中文
相关论文

相关论文: Boosting the Direct CP Measurement of the Higgs-To…

200 篇论文

The study of the Higgs boson's properties is a cornerstone of the LHC and future collider programs. In this paper, we examine the potential to directly probe the Higgs-top interaction strength and CP-structure in the $t\bar t h$ channel…

高能物理 - 唯象学 · 物理学 2022-02-16 Dorival Gonçalves , Jeong Han Kim , Kyoungchul Kong , Yongcheng Wu

Constraining the Higgs boson properties is a cornerstone of the LHC program. We study the potential to directly probe the Higgs-top CP-structure via the $t\bar{t}h$ channel at the LHC with the Higgs boson decaying to a bottom pair and…

高能物理 - 唯象学 · 物理学 2022-10-05 Dorival Goncalves , Kyoungchul Kong , Jeong Han Kim

We explore the direct Higgs-top CP measurement via the $pp\to t\bar{t}h$ channel at the high-luminosity LHC. We show that a combination of machine learning techniques and efficient kinematic reconstruction methods can boost new physics…

高能物理 - 唯象学 · 物理学 2022-05-17 Rahool Kumar Barman , Dorival Gonçalves , Felix Kling

The ATLAS and CMS collaborations recently announced the observation of the associated production of the Higgs boson with a top quark pair ($t\bar tH$) at the LHC. This process depends directly on the the top quark Yukawa coupling and…

高能物理 - 唯象学 · 物理学 2019-02-21 Emanuel Gouveia , Ricardo Gonçalo , António Onofre , Duarte Azevedo

The LHC experiments have analyzed the 7 and 8 TeV LHC data in the main Higgs production and decay modes. Current analyses only loosely constrain an anomalous top-Higgs coupling in a direct way. In order to strongly constrain this coupling,…

高能物理 - 唯象学 · 物理学 2013-09-27 Sanjoy Biswas , Emidio Gabrielli , Fabrizio Margaroli , Barbara Mele

The CP nature of the Higgs coupling to top quarks is addressed in this paper, in single charged lepton final states of $t\bar{t}h$ events produced in proton-proton collisions at the LHC. Pure scalar ($h=H$) and pseudo-scalar ($h=A$) Higgs…

高能物理 - 唯象学 · 物理学 2018-08-29 D. Azevedo , A. Onofre , F. Filthaut , R. Gonçalo

We explore the sensitivity to new physics for the coupling of the Higgs boson ($h$) and top quark ($t$) at high energy scales with the process $pp\to t\bar{t}h$ at the high-luminosity LHC. This process probes the coupling in both the…

高能物理 - 唯象学 · 物理学 2022-01-06 Roshan Mammen Abraham , Dorival Gonçalves , Tao Han , Sze Ching Iris Leung , Han Qin

In the presence of CP violation, the Higgs-top coupling may have both scalar and pseudoscalar components, $\kappa_t$ and ${\tilde \kappa_t}$, which are bounded indirectly but only weakly by the present experimental constraints on the…

高能物理 - 唯象学 · 物理学 2015-06-18 John Ellis , Dae Sung Hwang , Kazuki Sakurai , Michihisa Takeuchi

The top-Higgs coupling plays an important role in particle physics and cosmology. The precision measurements of this coupling can provide an insight to new physics beyond the Standard Model. In this paper, we propose to use Message Passing…

高能物理 - 唯象学 · 物理学 2020-01-08 Jie Ren , Lei Wu , Jin Min Yang

Both the ATLAS and CMS collaborations have reported a Standard Model Higgs-like excess at around $m_h = 125$ GeV. If an SM-like Higgs particle is discovered in this particular mass range, an important additional test of the SM electroweak…

高能物理 - 唯象学 · 物理学 2015-06-05 Matthew J. Dolan , Christoph Englert , Michael Spannowsky

The measurement of Higgs self-coupling is one of the most crucial physics goals at the future colliders. At the LHC, the di-Higgs production is a main way to measure the Higgs trilinear coupling. As a complementary to the di-Higgs…

高能物理 - 唯象学 · 物理学 2015-07-27 Ning Liu , Yanming Zhang , Jinzhong Han , Bingfang Yang

Constraining the Higgs boson properties is a cornerstone of the LHC program and future colliders. In this Snowmass contribution, we study the potential to directly probe the Higgs-top CP-structure via the $t\bar{t}h$ production at the…

The Higgs-top coupling plays a central role in the hierarchy problem and the vacuum stability of the Standard Model (SM). We propose a central-edge asymmetry ($A_{CE}$) to probe the CP violating Higgs-top coupling in dileptonic channel of…

高能物理 - 唯象学 · 物理学 2018-02-14 Jinmian Li , Zong-guo Si , Lei Wu , Jason Yue

The determination of the CP nature of the Higgs coupling to top quarks is addressed in this paper, using $t{\bar t} h$ events produced in $\sqrt{s} = 13$ TeV proton-proton collisions at the LHC. Dileptonic final states are employed, with…

A precise measurement of the Higgs boson couplings to bottom and top quarks is of paramount importance during the upcoming LHC runs. We present a comprehensive analysis for the Higgs production process in association with a…

高能物理 - 唯象学 · 物理学 2016-01-27 Niccolo Moretti , Petar Petrov , Stefano Pozzorini , Michael Spannowsky

We study the prospects of measuring the CP property of the Higgs ($h$) coupling to tau leptons using the vector boson fusion (VBF) production mode at the high-luminosity LHC. Utilizing the previously proposed angle between the planes…

高能物理 - 唯象学 · 物理学 2017-05-26 Tao Han , Satyanarayan Mukhopadhyay , Biswarup Mukhopadhyaya , Yongcheng Wu

This study utilises the Higgs Characterization model to investigate the $CP$ properties of the Higgs coupling to the top quark using the $tH$ and $t\bar{t}H$ generation processes. This is done via simulations of proton-proton collisions…

高能物理 - 唯象学 · 物理学 2019-11-22 Martin Mosny

The quest for new heavy states is a critical component of the LHC physics program. In this letter, we study the search for pseudoscalar bosons produced in association with a $t\bar{t}$ pair. We consider the final state $t\bar{t} A \to…

高能物理 - 唯象学 · 物理学 2016-11-09 Dorival Goncalves , David Lopez-Val

We investigate the sensitivity of top-Higgs coupling by considering the associated vertex as CP phase ($\zeta_t$) dependent through the process $p\, e^- \to \bar t \,h \,\nu_e$ in the future Large Hadron electron collider. In particular the…

高能物理 - 唯象学 · 物理学 2017-05-04 Baradhwaj Coleppa , Mukesh Kumar , Satendra Kumar , Bruce Mellado

We propose a new dihedral angle observable to measure the CP property of the interaction of top quark and Higgs boson in the $t\bar{t}H$ production at the 14~TeV LHC. We consider two decay modes of the Higgs boson, $H\to b\bar{b}$ and $H\to…

高能物理 - 唯象学 · 物理学 2020-09-01 Qing-Hong Cao , Ke-Pan Xie , Hao Zhang , Rui Zhang
‹ 上一页 1 2 3 10 下一页 ›