.org/grid). Philippa Strange, the event’s organiser said "I was inspired to hold our own event here after reading about the Grids for Kids day at CERN. . © 2014 Science and Technology Facilities Council - All Rights Reserved. Grid computing. What is grid computing? Although "the Grid" is still just a dream... grid computing is already reality. Imagine several million computers from all over the world, and owned by thousands of different people.
Imagine they include desktops, laptops, supercomputers, data vaults, and instruments like mobile phones, meteorological sensors and telescopes... Now imagine that all of these computers can be connected to form a single, huge and super-powerful computer! This huge, sprawling, global computer is what many people dream "The Grid" will be. "The Grid" takes its name from an analogy with the electrical "power grid". Let's compare an electrical power grid with the dream "Grid": "The Grid" doesn't yet exist in this form; however, the world already has hundreds of smaller grids... The pathway to inquiry based science education spic efk. ISOTDAQ - where students learn about trigger and data acquisition. Where can students learn to implement a good trigger and to design the data acquisition system for today’s increasingly complex experiments?
Universities rarely include classes on such specific topics. The ISOTDAQ School trains students and helps them gain hands-on experience of trigger systems, data-acquisition hardware and software, and data-transfer technologies. One of the commercially available FPGA development boards from Altera. This was used in one of the practical exercises at ISOTDAQ2011 to teach students the principles of FPGA programming. The second International School of Trigger and Data Acquisition (ISOTDAQ) was held from 9 to 16 February at the Physics Department of Rome University, ‘La Sapienza’. The School was jointly organised and sponsored by CERN, INFN, ACEOLE (a Marie Curie Initial Training Network at CERN), and National Instruments. This year almost fifty students took part in the School. ISOTDAQ school students during a lab session. by CERN Bulletin. LHC computing grid pushes petabytes of data, beats expectations. The LHC isn't simply the most powerful particle accelerator ever created.
Handling the huge amounts of data it produces has required the creation of one of the biggest computer grids on the planet. The planning and testing of the compute facilities has been taking place for years, but it's only recently that the grid has had to deal with the output from actual collisions. How did it do? "From the IT perspective, we didn't notice when the beams came on," said CERN's Wolfgang von Rueden, "We had tested it with much higher throughput conditions. " Still, not everything is working quite according to plan. von Rueden said that the initial expectations for the LHC's computing grid had anticipated lower network performance and a reliance on tape; instead, the network has made it easier to shuffle large data sets between compute centers, and the price and performance of hard drives have turned out better than expected. Moving data Supporting users and companies. Openlab Reports. CERN needs to define approaches for achieving the dual goals of connecting its operational network to the Internet while at the same time keeping its industrial control systems secure from external and internal attacks.
With this in mind, the ISA-99 international cyber security standard was adopted as a reference model to define a set of implementation guidelines and a list of security robustness criteria applicable to any network device. Device security represents a key link in the defense-in-depth concept (See Figure ISA reference model for the Distributed Control Systems), as some attacks will inevitably penetrate security boundaries and thus require further protection measures. Since no solutions based on security standards are available on the market, a wide investigation of the current cyber security testing techniques and systems has been performed in the first phase of the project. Software engineering One of the constant feature requests by CERN users is Web Support in PVSS. Grid Computing Info Centre (GRID Infoware)
Press Release - LHC Computing Grid Goes Online. The world's particle physics community today announced the launch of the first phase of the LHC computing Grid (LCG). The LCG is designed to handle the unprecedented quantities of data that will be produced by experiments at CERN1's Large Hadron Collider (LHC) from 2007 onwards.
"The LCG will provide a vital test-bed for the new Grid computing technologies that are set to revolutionise the way scientists use the world's computing resources in areas ranging from fundamental research to medical diagnosis," said Les Robertson, CERN's LCG project manager. The computational requirements of the experiments that will operate at the LHC are enormous. Some 12-14 petabytes of data will be generated each year, the equivalent of more than 20 million CDs. "The Grid enables us to harness the power of scientific computing centres wherever they may be to provide the most powerful computing resource the world has to offer," said Ian Bird, head of Grid deployment at CERN.
Notes for editors Contacts. LHC Grid Fest (03 October 2008) The Event.