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CERN Video News: LHC performance workshop in Chamonix 2012
El LHC incrementará la energÃa de las colisiones en 2012
El Centro Europeo para la Investigación Nuclear (CERN) anunció hoy que el Gran Colisionador de Hadrones (LHC) funcionará con una energÃa en cada haz de partÃculas de 4 TeV (teraelectronvoltios), 0.5 más que en 2010 y 2011. Esta decisión fue tomada por la dirección del CERN siguiendo las recomendaciones establecidas en un seminario sobre el funcionamiento del LHC que se celebró la semana pasada en Chamonix (Francia), y en un informe emitido por un comité externo.
Read more »» El LHC incrementará la energÃa de las colisiones en 2012
| Astrofisica, Atlas, CERN, Ciencia, CMS, Cosmologia, cpan, CSIC, Fisica, Fisica de particulas, Fisica Nuclear, Fisica Teorica, LHC, Matematicas, Mecanica cuantica, Science| No CommentsInterview to Murray Gell-Mann at CERN on 23.01.2012
Murray Gell-Mann on Supersymmetry, LHC backgrounders series
Murray Gell-Mann on the Higgs field.
El desafÃo Antártico: Una advertencia global
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El desafÃo Antártico: Una advertencia globalEl desafÃo Antártico es una pelÃcula para televisión en alta definición, una hora de documental que explora el pasado, presente y futuro de la exploración cientÃfica en el continente más misterioso del mundo haciendo énfasis en anunciar los últimos descubrimientos sobre el tema del cambio climático. De la primera expedición cientÃfica de Ernest Shackleton hace 100 años a los cientÃficos de hoy, los datos antiguos, nuevos y todavÃa inéditos plantean preguntas sobre lo que está ocurriendo en la Antártida y su impacto en el resto del mundo. Rating 0/10
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5th report from the LHC performance workshop
The morning session on Friday 10 February - the final day of the workshop - saw further examination of the challenges of the High Luminosity LHC and included a look at the state of R&D for the new magnets required for the high luminosity interaction regions.
There was then an entertaining look at even more distant future. Possible future projects under consideration include the Large Hadron electron Collider (LHeC) which foresees colliding 60 GeV electrons with 7 TeV protons, and the High Energy LHC (HE-LHC) in which the beam energy of the LHC is increased from 7 to 16.5 TeV. Serious technological challenges exist for both these options.
In the afternoon Steve Myers, CERN's Director for Accelerators and Technology, presented a summary of the workshop recommendations. In brief, the LHC should operate at 4 TeV in 2012 with the key priorities being: delivering enough luminosity to ATLAS and CMS to allow them to independently discover or exclude the Higgs; the proton-Lead ion run; and machine development programme that targets operation after the long technical shutdown. Over 15 fb-1 luminosity is the necessary and apparently achievable target. Progress should be carefully monitored with 2 check points during the year - a run extension was not ruled out if necessary to meet the target integrated luminosity. A detailed start-up strategy is to be developed.
| | No Comments4th report from the LHC performance workshop
On a relatively warm Thursday morning in Chamonix (-7 Celsius) the workshop looked at what things would be like after the upcoming long shutdown (LS1 - 2013/14). A large number of re-training quenches of the LHC dipoles will be required in order to reach the nominal energy of 7 TeV so the beam energy in the first years after LS1 is expected to be around 6.5 TeV. The planned injector upgrades will not have been deployed at this stage, but the injector performance still looks capable of supplying sufficient beam quality to enable the LHC to exceed the design luminosity of 1x1034 cm-2s-1.
A lot has been learned operating at 3.5 TeV over the last couple of years and many improvements have been made in the magnet powering and protection systems. The prospects for post-LS1 machine availability are encouraging. Potential limitations to post-LS1 performance (quenches, radiation to electronics, UFOs) were also considered.
The evening was spent considering the more dim and distant future and the prospects for the LHC Injector Upgrade project and its client, the High-Luminosity LHC (HL-LHC), tentatively scheduled to start operating around 2022. The goals of the HL-LHC are ambitious (200 - 300 inverse femtobarns per year) and the demands on the upgraded injectors reflect this. The devil is in the detail but it's clear a lot of work remains to be done.
| | No CommentsAnalizan el plasma de quarks y gluones en el origen del Universo
http://videociencia.es//videos/36/quarks
CientÃficos expertos de varios paÃses analizan desde hoy datos del experimento llevado a cabo en el laboratorio europeo de partÃculas CERN de recrear el plasma en el que quarks y gluones flotaban fuera de las órbitas de protones y neutrones millonésimas de segundo después del ‘Big Bang’, un fluido que podrÃa haber dado origen al Universo.
Read more »» Analizan el plasma de quarks y gluones en el origen del Universo
| Alice, Astrofisica, CERN, Ciencia, Cosmologia, España, Fisica, Fisica de particulas, Fisica Teorica, gluones, LHC, Matematicas, Mecanica cuantica, Modelo estandar, Muones, Science| No Comments
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![[image]](http://mowser.com/img?url=http%3A%2F%2Fwww.nasa.gov%2Fimages%2Fcontent%2F623302main_cassini021512_516-387.jpg "Rhea Before Titan")
