Comments on: First Collisions in the LHC! http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/ Random samplings from a universe of ideas. Tue, 14 Feb 2012 18:03:28 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles | JetLib News http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-110068 Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles | JetLib News Sat, 05 Dec 2009 04:13:22 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-110068 [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...] [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...]

]]> By: JetLib News » LHC Beam Zooms Past 1 Trillion Electron Volts, Sets World Record http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109903 JetLib News » LHC Beam Zooms Past 1 Trillion Electron Volts, Sets World Record Mon, 30 Nov 2009 15:01:13 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109903 [...] Again; Scientists Celebrate with Caution DISCOVER: A Tumultuous Year at the LHC Cosmic Variance: First Collisions at the LHC! Cosmic Variance: Spooky Signals from the Future Telling Us to Cancel the [...] [...] Again; Scientists Celebrate with Caution DISCOVER: A Tumultuous Year at the LHC Cosmic Variance: First Collisions at the LHC! Cosmic Variance: Spooky Signals from the Future Telling Us to Cancel the [...]

]]> By: JetLib News » Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109852 JetLib News » Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles Sat, 28 Nov 2009 00:38:10 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109852 [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...] [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...]

]]> By: attila eori http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109821 attila eori Thu, 26 Nov 2009 23:34:40 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109821 great we are standing at the cradle of big discoveries great we are standing at the cradle of big discoveries

]]> By: James Mason http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109814 James Mason Thu, 26 Nov 2009 18:11:03 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109814 I can't wait for the angels and the demons to come pouring down on you. I can’t wait for the angels and the demons to come pouring down on you.

]]> By: SELF DEVELOPMENT BLOG » Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles | 80beats http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109812 SELF DEVELOPMENT BLOG » Baguettes and Saboteurs From the Future Defeated: LHC Smashes Particles | 80beats Thu, 26 Nov 2009 17:25:56 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109812 [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...] [...] the Tevatron at Fermilab on the outskirts of Chicago [Guardian]. The LHC’s Atlas detector snapped an image of two counter-rotating proton beams that collided [...]

]]> By: Ian Sample http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109809 Ian Sample Thu, 26 Nov 2009 08:17:20 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109809 It's wonderful to see the machine up and running at long last. Fingers crossed commissioning and ramping up goes smoothly. Blogs like this are a real service to the interested public. I'm from the UK, where we give £1.5m a week to Cern, and mostly that has been for the LHC. I know scientists want, and need, to run results through peer review channels etc, but don't underestimate the value of having any kind of running commentary on how the machine is doing and what, if anything, looks interesting in the collisions. The LHC is funded by taxpayers from more than 20 countries - we might as well say it belongs to everyone, not just you lucky people who get to play with it! Happy hunting! It’s wonderful to see the machine up and running at long last. Fingers crossed commissioning and ramping up goes smoothly. Blogs like this are a real service to the interested public. I’m from the UK, where we give £1.5m a week to Cern, and mostly that has been for the LHC. I know scientists want, and need, to run results through peer review channels etc, but don’t underestimate the value of having any kind of running commentary on how the machine is doing and what, if anything, looks interesting in the collisions. The LHC is funded by taxpayers from more than 20 countries – we might as well say it belongs to everyone, not just you lucky people who get to play with it! Happy hunting!

]]> By: Vickey http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109807 Vickey Thu, 26 Nov 2009 07:24:22 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109807 OMG............finally, I have been following the LHC since it was only an article in Scientific American. I am so excited, as ken mac said above "I can not get enough of this stuff" Will it be the Higgs Boson are something even more fantastic?? What new technology will come of what we learn, what Medical Breakthroughs?? Exhilarating! OMG…………finally, I have been following the LHC since it was only an article in Scientific American. I am so excited, as ken mac said above “I can not get enough of this stuff” Will it be the Higgs Boson are something even more fantastic?? What new technology will come of what we learn, what Medical Breakthroughs?? Exhilarating!

]]> By: John http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109804 John Thu, 26 Nov 2009 00:13:39 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109804 Roman: the event displays are made using the software that "reconstructs" the event from the raw digital information recorded for a collision. Only collision events that cause a readout "trigger" to fire are recorded. The trigger is typically based on a certain amount of energy deposited in the calorimeters, and we are presently running with a very low threshold, recording every collision we can. Later on, only one in a million or so will get recorded. It's mostly physicists who write the software to do all this, with a certain fraction of software engineers. Anyway, we have made many, many runs with cosmic rays, and recorded many events. That's why the counts are so high. Roman: the event displays are made using the software that “reconstructs” the event from the raw digital information recorded for a collision. Only collision events that cause a readout “trigger” to fire are recorded. The trigger is typically based on a certain amount of energy deposited in the calorimeters, and we are presently running with a very low threshold, recording every collision we can. Later on, only one in a million or so will get recorded. It’s mostly physicists who write the software to do all this, with a certain fraction of software engineers.

Anyway, we have made many, many runs with cosmic rays, and recorded many events. That’s why the counts are so high.

]]> By: Roman http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109801 Roman Wed, 25 Nov 2009 17:05:11 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109801 Congratulations to all involved. Could somebody explain to a lay person what the screen shot comes from - is this just control software for engineers working there or are physicists reading data from it? It looks so familiar - file, edit, view, window, help just like in my word processor. And I've notice that runs and event counts are kind of high already but we are just celebrating the first collisions. Congratulations to all involved.
Could somebody explain to a lay person what the screen shot comes from – is this just control software for engineers working there or are physicists reading data from it?
It looks so familiar – file, edit, view, window, help just like in my word processor. And I’ve notice that runs and event counts are kind of high already but we are just celebrating the first collisions.

]]> By: ken mac http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109800 ken mac Wed, 25 Nov 2009 11:51:21 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109800 Thanks so much for that great explanation! I can not get enough of this stuff, fascinating beyond belief. Thanks so much for that great explanation! I can not get enough of this stuff, fascinating beyond belief.

]]> By: Gabriel http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109797 Gabriel Wed, 25 Nov 2009 07:13:19 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109797 Congratulations to everyone who is involved! You guys are making history! Congratulations to everyone who is involved! You guys are making history!

]]> By: The LHC’s first collisions | misc.ience http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109789 The LHC’s first collisions | misc.ience Tue, 24 Nov 2009 22:18:33 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109789 [...] technical. A far more knowledgeable account of it, and the source of the quote above, can be found here (which, by the way, is a great [...] [...] technical. A far more knowledgeable account of it, and the source of the quote above, can be found here (which, by the way, is a great [...]

]]> By: Maledict http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109787 Maledict Tue, 24 Nov 2009 21:46:43 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109787 Oh, I'm soooo tired of hearing about the LHC! What value does it have in the real world? Why are we funding it? We could field another division of Xe Corp. in Afghanistan for what that damn thing costs! Tens of thousands of suspected terraist waterboardings could be accomplished for the U.S. investment alone! Where is your perspective? At long last, sir, have you no decency? Oh, I’m soooo tired of hearing about the LHC! What value does it have in the real world? Why are we funding it? We could field another division of Xe Corp. in Afghanistan for what that damn thing costs! Tens of thousands of suspected terraist waterboardings could be accomplished for the U.S. investment alone! Where is your perspective? At long last, sir, have you no decency?

]]> By: John http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109786 John Tue, 24 Nov 2009 21:07:06 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109786 Bruceleeowe: for a standard model Higgs boson we will have to be patient for a few years. But for a non-standard-model Higgs boson, who knows? Maybe next year. I am on it... Bruceleeowe: for a standard model Higgs boson we will have to be patient for a few years. But for a non-standard-model Higgs boson, who knows? Maybe next year. I am on it…

]]> By: Im LHC kollidieren schon die Protonen, noch mit geringer Energie und Teilchenzahl « Skyweek Zwei Punkt Null http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109778 Im LHC kollidieren schon die Protonen, noch mit geringer Energie und Teilchenzahl « Skyweek Zwei Punkt Null Tue, 24 Nov 2009 16:24:41 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109778 [...] dann sollten auch schon eine Menge Kollisionsereignisse im Kasten sein. Mehr von Symmtry Breaking, Cosmic Variance, New York [...] [...] dann sollten auch schon eine Menge Kollisionsereignisse im Kasten sein. Mehr von Symmtry Breaking, Cosmic Variance, New York [...]

]]> By: Bruceleeeowe http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109772 Bruceleeeowe Tue, 24 Nov 2009 15:01:19 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109772 Finally it has been started. We were waiting from a long time. Still questions... Finally could it detect so called higgs boson? Finally it has been started. We were waiting from a long time. Still questions… Finally could it detect so called higgs boson?

]]> By: GodZirra! http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109768 GodZirra! Tue, 24 Nov 2009 11:48:44 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109768 Finally. Finally.

]]> By: LHC成功完成首次粒子对撞 « 每日IT新闻，最新IT资讯，聚合多站点消息，保证你与世界同步 http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109767 LHC成功完成首次粒子对撞 « 每日IT新闻，最新IT资讯，聚合多站点消息，保证你与世界同步 Tue, 24 Nov 2009 11:38:11 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109767 [...] 在大强子对撞机（LHC）首次尝试注入粒子束四天之后，欧洲粒子物理研究所（CERN）宣布它成功完成了首次质子束对撞，为了这一时刻科学家们已经等待了数年。未来几周他们将会增加质子束的能量强度和首次尝试加速。 CERN新闻稿称，他们注入了两束质子流，每束能量为450 GeV，粒子没有加速到更高能量，它们分别从两个方向同步绕行，能在环型隧道内完成多达两处交会。在注入几小时后，CMS探测器记录到了首次粒子对撞。如果一切运转正常，CERN计划在年底前完成2.4 TeV（高于费米实验室Tevatron对撞机的1.96 TeV）能量级别的对撞，明年初达到7 TeV。 [...] [...] 在大强子对撞机（LHC）首次尝试注入粒子束四天之后，欧洲粒子物理研究所（CERN）宣布它成功完成了首次质子束对撞，为了这一时刻科学家们已经等待了数年。未来几周他们将会增加质子束的能量强度和首次尝试加速。 CERN新闻稿称，他们注入了两束质子流，每束能量为450 GeV，粒子没有加速到更高能量，它们分别从两个方向同步绕行，能在环型隧道内完成多达两处交会。在注入几小时后，CMS探测器记录到了首次粒子对撞。如果一切运转正常，CERN计划在年底前完成2.4 TeV（高于费米实验室Tevatron对撞机的1.96 TeV）能量级别的对撞，明年初达到7 TeV。 [...]

]]> By: Gordon Stangler http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc/comment-page-1/#comment-109758 Gordon Stangler Tue, 24 Nov 2009 06:38:49 +0000 http://blogs.discovermagazine.com/cosmicvariance/?p=3359#comment-109758 Completely awesome. Even with all the delays, it was well worth it. Completely awesome. Even with all the delays, it was well worth it.

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