2,061 research outputs found
Kebby Wilson and Danny Nelson
No full textWinning awards in a Karate meet in Salt Lake City are Kebbie Wilson and Danny Wilson
wilson-eft/wilson: v1.7
No full text<p>This release only changes a technicality: it makes instances of the <code>Wilson</code> class hashable (with a unique, random hash) which is useful for caching in packages depedning on <code>wilson</code>. Thanks to @peterstangl for implementing this.</p>
<p>The minimum <code>wcxf</code> version required for this to work properly is v1.6. Please make sure to upgrade that package as well (it is done automatically if you use <code>pip</code>).</p>
wilson-eft/wilson: v2.0
No full textThis major release of wilson brings to main new features: one-loop SMEFT-WET matching and the integration of the wcxf-python package.
New feature: one-loop SMEFT-WET matching
Thanks to the full calculation of the one-loop matching of SMEFT onto WET published in arXiv:1908.05295, it was possible to implement this one-loop matching in wilson (#35).
Using an automated conversion of the Mathematica notebook provided by the authors reduces the risk of typing mistakes and also allowed a powerful cross-check, namely that the tree-level matching in the previous version agrees with the new result when switching of one-loop contributions. This check succeeded after correcting a mistake in the tree-level matching paper (9ac1631c3d138c90714a240f84036f9e1861cb54) and is now included as a unit test.
Note that the current implementation of the one-loop matching is fairly slow, of the order of 0.5 seconds. Therefore, one-loop matching contributions are not switched on by default, but can be included by setting the option smeft_matching_order to 1 (default: 0, i.e. tree). For instance, setting one-loop matching as default for a session is achieved with
import wilson
wilson.Wilson.set_default_option('smeft_matching_order', 1)
API change: WCxf
The wcxf-python package provides a low-level API to interact with WCxf files or data structures and predates wilson. When wilson entered the stage, it provided the translators and matchors for this package. This generated a circular dependency that became harder and harder to maintain. Thefore we have decided to merge the wcxf-python package into wilson itself. For this 2.0 release, wcxf now simply lives as an unmodified submodule of wilson and all existing code should continue working by replacing import wcxf with from wilson import wcxf. Also the command line scripts should work unchanged. The wcxf PyPI package itself will be turned into an empty wrapper and is no longer required.
New SMEFT basis
A SMEFT basis that is a hybrid between the "Higgs basis" and the "Warsaw up" basis has been added, along with the required translators.
Bugs fixed
The error in the SMEFT-WET tree-level matching paper mentioned above was fixed (9ac1631c3d138c90714a240f84036f9e1861cb54)
The WET operators VeeLL and VnunuLL were missing symmetry factors in the SMEFT-WET matching (8e892e659187d5595cf7fded145f1e3faaa5ec2b)
The down-type dipole operators (dG, dgamma) were not correctly rotated to the mass basis in the SMEFT-WET matching (412cfa0494058f6fdae45883fcfccdc05c947b65)
The match_run method was unnecessarily slow when only translation was necessary (d147e309d6ec5c4d43cfda3c0e797d3375111478
wilson-eft/wilson: v1.4
No full textNew configuration options
<p>Using the new configuation interface of the <code>Wilson</code> class introduced in <a href="https://github.com/wilson-eft/wilson/releases/tag/v1.2">v1.2</a>, several new options have been added:</p>
<ul>
<li><code>qed_order</code> (default: 1) can be set to 0 to switch off QED contributions to WET running</li>
<li><code>qcd_order</code> (default: 1) can be set to 0 to switch off QCD contributions to WET running</li>
<li><code>mb_matchingscale</code> (default: 4.2) can be set to change the matching threshold between WET and WET-4</li>
<li><code>mc_matchingscale</code> (default: 1.3) can be set to change the matching threshold between WET-4 and WET-3</li>
<li><code>smeft_matchingscale</code> (default: 91.1876) can be set to change the matching threshold between SMEFT and WET</li>
</ul>
Other improvements
<ul>
<li>Several operators added to the WCxf flavio bases have been taken into account in the translators.</li>
</ul>
<p>The new release requires <code>wcxf-python</code> v1.4.6.</p>
wilson-eft/wilson: v1.5
No full text<p>Improvements in this release:</p>
<ul>
<li>The new option of translating only Wilson coefficients in specific sectors <a href="https://github.com/wcxf/wcxf-python/releases/tag/v1.5">added to wcxf-python</a> is now supported by the JMS→flavio basis translator. This can speed up translations between these bases (heavily used by <a href="https://github.com/flav-io/flavio/">flavio</a> and <a href="https://github.com/smelli/smelli">smelli</a>) by more than an order of magnitude.</li>
<li>The matching from SMEFT to WET is now significantly faster thanks to some refactoring.</li>
<li>The <code>Wilson</code> class has a new method <code>get_smpar</code> that allows to check the accuracy of the automatic, iterative determination of SM parameters required for the SMEFT running. The output of this method should agree with the dictionary <code>wilson.run.smeft.smpar.p</code> if successful.</li>
<li>In the <code>util.qcd</code> module (mostly a wrapper around <code>rundec</code>), the loop order is now treated consistently in α<sub>s</sub> in the calculation of quark masses. Several unit tests have been added to ensure numerical agreement with <code>rundec</code>. Thanks to @Element-126 for implementing this!</li>
<li>More useful error message in running of α<sub>s</sub>, added by @peterstangl </li>
</ul>
Danny Fisher, 1975
No full textThis black and white photograph features a headshot of Danny Fisher, wearing a gray square patterned suit, a striped necktie and a white shirt.https://scholarsjunction.msstate.edu/mss-wilson-minor-photographs/1151/thumbnail.jp
Song for Susan
No full textThis is from a Guitar Styles Concert organized by David Holt and takes place in Kitteredge Theater on the Warren Wilson College campus. Danny Johnson plays guitar with Mack Snodderly accompanying. Danny is from Pisgah Forest, North Carolina
Faded Love
No full textThis is from a Guitar Styles Concert organized by David Holt and takes place in Kitteredge Theater on the Warren Wilson College campus. Danny Johnson plays guitar with Mack Snodderly accompanying. Danny is from Pisgah Forest, North Carolina
Black and White Rag
No full textThis is from a Guitar Styles Concert organized by David Holt and takes place in Kitteredge Theater on the Warren Wilson College campus. Danny Johnson plays guitar with Mack Snodderly accompanying. Danny is from Pisgah Forest, North Carolina
Beaumont Rag
No full textThis is from a Guitar Styles Concert organized by David Holt and takes place in Kitteredge Theater on the Warren Wilson College campus. Danny Johnson plays guitar with Mack Snodderly accompanying. Danny is from Pisgah Forest, North Carolina
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