• Quantum particle's state in momentum eigenfunctions basis

    Updated: 2024-04-23 10:07:16
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  • TomL - old physics guy

    Updated: 2024-04-23 02:06:47
    Insights Blog Browse All Articles Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio Chem Articles Technology Guides Computer Science Tutorials Forums Trending Featured Threads Log in Register What's new Search Search Everywhere Threads This forum This thread Search titles only : By Search Advanced search… Menu Log in Register Navigation More options Contact us Close Menu JavaScript is disabled . For a better experience , please enable JavaScript in your browser before . proceeding You are using an out of date browser . It may not display this or other websites . correctly You should upgrade or use an alternative browser Forums The Lounge General Discussion New Member Introductions TomL

  • Seeking online physics course using Berkeley Physics Vol 3 (Waves)

    Updated: 2024-04-23 00:31:23
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  • Insulator band gap and applied voltage?

    Updated: 2024-04-22 18:05:09
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  • Variation of the kinetic term in scalar field theory

    Updated: 2024-04-22 15:10:03
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  • Can proton/neutron decay be avoided in some conditions?

    Updated: 2024-04-22 01:35:58
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  • Collider Physics for Theory Students

    Updated: 2024-04-22 01:35:55
    This is another post on my “farewell tour” (which will last until I can properly say farewell). I thought it was important to write one more literature guide since my QFT and SUSY guides seemed reasonably popular. For the first time since the deep inelastic experiments of the ’60s the high energy physics community is … … Continue reading →

  • Arrival in Cambridge

    Updated: 2024-04-22 01:35:55
    This unfinished draft has been sitting in my blog directory for almost two years now. I think I’ll just leave it as-is and share it as a memory of my first week in the UK. I have similar scraps of paper recounting thoughts while I was on the plane to London, on the train from … … Continue reading →

  • LaTeX Etiquette

    Updated: 2024-04-22 01:35:55
    Here’s another post that I wished I could flesh out more had time permitted. A few subtler points of LaTeX etiquette… Quotation marks: use ` and “ instead of ‘ and ” for opening quotations, or else your quotes will look silly. Bras and kets: use \langle, \rangle instead of less-than, greater-than Align your equations! … … Continue reading →

  • Five Under-Appreciated Ideas in Undergrad Physics

    Updated: 2024-04-22 01:35:55
    This is an old post that I never got around to fleshing out and finishing. I figured it was worth posting before letting my blog freeze-out (yeah, that was a Boltzmann equation reference). More than half a decade ago I was sitting in the same course and had a very inspirational TA and now I’ve … … Continue reading →

  • PiTP 2008 lectures online

    Updated: 2024-04-22 01:35:55
    Yeah, I’m supposed to have written my “goodbye” post by now… but things have been really busy. So instead, here’s a link to the PiTP 2008 lectures (recently released): http://video.ias.edu/PiTP2008 Enjoy!

  • LHC Quench Stops CERN: Re-start Delayed Again

    Updated: 2024-04-22 01:35:52
    : : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Thursday , September 25, 2008 LHC Quench Stops CERN : Re-start Delayed Again After last Friday's massive quench at the LHC , CERN has announced that re-starting the collider will have to wait even beyond 2 months for repairs and downtime . With a planned winter shutdown in late November , even if the collider were ready , there would not be enough time to continue tests . Re-start of the LHC should be in April 2009. Day 7 into the major accident damaging part of the LHC helium cooling and superconducting magnet systems , indicates little progress as yet . Scientists at CERN are still investigating the failure in Sector 3-4, an eighth of the 17 mile ring of magnets that are normally cooled to near absolute

  • Accident Cripples LHC

    Updated: 2024-04-22 01:35:52
    : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Friday , September 19, 2008 Accident Cripples LHC No collisions , no beams either next week at the LHC . The BBC reports an alarming quench of about 100 superconducting magnets today , that heated up as much as 100 C . A tonne of liquid helium spilled into the tunnel and the CERN fire brigade went in . Cause of the quenching has not been announced , nor have any injuries been reported . Liquid helium leaks vaporize back to a gas almost instantly and would freeze or choke personnel . present Ordinarily magnet quenches occur when proton beams are lost or scatter into magnets , causing helium coolant and magnets to heat and lose their superconductivity and their power to keep proton beams within the collider .

  • LHC Fails Thunderstorm Test

    Updated: 2024-04-22 01:35:52
    : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Wednesday , September 17, 2008 LHC Fails Thunderstorm Test Nature had her own ideas about testing LHC safety . A thunderstorm last Friday knocked out some transformers at the LHC near Geneva that are part of the helium cooling system , that cools the magnets that keep the proton beams travelling near light speed on a circular path through the collider . Technicians have been scrambling to fix the problems , but not before some magnets warmed well above standard operating temperatures , some reaching almost 7K from the usual ultra cold 1.9K Electromagnets at the LHC need to be this cold to be superconducting , or at peak efficiency , in order to deliver extremely high magnetic fields in the 27 km ring of 1200

  • LHC Not So Safe

    Updated: 2024-04-22 01:35:51
    : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Friday , September 12, 2008 LHC Not So Safe The Greek Security Team , computer hackers who know Greek at least , left this souvenir behind on the CMS experiment's computer system . The attacks went on for two days , September 9 and 10, part way into First Beam commissioning . We are 2600 dont mess with us was their . sign-off One of the CMS team fighting off the hackers said it was a scary experience Dr James Gillies , chief spokesperson for CERN said It was quickly detected . A half dozen files were uploaded by the hackers . One CMS computer file was damaged . It could have been worse . An CERN insider commented that if the attackers had penetrated into a second computer system , some of the CMS could have

  • CMS resolves states with a mass difference of 19 MeV

    Updated: 2024-04-22 01:35:50
    This week the CMS Collaboration released a paper reporting the measurement of the ratio of production cross sections for the χb2(1P) and the χb1(1P) heavy meson states (arXiv:1409.5761). The motivation stems from the theoretical difficulties in explaining how such states are formed, but for me as an experimenter the most striking feature of the analysis […]

  • The Black Hand Of Dr Cern

    Updated: 2024-04-22 01:35:50
    : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Sunday , September 7, 2008 The Black Hand Of Dr Cern Not a 50's B movie , but the latest Press Release from the biggest black hole on the planet , sucking up an astronomical 10 billion and ready for more , gulp dollars . What an appetite Even now it's going after spare change . 10 million a month from the U.S . alone . When will it end Is any sofa safe from the Black Hand of Dr Cern Of course it says it doesn't want your money . This monster Collider has some self-respect . It sends out Press Releases , like this one , all nice and cosy from September 5th , CERN reinterates safety on eve of first beam like on a snowy winter's eve with a baby first beam , http : press.web.cern.ch press PressReleases

  • Stop CERN Euro Court Action Slips And Slides Forward

    Updated: 2024-04-22 01:35:50
    : skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Monday , September 1, 2008 Stop CERN Euro Court Action Slips And Slides Forward LHC Kritiks in Switzerland , Germany and Austria survived the first ruling on their case by the European Court for Human Rights , August 29th . So did CERN's Large Hadron Collider , which will go ahead while the court action continues . A stunningly quick decision by the ECHR only 3 days after the complaint was filed against CERN and its 20 member countries from the EC , denies any Interim Measures that would have forced CERN to suspend operations of the . LHC Soon to be the world's most powerful atom smasher and the biggest and most costly science experiment ever , the 10 billion LHC straddles the borders of Switzerland and

  • A possible return on race

    Updated: 2024-04-22 01:35:49
    Third generation superparticles search is one of the main goals of the present LHC activities. Previ

  • Decay chains

    Updated: 2024-04-22 01:35:49
    As the production of s-quarks and gluinos is favored if kinematically allowed, these particles would

  • Supersymmetry searches

    Updated: 2024-04-22 01:35:48
    As discussed before, SUSY theories introduce the existence of particles at the TeV scale, so these c

  • Local Supersymmetry

    Updated: 2024-04-22 01:35:48
    As already seen, the MSSM contains a high number of degrees of freedom. The impossibility to have gu

  • Original HBT experiment with mercury isotope lamp

    Updated: 2024-04-20 17:30:52
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  • Dirac's coordinates ##(\tau, \rho)## for the Schwarzschild metric with ##r \le 2m##

    Updated: 2024-04-19 09:22:18
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  • Large eruption at Ruang volcano, Indonesia

    Updated: 2024-04-18 00:46:59
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  • MCNP: Declaring two sources in two cells

    Updated: 2024-04-17 16:41:27
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  • PETER HIGGS SYNCHRONICITY: GOD PARTICLE CODEX

    Updated: 2024-04-15 20:23:19
    Noble Prize winning physicist Peter Higgs, was born Peter Ware Higgs on May 29, 1929. Peter Higgs pa

  • Two recent tests of loop quantum gravity theory

    Updated: 2024-04-15 00:15:10
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  • Completeness of Eigenfunctions of Hermitian Operators

    Updated: 2024-04-12 07:47:01
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  • Nanos Gigantum Humeris Insidentes...

    Updated: 2024-04-11 02:40:46
    Colleagues remember Peter Higgs as an inspirational scientist, who remained humble despite his fame.

  • Peter Higgs - In memoriam

    Updated: 2024-04-11 00:36:32
    Peter Higgs passed recently and his name is associated with one of the biggest concepts of 20th phys

  • Father of The God Particle goes to meet his maker, and it's not who you think

    Updated: 2024-04-10 13:21:49
    Peter Higgs, the theoretical physicist also fondly nicknamed the Father of the God Particle sadly pa

  • Goodbye Peter Higgs, And Thanks For The Boson

    Updated: 2024-04-09 22:56:51
    Peter Higgs passed away yesterday, at the age of 94. The scottish physicist, a winner of the 2013 Nobel Prize in Physics together with Francois Englert, hypothesized in 1964 the existence of the most mysterious elementary particle we know of, the Higgs boson, which was only discovered 48 years later by the ATLAS and CMS collaborations at the CERN Large Hadron Collider. ead more

  • Unveiling the Cosmos: Beyond the Standard Model

    Updated: 2024-03-21 17:18:37
    In the realm of modern physics, the quest to understand the universe’s fundamental nature has

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