Comments on: Testing theory… http://www.quantumdiaries.org/2012/08/26/testing-theory/ Thoughts on work and life from particle physicists from around the world. Wed, 22 May 2013 15:29:27 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Anna Phan http://www.quantumdiaries.org/2012/08/26/testing-theory/#comment-85024 Anna Phan Wed, 29 Aug 2012 07:55:15 +0000 http://www.quantumdiaries.org/?p=24449#comment-85024 Dear Alexey,

Yes and no, it’s hard to tell from the plot, but if you look at Slide 23 of Phillip Urquijo’s presentation where I took the plot from, he points out that the error on the average inclusive and exclusive measurements are ~6% and ~10% respectively, and while the error on the leptonic measurement from Belle is ~14%, which is larger than both, the error on the average is ~10%…

Cheers,
Anna

]]> By: Alexey http://www.quantumdiaries.org/2012/08/26/testing-theory/#comment-84988 Alexey Tue, 28 Aug 2012 19:47:16 +0000 http://www.quantumdiaries.org/?p=24449#comment-84988 > And interestingly… the Vub measurement from B−→τ−ν⎯⎯τ is in agreement with both methods…

It’s in agreement with both only because your uncertainties are large compared to either one, right?

]]> By: Anna Phan http://www.quantumdiaries.org/2012/08/26/testing-theory/#comment-84898 Anna Phan Mon, 27 Aug 2012 07:26:47 +0000 http://www.quantumdiaries.org/?p=24449#comment-84898 Dear Lamont,

Thanks for the question. The constraint really depends on the type of new physics model under scrutiny. An example can be found in the additional slides from Youngmin Yook’s presentation, specifically on Slide 44 where there’s an exclusion plot on the bottom right for the 2HDM (type II).

Cheers,
Anna

]]> By: Lamont Granquist http://www.quantumdiaries.org/2012/08/26/testing-theory/#comment-84871 Lamont Granquist Sun, 26 Aug 2012 17:57:38 +0000 http://www.quantumdiaries.org/?p=24449#comment-84871 “found in Ref. [17], we obtain fB |Vub | = [7.4 ± 0.8(stat) ±
0.5(syst)] × 10−4 GeV. Our result provides stringent
constraints on various models including charged Higgs
bosons.”

any hint as to how stringent those constraints are?

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