Built on

C. Englert, P. Galler, A. Pilkington, and M. Spannowsky, “Approaching robust EFT limits for CP-violation in the Higgs sector,” Phys. Rev. D
Original
1901
Earlier work this paper cites.
J. Ren, L. Wu, and J. M. Yang, “Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC,” Phys. Lett. B
Original
1901
Earlier work this paper cites.
M. Cepeda et al
Original
1902
Earlier work this paper cites.
J. Brehmer, K. Cranmer, I. Espejo, F. Kling, G. Louppe, and J. Pavez, “Effective LHC measurements with matrix elements and machine learning,” J. Phys. Conf. Ser
Original
1906
Earlier work this paper cites.
J. Brehmer, F. Kling, I. Espejo, and K. Cranmer, “MadMiner: Machine learning-based inference for particle physics,” Comput. Softw. Big Sci
Original
1907
Earlier work this paper cites.
J. Brehmer, S. Dawson, S. Homiller, F. Kling, and T. Plehn, “Benchmarking simplified template cross sections in W H WH production,” JHEP
Original
1908
Earlier work this paper cites.
A. D. Sakharov, “Violation of CP Invariance, C asymmetry, and baryon asymmetry of the universe,” Pisma Zh. Eksp. Teor. Fiz
1967
Earlier work this paper cites.
W. Buchmuller and D. Wyler, “Effective Lagrangian Analysis of New Interactions and Flavor Conservation,” Nucl. Phys
1986
Earlier work this paper cites.
M. Jezabek, “Top quark physics,” Nucl. Phys. B Proc. Suppl
1994
Earlier work this paper cites.
P. Huet and E. Sather, “Electroweak baryogenesis and standard model CP violation,” Phys. Rev. D
1995
Earlier work this paper cites.
K. Kajantie, M. Laine, K. Rummukainen, and M. E. Shaposhnikov, “Is there a hot electroweak phase transition at m(H) larger or equal to m(W)?,” Phys. Rev. Lett
1996
Earlier work this paper cites.
S. Bar-Shalom, D. Atwood, G. Eilam, R. R. Mendel, and A. Soni, “Large tree level CP violation in e + e − → t t ¯ H 0 e^{+}e^{-}\to t\bar{t}H^{0} in the two Higgs doublet model,” Phys. Rev. D
1996
Earlier work this paper cites.
J. F. Gunion and X.-G. He, “Determining the CP nature of a neutral Higgs boson at the LHC,” Phys. Rev. Lett
1996
Earlier work this paper cites.
D. Atwood, S. Bar-Shalom, G. Eilam, and A. Soni, “CP violation in top physics,” Phys. Rept
2001
Earlier work this paper cites.
A. V. Gritsan, J. Roskes, U. Sarica, M. Schulze, M. Xiao, and Y. Zhou, “New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production,” Phys. Rev. D
Original
2002
Earlier work this paper cites.
B. Bortolato, J. F. Kamenik, N. Košnik, and A. Smolkovič, “Optimized probes of C P CP -odd effects in the t t ¯ h t\bar{t}h process at hadron colliders,” Nucl. Phys. B
Original
2006
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H. Bahl, P. Bechtle, S. Heinemeyer, J. Katzy, T. Klingl, K. Peters, M. Saimpert, T. Stefaniak, and G. Weiglein, “Indirect 𝒞 𝒫 \mathcal{CP} probes of the Higgs-top-quark interaction: current LHC constraints and future opportunities,” JHEP
Original
2007
Earlier work this paper cites.
Q.-H. Cao, K.-P. Xie, H. Zhang, and R. Zhang, “A New Observable for Measuring CP Property of Top-Higgs Interaction,” Chin. Phys. C
Original
2008
Earlier work this paper cites.
S. Berge, W. Bernreuther, and J. Ziethe, “Determining the CP parity of Higgs bosons at the LHC in their tau decay channels,” Phys. Rev. Lett
Original
2008
Earlier work this paper cites.

Similar

T. Sjostrand, S. Mrenna, and P. Z. Skands, “A Brief Introduction to PYTHIA 8.1,” Comput. Phys. Commun
Original
2008
Cited alongside, same era.
A. Denner, J.-N. Lang, and M. Pellen, “Full NLO QCD corrections to off-shell tt¯bb¯ production,” Phys. Rev. D
Original
2008
Cited alongside, same era.
B. Grzadkowski, M. Iskrzynski, M. Misiak, and J. Rosiek, “Dimension-Six Terms in the Standard Model Lagrangian,” JHEP
Original
2010
Cited alongside, same era.
G. Mahlon and S. J. Parke, “Spin Correlation Effects in Top Quark Pair Production at the LHC,” Phys. Rev. D
Original
2010
Cited alongside, same era.
W. Bernreuther and Z.-G. Si, “Distributions and correlations for top quark pair production and decay at the Tevatron and LHC.,” Nucl. Phys. B

Then

M. L. Mangano, T. Plehn, P. Reimitz, T. Schell, and H.-S. Shao, “Measuring the Top Yukawa Coupling at 100 TeV,” J. Phys. G
Original
2016
Later among the works it cites.
A. Kobakhidze, N. Liu, L. Wu, and J. Yue, “Implications of CP-violating Top-Higgs Couplings at LHC and Higgs Factories,” Phys. Rev. D
Original
2017
Later among the works it cites.
S. Amor Dos Santos et al
Original
2017
Later among the works it cites.
J. Brehmer, K. Cranmer, F. Kling, and T. Plehn, “Better Higgs boson measurements through information geometry,” Phys. Rev. D
Original
2017
Later among the works it cites.
P. Jackson and C. Rogan, “Recursive Jigsaw Reconstruction: HEP event analysis in the presence of kinematic and combinatoric ambiguities,” Phys. Rev. D

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2021

Machine learning the Higgs boson-top quark CP phase

Barman, Rahool Kumar, Gonçalves, Dorival, Kling, Felix

Understand

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 sensitivity, effectively probing the complex $t\bar{t}h$ multi-particle phase space.
Special attention is devoted to top quark polarization observables, uplifting the analysis from a raw rate to a polarization study.
Through a combination of hadronic, semi-leptonic, and di-leptonic top pair final states in association with $h\to \gamma\gamma$, we obtain that the HL-LHC can probe the Higgs-top coupling modifier and CP-phase, respectively, up to $|\kappa_t|\lesssim 8\%$ and $|\alpha|\lesssim 13^{\circ}$ at $68\%$~CL.

Built on

C. Englert, P. Galler, A. Pilkington, and M. Spannowsky, “Approaching robust EFT limits for CP-violation in the Higgs sector,” Phys. Rev. D
Original
1901
Earlier work this paper cites.
J. Ren, L. Wu, and J. M. Yang, “Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC,” Phys. Lett. B
Original
1901
Earlier work this paper cites.
M. Cepeda et al
Original
1902
Earlier work this paper cites.
J. Brehmer, K. Cranmer, I. Espejo, F. Kling, G. Louppe, and J. Pavez, “Effective LHC measurements with matrix elements and machine learning,” J. Phys. Conf. Ser
Original
1906
Earlier work this paper cites.
J. Brehmer, F. Kling, I. Espejo, and K. Cranmer, “MadMiner: Machine learning-based inference for particle physics,” Comput. Softw. Big Sci
Original
1907
Earlier work this paper cites.
J. Brehmer, S. Dawson, S. Homiller, F. Kling, and T. Plehn, “Benchmarking simplified template cross sections in W H WH production,” JHEP
Original
1908
Earlier work this paper cites.
A. D. Sakharov, “Violation of CP Invariance, C asymmetry, and baryon asymmetry of the universe,” Pisma Zh. Eksp. Teor. Fiz
1967
Earlier work this paper cites.
W. Buchmuller and D. Wyler, “Effective Lagrangian Analysis of New Interactions and Flavor Conservation,” Nucl. Phys
1986
Earlier work this paper cites.
M. Jezabek, “Top quark physics,” Nucl. Phys. B Proc. Suppl
1994
Earlier work this paper cites.
P. Huet and E. Sather, “Electroweak baryogenesis and standard model CP violation,” Phys. Rev. D
1995
Earlier work this paper cites.
K. Kajantie, M. Laine, K. Rummukainen, and M. E. Shaposhnikov, “Is there a hot electroweak phase transition at m(H) larger or equal to m(W)?,” Phys. Rev. Lett
1996
Earlier work this paper cites.
S. Bar-Shalom, D. Atwood, G. Eilam, R. R. Mendel, and A. Soni, “Large tree level CP violation in e + e − → t t ¯ H 0 e^{+}e^{-}\to t\bar{t}H^{0} in the two Higgs doublet model,” Phys. Rev. D
1996
Earlier work this paper cites.
J. F. Gunion and X.-G. He, “Determining the CP nature of a neutral Higgs boson at the LHC,” Phys. Rev. Lett
1996
Earlier work this paper cites.
D. Atwood, S. Bar-Shalom, G. Eilam, and A. Soni, “CP violation in top physics,” Phys. Rept
2001
Earlier work this paper cites.
A. V. Gritsan, J. Roskes, U. Sarica, M. Schulze, M. Xiao, and Y. Zhou, “New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production,” Phys. Rev. D
Original
2002
Earlier work this paper cites.
B. Bortolato, J. F. Kamenik, N. Košnik, and A. Smolkovič, “Optimized probes of C P CP -odd effects in the t t ¯ h t\bar{t}h process at hadron colliders,” Nucl. Phys. B
Original
2006
Earlier work this paper cites.
H. Bahl, P. Bechtle, S. Heinemeyer, J. Katzy, T. Klingl, K. Peters, M. Saimpert, T. Stefaniak, and G. Weiglein, “Indirect 𝒞 𝒫 \mathcal{CP} probes of the Higgs-top-quark interaction: current LHC constraints and future opportunities,” JHEP
Original
2007
Earlier work this paper cites.
Q.-H. Cao, K.-P. Xie, H. Zhang, and R. Zhang, “A New Observable for Measuring CP Property of Top-Higgs Interaction,” Chin. Phys. C
Original
2008
Earlier work this paper cites.
S. Berge, W. Bernreuther, and J. Ziethe, “Determining the CP parity of Higgs bosons at the LHC in their tau decay channels,” Phys. Rev. Lett
Original
2008
Earlier work this paper cites.

Similar

T. Sjostrand, S. Mrenna, and P. Z. Skands, “A Brief Introduction to PYTHIA 8.1,” Comput. Phys. Commun
Original
2008
Cited alongside, same era.
A. Denner, J.-N. Lang, and M. Pellen, “Full NLO QCD corrections to off-shell tt¯bb¯ production,” Phys. Rev. D
Original
2008
Cited alongside, same era.
B. Grzadkowski, M. Iskrzynski, M. Misiak, and J. Rosiek, “Dimension-Six Terms in the Standard Model Lagrangian,” JHEP
Original
2010
Cited alongside, same era.
G. Mahlon and S. J. Parke, “Spin Correlation Effects in Top Quark Pair Production at the LHC,” Phys. Rev. D
Original
2010
Cited alongside, same era.
W. Bernreuther and Z.-G. Si, “Distributions and correlations for top quark pair production and decay at the Tevatron and LHC.,” Nucl. Phys. B

Then

M. L. Mangano, T. Plehn, P. Reimitz, T. Schell, and H.-S. Shao, “Measuring the Top Yukawa Coupling at 100 TeV,” J. Phys. G
Original
2016
Later among the works it cites.
A. Kobakhidze, N. Liu, L. Wu, and J. Yue, “Implications of CP-violating Top-Higgs Couplings at LHC and Higgs Factories,” Phys. Rev. D
Original
2017
Later among the works it cites.
S. Amor Dos Santos et al
Original
2017
Later among the works it cites.
J. Brehmer, K. Cranmer, F. Kling, and T. Plehn, “Better Higgs boson measurements through information geometry,” Phys. Rev. D
Original
2017
Later among the works it cites.
P. Jackson and C. Rogan, “Recursive Jigsaw Reconstruction: HEP event analysis in the presence of kinematic and combinatoric ambiguities,” Phys. Rev. D

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Original

2010

Cited alongside, same era.

J. Brod, U. Haisch, and J. Zupan, “Constraints on CP-violating Higgs couplings to the third generation,” JHEP

Original

2013

Cited alongside, same era.

C. Englert, D. Goncalves-Netto, K. Mawatari, and T. Plehn, “Higgs Quantum Numbers in Weak Boson Fusion,” JHEP

Original

2013

Cited alongside, same era.

M. J. Dolan, P. Harris, M. Jankowiak, and M. Spannowsky, “Constraining C P CP -violating Higgs Sectors at the LHC using gluon fusion,” Phys. Rev. D

Original

2014

Cited alongside, same era.

J. Ellis, D. S. Hwang, K. Sakurai, and M. Takeuchi, “Disentangling Higgs-Top Couplings in Associated Production,” JHEP

Original

2014

Cited alongside, same era.

F. Demartin, F. Maltoni, K. Mawatari, B. Page, and M. Zaro, “Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction,” Eur. Phys. J. C

Original

2014

Cited alongside, same era.

J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H. S. Shao, T. Stelzer, P. Torrielli, and M. Zaro, “The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations,” JHEP

Original

2014

Cited alongside, same era.

DELPHES 3

Original

2014

Cited alongside, same era.

Original

2017