TTP13-047 FIESTA 3: cluster-parallelizable multiloop numerical calculations in physical regions
Alexander Smirnov
Comput.Phys.Commun. 185 2090-2100 2014
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TTP13-046 Evaluating single-scale and/or non-planar diagrams by differential equations
Johannes M. Henn, Alexander V. Smirnov, Vladimir A. Smirnov
JHEP 1403 088 2014
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TTP13-045 Generalised Geometrical CP Violation in a T' Lepton Flavour Model
Ivan Girardi, Aurora Meroni, Serguey T. Petcov, Martin Spinrath
JHEP 1402 050 2014
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TTP13-044 Towards QCD running in 5 loops: quark mass anomalous dimension

TTP13-044 Towards QCD running in 5 loops: quark mass anomalous dimension

We report first results of an ongoing project devoted to the analytical calculation of the QCD $\beta$-function and the quark mass anomalous dimension at the five loop level.

 P.A. Baikov, K. G. Chetyrkin and J. H. K\“uhn PoS RADCOR2013 056 2014 PDF PostScript arXiv
TTP13-043 Higgs boson pair production at the LHC: top-quark mass effects at next-to-leading order
Jonathan Grigo, Jens Hoff, Kirill Melnikov, Matthias Steinhauser
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TTP13-042 Towards analytic (g-2)_mu at four loops
Matthias Steinhauser
Int.J.Mod.Phys.Conf.Ser. 35 1460417 2014
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TTP13-041 $B_s \to \mu^+ \mu^-$ in the SM and $\bar{B}\to X_s \gamma$ in the 2HDM at NNLO in QCD
Thomas Hermann
PDF PostScript arXiv
TTP13-040 Beta-function for the Higgs self-interaction in the Standard Model at three-loop level
M. F. Zoller
Pos EPS-HEP2013 322 2013
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TTP13-039 Implications of an R-Scan for Charm Physics

TTP13-039 Implications of an R-Scan for Charm Physics

The impact of improved measurements of the cross section for electron-positron annihilation into hadrons in the charm threshold region is discussed. Two aspects are studied in detail: i.)~A significant reduction of the experimental error of the electronic width of the narrow resonances $J/\psi$ and $\psi'$ and of the continuum cross section from the open charm threshold up to 4.6~GeV will lead to a correspondingly improved determination of the charmed quark mass. ii)~A high luminosity measurement with 24~pb${}^{-1}$ at three points and with a spacing of 2~MeV around $\sqrt{s}=3511\,{\rm MeV}$ may allow to observe the direct, resonant production of $\chi_{c1}$.

 Kühn, Johann H. PDF PostScript
TTP13-038 SU(3)$_F$ in nonleptonic charm decays
Gudrun Hiller, Martin Jung, Stefan Schacht
PoS EPS-HEP2013 371 2013
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TTP13-037 Sharper predictions for D-&gt;PP CP-Asymmetries
Gudrun Hiller, Martin Jung, Stefan Schacht
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TTP13-036 Progress in analytical calculations for the anomalous magnetic moment of the muon
P.A. Baikov, A. Maier, P .Marquard
Acta Phys.Polon. B44 2267-2273 2013
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TTP13-035 GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets
Stefan Antusch, Stephen F. King, Martin Spinrath
Phys.Rev. D89 055027 2014
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TTP13-034 Three-loop QCD Corrections to $B_s \to \mu^+ \mu^-$
Thomas Hermann, Mikolaj Misiak, Matthias Steinhauser
JHEP 1312 097 2013
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TTP13-033 $B_{s,d} \to \ell^+ \ell^-$~ in the Standard Model
Christoph Bobeth, Martin Gorbahn, Thomas Hermann, Mikolaj Misiak, Emmanuel Stamou, Matthias Steinhauser
Phys.Rev.Lett. 112 101801 2014
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TTP13-032 Anomalous magnetic moment with heavy virtual leptons
Alexander Kurz, Tao Liu, Peter Marquard, Matthias Steinhauser
Nucl.Phys. B879 (2014) 1-18 B879 1-18 2014
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TTP13-031 Code Optimization in FORM
J. Kuipers, T. Ueda and J.A.M. Vermaseren
PDF PostScript arXiv
TTP13-030 Vector-boson pair production at the LHC: Electroweak corrections in HERWIG++
S. Gieseke, T. Kasprzik, J.H. KÃ¼hn,
Pos -EPS-HEP2013 226 2013
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TTP13-029 MSSM Higgs Self-Couplings: Two-Loop O(a_s a_t) Corrections
Mathias Brucherseifer, Ryan Gavin, Michael Spira
Phys.Rev. D90 11, 117701 2014
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TTP13-028 Colour octet potential to three loops
Chihaya Anzai, Mario Prausa, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser
Phys.Rev. D88 5, 054030 2013
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TTP13-027 MT: a Mathematica package to compute convolutions
Maik Höschele, Jens Hoff, Alexey Pak, Matthias Steinhauser, Takahiro Ueda
Comput.Phys.Commun. 185 528-539 2014
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TTP13-026 Corrections of Order alpha alpha_s to W Boson Decays
Dominik Kara
Nucl.Phys. B877 683-718 2013
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TTP13-025 The QED vacuum polarization function at four loops and the anomalous magnetic moment at five loops
P. Baikov, A. Maier and P. Marquard
Nucl.Phys. B877 647-661 2013
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TTP13-024 SLAM, a Mathematica interface for SUSY spectrum generators
Peter Marquard, Nikolai Zerf
Comput.Phys.Commun. 185 1153-1171 2014
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TTP13-023 Two-loop static potential in N=4 supersymmetric Yang-Mills theory
Mario Prausa and Matthias Steinhauser
Phys.Rev. D88 025029 2013
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TTP13-022 Higgs boson production in the SM and MSSM to NNLO and beyond
Matthias Steinhauser
EPJ Web Conf. 60 12010 2013
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TTP13-021 Analytic results for planar three-loop four-point integrals from a Knizhnik-Zamolodchikov equation
J. Henn, A.V. Smirnov, V.A. Smirnov
JHEP 1307 128 2013
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TTP13-020 Simulation of electron-positron annihilation into hadrons with the event generator PHOKHARA
H.Czyz, M. Gunia, J.H. KÃ¼hn
JHEP 1308 110 2013
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TTP13-019 Vector-boson pair production at the LHC to O(alpha3) accuracy
Anastasiya Bierweiler, Tobias Kasprzik, Johann H. KÃÂ¼hn
JHEP 1312 071 2013
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TTP13-018 A framework for baryonic R-parity violation in grand unified theories
Luca Di Luzio, Marco Nardecchia, Andrea Romanino
Phys. Rev. D 88 115008 2013
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TTP13-017 Precise Charm and Bottom Masses
Kühn, J. H.
Presented at the Workshop {\em Constraining the hadronic contributions to the muon's anomalous magnetic moment g-2 and alpha_em(M_Z), Trento, April 10-12, 2013
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TTP13-016 Precise Heavy Quark Masses
K&uuml;hn, Johann H.
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TTP13-015 Weak Interactions in Top-Quark Pair Production at Hadron Colliders: An Update

TTP13-015 Weak Interactions in Top-Quark Pair Production at Hadron Colliders: An Update

Weak corrections for top-quark pair production at hadron colliders are revisited. Predictions for collider energies of 8 TeV, adopted to the present LHC run, and for 14 TeV, presumably relevant for the next round of LHC experiments, are presented. Kinematic regions with large momentum transfer are identified, where the corrections become large and may lead to strong distortions of differential distributions, thus mimicking anomalous top quark couplings. As a complementary case we investigate the threshold region, corresponding to configurations with small relative velocity between top and antitop quark, which is particularly sensitive to the top-quark Yukawa coupling. We demonstrate, that nontrivial upper limits on this coupling are well within reach of ongoing experiments.

 J.H. Kühn, A. Scharf and P. Uwer PDF PostScript arXiv
TTP13-014 Status of the two-Higgs-doublet model of type II
Otto Eberhardt, Ulrich Nierste, Martin Wiebusch
JHEP 1307 118 2013
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TTP13-013 On the Higgs boson pair production at the LHC
Jonathan Grigo, Jens Hoff, Kirill Melnikov, Matthias Steinhauser
Nucl.Phys. B875 1-17 2013
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TTP13-012 Resummation of non-global logarithms at finite Nc

TTP13-012 Resummation of non-global logarithms at finite Nc

In the context of inter-jet energy flow, we present the first quantitative result of the resummation of non-global logarithms at finite N_c. This is achieved by refining Weigert's approach in which the problem is reduced to the simulation of associated Langevin dynamics in the space of Wilson lines. We find that, in e+e- annihilation, the exact result is rather close to the result previously obtained in the large-N_c mean field approximation. However, we observe enormous event-by-event fluctuations in the Langevin process which may have significant consequences in hadron collisions.

 Yoshitaka Hatta and Takahiro Ueda Nucl.Phys. B874 808-820 2013 PDF PostScript arXiv
TTP13-011 Flavour and CP violation
Ulrich Nierste
J.Phys.Conf.Ser. 447 012017 2013
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TTP13-010 Unification scale vs. electroweak-triplet mass in the SU(5) + 24_F model at three loops
Luca Di Luzio, Luminita Mihaila
Phys.Rev. D87 115025 2013
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TTP13-009 Dimension 7 operators in the b &#8594; s transition

TTP13-009 Dimension 7 operators in the b &#8594; s transition

We extend the low-energy effective field theory relevant for b to s transitions up to operators of mass-dimension 7 and compute the associated anomalous-dimension matrix. We then compare our findings to the known results for dimension 6 operators and derive a solution for the renormalization group equations involving operators of dimension 7. We finally apply our analysis to a particularly simple case where the Standard Model is extended by an electroweak-magnetic operator and consider limits on this scenario from the decays Bs to mu+ mu- and B to K nu nubar.

 G. Chalons, F. Domingo Phys.Rev. D89 034004 2014 PDF PostScript arXiv

TTP13-008 beta-function for the Higgs self-interaction in the Standard Model at three-loop level

TTP13-008 beta-function for the Higgs self-interaction in the Standard Model at three-loop level

We analytically compute the QCD, electroweak, Higgs and third generation Yukawa contributions to the $\beta$-function for the Higgs self-coupling as well as for the Higgs mass parameter in the unbroken phase of the Standard Model at three-loop level.

 K. G. Chetyrkin and M. F. Zoller JHEP 1304 091 2013 PDF PostScript arXiv Programs and Data
TTP13-007 Light color octet scalars in the minimal SO(10) grand unification
Stefano Bertolini, Luca Di Luzio, Michal Malinsky
Phys.Rev.D 87 085020 2013
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TTP13-006 On the $\mathcal O(\alpha_s^2)$ corrections to $b \rightarrow X_u e bar{\nu}$ inclusive decays

TTP13-006 On the $\mathcal O(\alpha_s^2)$ corrections to $b \rightarrow X_u e bar{\nu}$ inclusive decays

We present $O(\alpha_s^2)$ QCD corrections to the fully-differential decay rate of a $b$-quark into inclusive semileptonic charmless final states. Our calculation provides genuine two-loop QCD corrections, beyond the Brodsky-Lepage-Mackenzie (BLM) approximation, to any infra-red safe partonic observable that can be probed in $b \to X_u e \bar \nu$ decays. Kinematic cuts that closely match those used in experiments can be fully accounted for. To illustrate these points, we compute the non-BLM corrections to moments of the hadronic invariant mass and the hadronic energy with cuts on the lepton energy and the hadronic invariant mass. Our results remove one of the sources of theoretical uncertainty that affect the extraction of the CKM matrix element $|V_{ub}|$ from charmless inclusive B-decays.

 Mathias Brucherseifer, Fabrizio Caola, Kirill Melnikov Phys.Lett. B721 107-110 2013 PDF PostScript arXiv

TTP13-005 $\mathcal O(\alpha_s^2)$ corrections to fully-differential top quark decays

TTP13-005 $\mathcal O(\alpha_s^2)$ corrections to fully-differential top quark decays

We describe a calculation of the fully-differential decay rate of a top quark to a massless $b$-quark and a lepton pair at next-to-next-to-leading order in perturbative QCD. Technical details of the calculation are discussed and selected results for kinematic distributions are shown.

 Mathias Brucherseifer, Fabrizio Caola, Kirill Melnikov JHEP 1304 059 2013 PDF PostScript arXiv
TTP13-004 Higgs decay to goldstini and its observability at the LHC
Tao Liu, Lin Wang, Jin Min Yang
Phys.Lett. B 726 228-233 2013
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TTP13-003 OPE of the pseudoscalar gluonium correlator in massless QCD to three-loop order

TTP13-003 OPE of the pseudoscalar gluonium correlator in massless QCD to three-loop order

In this paper analytical results are presented for higher order corrections to coefficient functions of the operator product expansion (OPE) for the correlator of two pseudoscalar gluonium operators \tilde{O}_1=G^{\mu \nu}\tilde{G}_{\mu \nu}. The Wilson coefficient in front of the scalar gluon condensate operator O_1=-1/4 G^{\mu \nu}G_{\mu \nu} is given at three-loop accuracy. The leading coefficient C_0 in front of the unity operator O_0=1 has been calculated up to three-loop order some time ago but has been checked independently in this work. It is interesting to see that the coefficient C_1 in the pseudoscalar case is finite, whereas contact terms appear in C_0 in this case and in both coefficients C_0 and C_1 in the cases of the scalar gluonium correlator and the energy momentum tensor correlator. For the corresponding Renormalization Group invariant Wilson coefficients which are also constructed the results are partially extended to four-loop accuracy. All results are given in the MSbar-scheme at zero temperature.

 M. F. Zoller JHEP 1307 040 2013 PDF PostScript arXiv Programs and Data
TTP13-002 Four-loop corrections with two closed fermion loops to fermion self energies and the lepton anomalous magnetic moment
Roman Lee, Peter Marquard, Alexander V. Smirnov, Vladimir A. Smirnov, Matthias Steinhauser
JHEP 1303 162 2013
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TTP13-001 Precision Calculations in Supersymmetric Theories
Luminita Mihaila
Adv.High Energy Phys. 2013 607807 2013
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