Higgs mass predictions of public NMSSM spectrum generators

详细信息    查看全文

• 作者：Florian Staub^a ; ^{florian.staub@cern.ch" class="auth_mail" title="E-mail the corresponding author} ; Peter Athron^b ; ^{peter.athron@coepp.org.au" class="auth_mail" title="E-mail the corresponding author} ; Ulrich Ellwanger^c ; ^d ; ^{Ulrich.Ellwanger@th.u-psud.fr" class="auth_mail" title="E-mail the corresponding author} ; Ramona Grö ; ber^e ; ^{groeber@roma3.infn.it" class="auth_mail" title="E-mail the corresponding author} ; Margarete Mü ; hlleitner^f ; ^{margarete.muehlleitner@kit.edu" class="auth_mail" title="E-mail the corresponding author} ; Pietro Slavich^g ; ^h ; ^{slavich@lpthe.jussieu.fr" class="auth_mail" title="E-mail the corresponding author} ; Alexander Voigtⁱ ; ^{alexander.voigt@desy.de" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Spectrum generators ; NMSSM ; Higgs mass
• 刊名：Computer Physics Communications
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：202
• 期：Complete
• 页码：113-130
• 全文大小：533 K

文摘

The publicly available spectrum generators for the NMSSM often lead to different predictions for the mass of the standard model-like Higgs boson, even though they all implement two-loop computations in the class="mathmlsrc">title="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0010465516000242&_mathId=si147.gif&_user=111111111&_pii=S0010465516000242&_rdoc=1&_issn=00104655&md5=0dbf206a046dba6b73484c169f1e31c3">class="imgLazyJSB inlineImage" height="14" width="22" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0010465516000242-si147.gif">class="mathContainer hidden">class="mathCode">$\overline{\text{DR}}$ renormalization scheme. Depending on the parameter point, the differences can exceed 5 GeV, and even reach 8 GeV for moderate superparticle masses of up to 2 TeV. It is shown here that these differences can be traced back to the calculation of the running standard model parameters entering all calculations, to the approximations used in the two-loop corrections included in the different codes, and to different choices for the renormalization conditions and scales. In particular, the importance of the calculation of the top Yukawa coupling is pointed out.