Comments on: What next for the Higgs? http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/ Thoughts on work and life from particle physicists from around the world. Thu, 23 May 2013 16:10:20 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Buy Made from Us! http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-79463 Buy Made from Us! Sun, 22 Jul 2012 05:44:24 +0000 http://www.quantumdiaries.org/?p=22737#comment-79463 Awesome things here. I am very happy to look your post. Thank you a lot and I’m taking a look ahead to contact you. Will you kindly drop me a mail?

]]> By: Scientists to announce discovery of ‘god particle’ on July 4 | The Bunsen Burner http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-78403 Scientists to announce discovery of ‘god particle’ on July 4 | The Bunsen Burner Mon, 16 Jul 2012 19:54:46 +0000 http://www.quantumdiaries.org/?p=22737#comment-78403 [...] in the ATLAS experiments, physicists are particularly interested in the width of the particle. Randle-Conde writes, “We usually require a 5 sigma observation to declare a discovery, and there are two ways [...]

]]> By: Have scientists discovered the Higgs Boson? | The Bunsen Burner http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-74479 Have scientists discovered the Higgs Boson? | The Bunsen Burner Sun, 01 Jul 2012 23:09:24 +0000 http://www.quantumdiaries.org/?p=22737#comment-74479 [...] in the ATLAS experiments, physicists are particularly interested in the width of the particle. Randle-Conde writes, “We usually require a 5 sigma observation to declare a discovery, and there are two ways [...]

]]> By: [blog post] What next for the Higgs? « aidan@cern http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72563 [blog post] What next for the Higgs? « aidan@cern Tue, 12 Jun 2012 14:54:25 +0000 http://www.quantumdiaries.org/?p=22737#comment-72563 [...] Keep reading… Share this:TwitterFacebookLike this:LikeBe the first to like this post. [...]

]]> By: Aidan Randle-Conde http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72190 Aidan Randle-Conde Sun, 10 Jun 2012 13:23:16 +0000 http://www.quantumdiaries.org/?p=22737#comment-72190 Hey Xezlec, you’re right, the ILC is just one of the possible contenders, and CLIC is still going from strength to strength. We get in to the habit of saying “ILC” to mean “the next accelerator”, a bad habit to get into! Thanks for pointing this out.

I don’t know the details about the energy of the TLC accelerator (it’s just something I haven’t had time to look into yet) but I do know that different accelerators have different engineering constraints. For the LHC we just whack together protons at high energy and as long as the beams are the same energy it’s all okay. For PEP-II and KEK at the B-factories they needed to make asymmetric accelerators so that they could study time dependent effects. This required knowing the mass of the B mesons and Y mesons very precisely so that the resonances could be used to produce the B mesons properly. For the ILC I would imagine that the energy constraints would come from phase space of Higgstrahlung and the detector efficiency for leptons coming from the tag Z. I’ll speak to some more knowledgeable people and if I learn enough about it I’ll write a blog post. From what I’ve heard the answer is not a short one!

]]> By: Aidan Randle-Conde http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72189 Aidan Randle-Conde Sun, 10 Jun 2012 13:17:01 +0000 http://www.quantumdiaries.org/?p=22737#comment-72189 Hey Clara, that’s an interesting point! If we see no Higgs boson then there must be something else out there that gives the massive bosons their mass. That scenario would be fascinating and lead to all kinds of new discoveries of physics beyond the Standard Model, our dream scenario! Unfortunately it may be difficult to justify further funding at that point. Many people think that the LHC was built to find the Higgs boson (this is true, it is one of the reasons) and they may conclude that not finding the Higgs bosons is a failure of the LHC (not at all true!) It’ll take some clever PR to move physics forward if this is the case, and if you look back at the statements physicists have made to the press, you’ll see that this process began years ago- we’re always hedging our bets and pointing out that a no Higgs boson scenario is exciting. The press don’t usually print this story (it’s probably too long for a short news piece) which can be a little frustrating. Anyway, that’s an aside. Higgs boson or no Higgs boson there’s a lot of fascinating physics to keep us busy for the next couple of decades. The Higgs boson would give us a roadmap for discovery, and a lack of Higgs boson would leave us finding our own path.

]]> By: gunn http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72155 gunn Sun, 10 Jun 2012 09:24:44 +0000 http://www.quantumdiaries.org/?p=22737#comment-72155 You shall not find any higgses because all physics event are interpreted by well-known elementary particles — leptons, quarks, and gauge bosons:

http://www.ptep-online.com/index_files/books_files/quznetsov2011.pdf

]]> By: Xezlec http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72113 Xezlec Sun, 10 Jun 2012 03:38:23 +0000 http://www.quantumdiaries.org/?p=22737#comment-72113 The caption of the picture refers to ILC as “the” next collider for Higgs physics. Does that mean CLIC is no longer being considered for that role? They’re competing designs, right?

Also, based on your opening paragraph, to what extent will the energy level of the linear collider be “tuned” specifically to produce Higgses? Is there a reason other than cost not to just make the energy as high as possible?

]]> By: Clara http://www.quantumdiaries.org/2012/06/09/what-next-for-the-higgs/#comment-72055 Clara Sat, 09 Jun 2012 19:40:16 +0000 http://www.quantumdiaries.org/?p=22737#comment-72055 The last sentence begs a question: If a Higgs is NOT discovered, will the next couple of decades then be a dark age for particle physics?

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