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相关论文: Dilepton production in the SMEFT at $\mathcal O(1/…

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The effective field theory (EFT) for dark matter (DM) has been widely used to investigate dark matter detection in both theoretical prediction and experimental analysis. To form a complete basis of effective operators for Dirac DM EFT at…

高能物理 - 唯象学 · 物理学 2019-08-16 Tong Li , Yi Liao

We study the potential of future Parity-Violating Electron Scattering (PVES) data to probe the parameter space of the Standard Model Effective Field Theory (SMEFT). We contrast the constraints derived from Drell-Yan data taken at the Large…

高能物理 - 唯象学 · 物理学 2021-07-14 Radja Boughezal , Frank Petriello , Daniel Wiegand

Some yet unknown dynamics is expected to be at work behind the flavor puzzles of the Standard Model. Speculations exist that this may manifest itself in significant strength at the terascale. One consequence may be lepton flavor violation…

高能物理 - 唯象学 · 物理学 2015-06-04 Dilip Kumar Ghosh , Probir Roy , Sourov Roy

We calculate the full set of next-to-leading order (NLO) corrections to $h\to b\bar{b}$ decay in the dimension-6 Standard Model Effective Field Theory (SMEFT). Our calculation forms the basis for precision studies of this decay mode in…

高能物理 - 唯象学 · 物理学 2019-10-02 Jonathan M. Cullen , Benjamin D. Pecjak , Darren J. Scott

We present a global interpretation of Higgs, diboson, and top quark production and decay measurements from the LHC in the framework of the Standard Model Effective Field Theory (SMEFT) at dimension six. We constrain simultaneously 36…

We calculate the $\mathcal{O}(\alpha_s)$ QCD corrections to the inclusive $h\to b\bar b$ decay rate in the dimension-6 Standard Model Effective Field Theory (SMEFT). The QCD corrections multiplying the dimension-6 Wilson coefficients which…

高能物理 - 唯象学 · 物理学 2016-11-09 Rhorry Gauld , Benjamin D. Pecjak , Darren J. Scott

In this paper we systematically consider the baryon ($B$) and lepton ($L$) number violating dinucleon to dilepton decays ($pp\to \ell^+\ell^{\prime+}, pn\to \ell^+\bar\nu^\prime, nn\to \bar\nu\bar\nu^\prime$) with $\Delta B=\Delta L=-2$ in…

高能物理 - 唯象学 · 物理学 2021-06-10 Xiao-Gang He , Xiao-Dong Ma

Heavy neutral gauge bosons arise in many motivated models of Beyond the Standard Model Physics. Experimental searches require that such gauge bosons are above the TeV scale in most models which means that the tools of effective field…

高能物理 - 唯象学 · 物理学 2024-07-25 Sally Dawson , Matthew Forslund , Marvin Schnubel

We analyze the constraints obtainable from present data using the Standard Model Effective Field Theory (SMEFT) on extensions of the Standard Model with additional electroweak singlet or triplet scalar fields. We compare results obtained…

高能物理 - 唯象学 · 物理学 2023-04-14 John Ellis , Ken Mimasu , Francesca Zampedri

The Standard Model Effective Field Theory (SMEFT) provides a powerful, model-independent framework to explore deviations from the Standard Model (SM) by parametrising potential new physics through higher-dimensional operators. This thesis…

高能物理 - 唯象学 · 物理学 2026-02-06 Álvaro Díaz-Carmona

We revisit the effective field theory of the standard model that is extended with sterile neutrinos, $N$. We examine the basis of complete and independent effective operators involving $N$ up to mass dimension seven (dim-7). By employing…

高能物理 - 唯象学 · 物理学 2017-07-19 Yi Liao , Xiao-Dong Ma

Lorentz invariant quantum field theories (QFTs) with fermions in four spacetime dimensions (4D) have a $\mathbb{Z}_4$ symmetry provided there exists a basis of operators in the QFT where all operators have even operator dimension, $d$,…

高能物理 - 理论 · 物理学 2025-02-04 Christopher W. Murphy

The first results on next-to-leading order QCD corrections to graviton-induced processes in hadron collisions in models of TeV-scale gravity are presented focusing on the case of dilepton pair production in \bar p p and pp collisions.…

高能物理 - 唯象学 · 物理学 2010-04-05 Prakash Mathews , V. Ravindran , K. Sridhar , W. L. van Neerven

We propose the ``naive" $T$-odd Collins-Soper moments in the Drell-Yan process as probes of previously unexplored directions in the Standard Model Effective Field Theory (SMEFT) parameter space. We show that the moments $A_6$ and $A_7$ in…

高能物理 - 唯象学 · 物理学 2026-04-02 Frank Petriello , Kaan Şimşek

We formalize energy-scaling arguments in the Standard Model Effective Field Theory (SMEFT) to estimate effects of operators up to dimension ten. Introducing a classification based on the number of external legs and an energy-counting…

高能物理 - 唯象学 · 物理学 2025-07-28 Benoît Assi , Adam Martin

We study the implications of the recent measurements of $R_K$ and $R_{K^*}$ by the LHCb collaboration. We do that by adopting a model-independent approach based on the Standard Model Effective Field Theory (SMEFT), in which the dominant new…

高能物理 - 唯象学 · 物理学 2017-08-30 Alejandro Celis , Javier Fuentes-Martin , Avelino Vicente , Javier Virto

We obtain the complete and independent bases of effective operators at mass dimension 5, 6, 7, 8, 9 in both standard model effective field theory with light sterile right-handed neutrinos ($\nu$SMEFT) and low energy effective field theory…

高能物理 - 唯象学 · 物理学 2021-11-24 Hao-Lin Li , Zhe Ren , Ming-Lei Xiao , Jiang-Hao Yu , Yu-Hui Zheng

We present the first parton-level study of anomalous effects in triboson production in both fully and semi-leptonic channels in proton-proton collisions at 13 TeV at the Large Hadron Collider (LHC). The sensitivity to anomalies induced by a…

We investigate the impact of higher-dimensional operators on low-scale leptogenesis (LG) via oscillations of right-handed neutrinos within the neutrino-extended Standard Model Effective Field Theory ($\nu$SMEFT) and discuss the connection…

高能物理 - 唯象学 · 物理学 2025-10-30 Kaori Fuyuto , Julia Harz , Sascha Weber

We expose a potential flaw in standard treatments of weak decay amplitudes, including that of epsilon'/epsilon. We show that (contrary to conventional wisdom) dimension-eight operators do contribute to weak amplitudes, at order G_F alpha_s…

高能物理 - 唯象学 · 物理学 2014-11-17 Vincenzo Cirigliano , John F. Donoghue , Eugene Golowich