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0:50
Michele Higgs Aspen Board of Realtors and Harrington Real Estate from the floor of the 2007 C.A.R. Convention in Colorado Springs.
24 Jan 2008
214
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2:31
Si presume che se esso ha una massa compresa tra i 114 e i 185 GeV (scartando il range tra i 160 e i 170 GeV),lo si troverà di certo nel Large Hadron Collider (LHC) del CERN. Di fatto,una luminosità integrata di soli 10^4 picobarn inversi sarà sufficiente per trovare il bosone di Higgs;ciò significa che basterà una luminosità molto più modesta di quella prevista dai costruttori dell'LHC. I progetti inerenti all'LHC del CERN,mirano ad aumentare le energie di collisione fino a raggiungere la fascia dei Tera elettron Volt (10^12 eV),alla ricerca di prove della supersimmetria e dell'ormai "famigerato" bosone di Higgs (tutte componenti del modello standard della fisica delle particelle elementari). Secondo J.D.Barrow comunque,anche le energie che ci si aspetta di raggiungere all'LHC sono ancora al di sotto di un fattore di circa un milione di miliardi per raggiungere le energie necessarie per controllare sperimentalmente lo schema di una quadruplice unificazione, proposto da una "Teoria del Tutto".Sul sito ufficiale del "Progetto ATLAS" ( *******atlas.ch/ ),è possibile vedere un filmato realizzato dall'INFN in cui vengono spiegati (a grandi linee), gli obiettivi principali di tale progetto.Il filmato si trova a questo link: *******www.lnf.infn.it/media/video/at... (la seconda metà del filmato è quella più interessante). A mio avviso,se il bosone di Higgs non verrà identificato neppure nei prossimi esperimenti all'ATLAS (l'apparato all'interno dell'LHC del CERN),ciò non creerà alcun imbarazzo per i fisici che da diversi decenni ormai stanno cercando di rilevarlo.È vero che alcuni esperimenti compiuti nel corso dell'ultimo decennio, hanno cominciato a limitare notevolmente lo spazio parametrico per questa particella, ma finorà non è mai emerso nessun risultato significativo.A ben vedere,la teoria che descrive tale particella scalare con spin nullo (ovvero il bosone di Higgs),ad un livello assai profondo soffre di gravi problemi formali.Uno di questi (...forse il peggiore),è che le particelle scalari sono notoriamente sensibili alla nuova fisica che potrebbe subentrare a scale di energia molto alte (come quelle che verranno utilizzate nel progetto ATLAS,rimanendo nello specifico).Se le forze: forte,debole ed elettromagnetica sono unificate ad una certa scala-livello di energia,e il bosone di Higgs diventa parte di una struttura maggiore, diventa virtualmente impossibile mantenere "leggera" la particella scalare quando le particelle ad essa affini diventano "pesanti".Nel modello standard non è possibile preservare la gerarchia delle scale in alcun modo naturale.Tutto comunque si verrebbe a risolvere con l'introduzione,a tal punto,del concetto di supersimmetria. Ogni bosone e ogni fermione in una coppia supersimmetrica danno lo stesso contributo alla massa efficace del bosone di Higgs,ma il loro contributo è di segno opposto.In ultima analisi quindi,gli effetti di tutte le particelle virtuali (dei fermioni e dei bosoni),si annullano facendo sì che la massa del bosone di Higgs non risenta dell'influenza della fisica a scale di energia più alte.Rimane comunque a questo punto un problema di fondo:Se le particelle ordinarie vengono divise in massa dalle loro partner supersimmetriche,viene a mancare il meccanismo con cui le une e le altre si annullano nel calcolo degli effetti delle particelle virtuali sulla massa di Higgs.Senza addentrarmi in ulteriori dettagli tecnici,tirando le somme,è possibile giungere all'idea che la scala di energia a cui i partner supersimmetrici della materia ordinaria dovrebbero esistere,non può essere molto più alta della scala della rottura di simmetria dell'interazione debole.Con i futuri esperimenti al CERN,sarà quindi possibile stabilire una volta per sempre, la fondatezza o meno del modello supersimmetrico,ipotizzato già agli inizi degli anni '70. Fausto Intilla - WWW.OLOSCIENCE.COM
11 Aug 2009
1452
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2:37
BY STEVEN SPARKMAN You're watching multisource science news analysis from Newsy. Throughout Easter weekend, rumors flew around the physics world that the long-sought Higgs boson had finally been found. The news came from what appeared to be a leaked internal document from physicists working on the Large Hadron Collider. ITWire has more. “A mystery posting to the comments section of Peter Woit's blog Not Even Wrong has opened up a major can of worms in the particle physics community. The posting displays a 'note,' which in the industry is a memo or comment intended for internal discussion … The information provided from the leaked note suggests that the Higgs was indeed discovered...” It’s only been a few weeks since data from the Tevatron particle accelerator caused a similar flurry of speculation about the Higgs. Similar rumors abound every time some anomalous data is discovered. But Wired reports the physicists in the note think this is the genuine article. “Whether the Higgs is there or not, the paper is real. Physicists with access to the paper say it begins, ‘It is the purpose of this Note to report the first experimental observation at the Large Hadron Collider (LHC) of the Higgs particle.’” That’s certainly an ambitious opening statement. But physicist Jon Butterworth told Channel 4 it’s just too easy for scientists working at the frontier of physics to get carried away with themselves. “Now, what’s happened here is a bunch of people have spent four nights without sleep and have made some plots and got rather overexcited, sent them in an internal note round the collaboration. Which is fine, every one's excited out there, but unfortunately it’s leaked out.” Other scientists are urging similar restraint, saying the paper hasn’t even passed the LHC team’s own validity checks yet, much less been peer reviewed. New Scientist explains why such caution is important with something as complicated as particle physics. “Particle collisions are messy and it takes a lot of careful analysis to separate anomalies from mundane background events. An error somewhere along the way could make a bump appear that isn't really there.” Even while being cautious, it’s still fun to speculate what it would mean if this data were verified. Possible outcomes include a new type of particle, a Higgs that’s somewhat different than predicted, and -- winning $1000 dollars? Physicist Tommaso Dorigo writes on his blog at Science 2.0: “I bet $1000 with whomever has a name and a reputation in particle physics... that the signal is not due to Higgs boson decays. … I am willing to bet that this is NO NEW PARTICLE. Clear enough?” The rumors came as the LHC set a new record for particle collisions per second. With so much data being collected, many experts predict definitive proof of this Higgs by 2012. Follow Newsy_Videos on Twitter Get more multisource video news analysis from Newsy Transcript by Newsy
30 Apr 2011
1348
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0:57
Higgs Bosons unravel the final mystery of the creation puzzle and thus transforming us into gods capable of creating universes.May the good Lord have mercy! This must be the kind of talk that led David Gerrold to say “I’m all in favour of keeping dangerous weapons out of the hands of fools. Let’s start with typewriters.” Is such talk really berserk? Isn’t quasi-established that today’s science fiction is tomorrow’s science?
7 Nov 2012
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4:48
Your weekly look at the most interesting science stories in the ever-expanding universe. For more on the stories this week, you can read about De-Extinction, Voyager 1, and the Higgs Boson. To submit your favorite science stories or intro suggestions, send us an email here: GeekendUpdateescapistmag****
24 Sep 2013
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1:06
Mike playing at a party over the summer
14 Jan 2007
825
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1:58
A mother who cannot face her future. A daughter who cannot escape her past. Lady Elisabeth Kerr is a keeper of secrets. A Highlander by birth and a Lowlander by marriage, she honors the auld ways, even as doubts and fears stir deep within her. Her husband, Lord Donald, has secrets of his own, well hidden from the household, yet whispered among the town gossips. His mother, the dowager Lady Marjory, hides gold beneath her floor and guilt inside her heart. Though her two abiding passions are maintaining her place in society and coddling her grown sons, Marjory’s many regrets, buried in Greyfriars Churchyard, continue to plague her. *******waterbrookmultnomah****/catalog.php?isbn=9781400070015
20 Feb 2010
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5:24
Descripción muy interesante y sencilla de esta partícula.
7 Jul 2012
373
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5:14
The biggest scientific discovery of the 21st century, how CERN created the web, and the triumphant return of Furby!
10 Jul 2012
455
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7:19
producer of south shore records, Nagasaga Films
20 Oct 2008
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0:26
Just want to wish Theresa a very happy birthday and to let her know how amazing she is! She's always there when ever you need to have a catch. Even though she has ditched me a few times! But all is forgiven... You know how I was having so much trouble making you a video. I only had inspiration for this one. Really sorry! I know its crap.. But have an amazing birthday young lady. You deserve it!!! xx
29 Sep 2011
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25:14
Share, support, subscribe Credit to: http://isha(.)sadhguru(.)org DISCLAIMER: This is an educational and motivational video meant only for inspiring the viewers. Viewer's discretion is advised. Video clips used are for illustrative purpose only to make the point in the audio. All copyrights are acknowledged to their rightful owners. Extraordinary Motivation does not claim to own any copyrights. The sole purpose of this video is to inspire, empower and educate the viewers. FAIR-USE COPYRIGHT DISCLAIMER * Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, commenting, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. -This video has no negative impact on the original works (It would actually be positive for them) -This video is mainly for teaching and motivational purposes. -It is positively trans-formative in nature. -I only used bits and pieces of videos to get the point across where necessary. I do not wish to reveal the story or use the 'heart' of any of the content. I respect every content creator and their original work. I also do not wish to use the heart of any piece of work that would perhaps decrease the market value of the original content, if anything I hope to promote the content so that people can reach out and subsequently increase the market value. I make these videos with the intention of educating others in a motivational/inspirational form. I do not own the clips and music we use in most cases. Our understanding is that it is in correlation to Fair Right Use, however given that it is open to interpretation, if any owners of the content clips would like us to remove the video, we have no problem with that and will do so as fast as possible. Please message on YouTube if you have any concerns. THANK YOU
14 Jun 2018
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