Probing CP violation in e+e- production of the Higgs boson and toponia

Hagiwara, Kaoru; Ma, Kai; Yokoya, Hiroshi

doi:10.1007/JHEP06(2016)048

Title: Probing CP violation in e⁺e^- production of the Higgs boson and toponia

Abstract

We study the CP violation in the Higgs boson and toponia production process at the ILC where the toponia are produced near the threshold. With the approximation that the production vertex of the Higgs boson and toponia is contact, and neglecting the P-wave toponia, we analytically calculated the density matrix for the production and decay of the toponia. Under these assumptions, the production spectrum of the toponia is solely determined by the spin quantum number, therefore the toponia can be either singlet or triplet. We find that the production rate of the singlet toponium is highly suppressed, and behaves just like the production of a P-wave toponia. In the case of the triplet toponium, three completely independent CP observables, namely azimuthal angles of lepton and antilepton in the toponium rest-frame as well as their sum, are predicted based on our analytical results, and checked by using the tree-level event generator. The non-trivial correlations come from the longitudinal-transverse interferences for the azimuthal angles of leptons, and the transverse-transverse interference for their sum. These three observables are well defined at the ILC, where the rest frame of the toponium can be reconstructed directly. Furthermore, the QCD-strong corrections, which are important near themore »« less

Authors:

Hagiwara, Kaoru ^[1]; Ma, Kai ^[2]; Yokoya, Hiroshi ^[3]

High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); Sokendai, Tsukuba (Japan); Univ. of Wisconsin, Madison, WI (United States)
High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); Sokendai, Tsukuba (Japan); Shaanxi Univ. of Technology, Hanzhong (China)
High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)

Publication Date:: Wed Jun 08 00:00:00 EDT 2016

Research Org.:: Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1438011

Grant/Contract Number:: fg02-95ER40896

Resource Type:: Accepted Manuscript

Journal Name:: Journal of High Energy Physics (Online)

Additional Journal Information:: Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 6; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; CP violation; Higgs Physics

Citation Formats


                    Hagiwara, Kaoru, Ma, Kai, and Yokoya, Hiroshi. Probing CP violation in e+e- production of the Higgs boson and toponia.  United States: N. p., 2016. 
Web.  doi:10.1007/JHEP06(2016)048.

Copy to clipboard


                    Hagiwara, Kaoru, Ma, Kai, & Yokoya, Hiroshi. Probing CP violation in e+e- production of the Higgs boson and toponia.  United States.  https://doi.org/10.1007/JHEP06(2016)048

Copy to clipboard


                    Hagiwara, Kaoru, Ma, Kai, and Yokoya, Hiroshi. Wed .  
"Probing CP violation in e+e- production of the Higgs boson and toponia".  United States.  https://doi.org/10.1007/JHEP06(2016)048.  https://www.osti.gov/servlets/purl/1438011.

Copy to clipboard


                    
@article{osti_1438011,

  title        = {Probing CP violation in e+e- production of the Higgs boson and toponia},

  author       = {Hagiwara, Kaoru and Ma, Kai and Yokoya, Hiroshi},

  abstractNote = {We study the CP violation in the Higgs boson and toponia production process at the ILC where the toponia are produced near the threshold. With the approximation that the production vertex of the Higgs boson and toponia is contact, and neglecting the P-wave toponia, we analytically calculated the density matrix for the production and decay of the toponia. Under these assumptions, the production spectrum of the toponia is solely determined by the spin quantum number, therefore the toponia can be either singlet or triplet. We find that the production rate of the singlet toponium is highly suppressed, and behaves just like the production of a P-wave toponia. In the case of the triplet toponium, three completely independent CP observables, namely azimuthal angles of lepton and antilepton in the toponium rest-frame as well as their sum, are predicted based on our analytical results, and checked by using the tree-level event generator. The non-trivial correlations come from the longitudinal-transverse interferences for the azimuthal angles of leptons, and the transverse-transverse interference for their sum. These three observables are well defined at the ILC, where the rest frame of the toponium can be reconstructed directly. Furthermore, the QCD-strong corrections, which are important near the threshold region, are also studied with the approximation of spin-independent QCD-Coulomb potential. While the total cross section is enhanced, the spin correlations predicted in this paper are not affected.},

  doi          = {10.1007/JHEP06(2016)048},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 6,

  volume       = 2016,

  place        = {United States},

  year         = {Wed Jun 08 00:00:00 EDT 2016},

  month        = {Wed Jun 08 00:00:00 EDT 2016}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1007/JHEP06(2016)048

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 13 works

Citation information provided by
Web of Science

Figures / Tables:

Figure 1: Feynman diagrams which contribute to the $B$ − $htt̄$ effective vertex (labeled by a big gray dot) in the threshold region.

All figures and tables (13 total)

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Boosting the Direct $C P$ Measurement of the Higgs-Top Coupling
journal, March 2016

Buckley, Matthew R.; Gonçalves, Dorival
Physical Review Letters, Vol. 116, Issue 9
DOI: 10.1103/PhysRevLett.116.091801

Determining the $C P$ Properties of the Higgs Boson
journal, February 2008

Bhupal Dev, P. S.; Djouadi, A.; Godbole, R. M.
Physical Review Letters, Vol. 100, Issue 5
DOI: 10.1103/PhysRevLett.100.051801

Anomalous top-Higgs couplings and top polarisation in single top and Higgs associated production at the LHC
journal, October 2014

Kobakhidze, Archil; Wu, Lei; Yue, Jason
Journal of High Energy Physics, Vol. 2014, Issue 10
DOI: 10.1007/JHEP10(2014)100

Flavor landscape of 10D SYM theory with magnetized extra dimensions
journal, April 2014

Abe, Hiroyuki; Kobayashi, Tatsuo; Ohki, Hiroshi
Journal of High Energy Physics, Vol. 2014, Issue 4
DOI: 10.1007/JHEP04(2014)007

Disentangling Higgs-top couplings in associated production
journal, April 2014

Ellis, John; Hwang, Dae Sung; Sakurai, Kazuki
Journal of High Energy Physics, Vol. 2014, Issue 4
DOI: 10.1007/JHEP04(2014)004

Next-to-leading-logarithmic QCD corrections to the cross section $σ (e^{+} e^{-} \to t \bar{t} H)$ at 500 GeV
journal, July 2006

Farrell, Cailin; Hoang, André H.
Physical Review D, Vol. 74, Issue 1
DOI: 10.1103/PhysRevD.74.014008

Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
journal, September 2014

Demartin, Federico; Maltoni, Fabio; Mawatari, Kentarou
The European Physical Journal C, Vol. 74, Issue 9
DOI: 10.1140/epjc/s10052-014-3065-2

Large Higgs energy region in Higgs associated top pair production at the Linear Collider
journal, July 2005

Farrell, Cailin; Hoang, André H.
Physical Review D, Vol. 72, Issue 1
DOI: 10.1103/PhysRevD.72.014007

Measurement of the properties of a Higgs boson in the four-lepton final state
journal, May 2014

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
Physical Review D, Vol. 89, Issue 9
DOI: 10.1103/PhysRevD.89.092007

Measuring the Higgs boson parity at a Linear Collider using $\tau$ impact parameter and $\tau \to \rho \nu$ decay
journal, August 2003

Desch, K.; Was, Z.; Worek, M.
The European Physical Journal C, Vol. 29, Issue 4
DOI: 10.1140/epjc/s2003-01231-4

Evidence for the spin-0 nature of the Higgs boson using ATLAS data
journal, October 2013

Aad, G.; Abajyan, T.; Abbott, B.
Physics Letters B, Vol. 726, Issue 1-3
DOI: 10.1016/j.physletb.2013.08.026

Pseudoscalar Higgs bosons at the LHC: production and decays into electroweak gauge bosons revisited
journal, May 2010

Bernreuther, Werner; González, Patrick; Wiebusch, Martin
The European Physical Journal C, Vol. 69, Issue 1-2
DOI: 10.1140/epjc/s10052-010-1335-1

Higgs CP properties using the τ decay modes at the ILC
journal, December 2013

Berge, Stefan; Bernreuther, Werner; Spiesberger, Hubert
Physics Letters B, Vol. 727, Issue 4-5
DOI: 10.1016/j.physletb.2013.11.006

ttH anomalous coupling in double Higgs production
journal, April 2014

Nishiwaki, Kenji; Niyogi, Saurabh; Shivaji, Ambresh
Journal of High Energy Physics, Vol. 2014, Issue 4
DOI: 10.1007/JHEP04(2014)011

Probing a light CP-odd scalar in di-top-associated production at the LHC
journal, October 2015

Casolino, Mirkoantonio; Farooque, Trisha; Juste, Aurelio
The European Physical Journal C, Vol. 75, Issue 10
DOI: 10.1140/epjc/s10052-015-3708-y

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
journal, September 2012

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
Physics Letters B, Vol. 716, Issue 1
DOI: 10.1016/j.physletb.2012.08.021

Determining the CP parity of Higgs bosons at the LHC in the τ to 1-prong decay channels
journal, February 2009

Berge, Stefan; Bernreuther, Werner
Physics Letters B, Vol. 671, Issue 4-5
DOI: 10.1016/j.physletb.2008.12.065

Use of the or decay mode to distinguish an intermediate mass Higgs boson from a technipion
journal, June 1989

Dell'Aquila, Joseph R.; Nelson, Charles A.
Nuclear Physics B, Vol. 320, Issue 1
DOI: 10.1016/0550-3213(89)90212-5

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
journal, September 2012

Aad, G.; Abajyan, T.; Abbott, B.
Physics Letters B, Vol. 716, Issue 1
DOI: 10.1016/j.physletb.2012.08.020

A framework for Higgs characterisation
journal, November 2013

Artoisenet, P.; de Aquino, P.; Demartin, F.
Journal of High Energy Physics, Vol. 2013, Issue 11
DOI: 10.1007/JHEP11(2013)043

Model-independent analysis of Higgs spin and CP properties in the process $\boldsymbol{e}^{+} \boldsymbol{e}^{-} \to\boldsymbol{t}\bar{\boldsymbol{t}} \boldsymbol{\Phi}$
journal, June 2011

Godbole, R. M.; Hangst, C.; Mühlleitner, M.
The European Physical Journal C, Vol. 71, Issue 6
DOI: 10.1140/epjc/s10052-011-1681-7

CP determination for new spin zero mesons by the decay mode
journal, June 1989

Dell'Aquila, Joseph R.; Nelson, Charles A.
Nuclear Physics B, Vol. 320, Issue 1
DOI: 10.1016/0550-3213(89)90211-3

Constraints on CP-violating Higgs couplings to the third generation
journal, November 2013

Brod, Joachim; Haisch, Ulrich; Zupan, Jure
Journal of High Energy Physics, Vol. 2013, Issue 11
DOI: 10.1007/JHEP11(2013)180

Measuring the Higgs boson's parity using τ→ρν
journal, September 2002

Bower, G. R.; Pierzchała, T.; Wa̧s, Z.
Physics Letters B, Vol. 543, Issue 3-4
DOI: 10.1016/S0370-2693(02)02445-0

Updated global analysis of Higgs couplings
journal, June 2013

Ellis, John; You, Tevong
Journal of High Energy Physics, Vol. 2013, Issue 6
DOI: 10.1007/JHEP06(2013)103

Determining the $C P$ Parity of Higgs Bosons via Their $τ$ Decay Channels at the Large Hadron Collider
journal, April 2008

Berge, Stefan; Bernreuther, Werner; Ziethe, Jörg
Physical Review Letters, Vol. 100, Issue 17
DOI: 10.1103/PhysRevLett.100.171605

Probing the top-Higgs coupling through the secondary lepton distributions in the associated production of the top-quark pair and Higgs boson at the LHC
journal, October 2015

Kołodziej, Karol; Słapik, Aleksandra
The European Physical Journal C, Vol. 75, Issue 10
DOI: 10.1140/epjc/s10052-015-3696-y

Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to $Z$ Boson Pairs
journal, February 2013

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
Physical Review Letters, Vol. 110, Issue 8
DOI: 10.1103/PhysRevLett.110.081803

Probing the Higgs Couplings to Photons in $h \to 4 ℓ$ at the LHC
journal, November 2014

Chen, Yi; Harnik, Roni; Vega-Morales, Roberto
Physical Review Letters, Vol. 113, Issue 19
DOI: 10.1103/PhysRevLett.113.191801

Probing CP violation in h → γγ with converted photons
journal, April 2014

Bishara, Fady; Grossman, Yuval; Harnik, Roni
Journal of High Energy Physics, Vol. 2014, Issue 4
DOI: 10.1007/JHEP04(2014)084

Bound-state effects on kinematical distributions of top quarks at hadron colliders
journal, September 2010

Sumino, Yukinari; Yokoya, Hiroshi
Journal of High Energy Physics, Vol. 2010, Issue 9
DOI: 10.1007/JHEP09(2010)034

Impact of a $C P$ -Violating Higgs Sector: From LHC to Baryogenesis
journal, August 2013

Shu, Jing; Zhang, Yue
Physical Review Letters, Vol. 111, Issue 9
DOI: 10.1103/PhysRevLett.111.091801

Stability and integration over Bergman metrics
journal, July 2014

Klevtsov, Semyon; Zelditch, Steve
Journal of High Energy Physics, Vol. 2014, Issue 7
DOI: 10.1007/JHEP07(2014)100

Determining the Structure of Higgs Couplings at the CERN Large Hadron Collider
journal, January 2002

Plehn, Tilman; Rainwater, David; Zeppenfeld, Dieter
Physical Review Letters, Vol. 88, Issue 5
DOI: 10.1103/PhysRevLett.88.051801

A Relativistic Equation for Bound-State Problems
journal, December 1951

Salpeter, E. E.; Bethe, H. A.
Physical Review, Vol. 84, Issue 6
DOI: 10.1103/PhysRev.84.1232

Works referencing / citing this record:

Fully-differential top-pair production at a lepton collider: from threshold to continuum
journal, March 2018

Bach, Fabian; Nejad, Bijan Chokoufé; Hoang, André H.
Journal of High Energy Physics, Vol. 2018, Issue 3
DOI: 10.1007/jhep03(2018)184

Fully-differential top-pair production at a lepton collider: from threshold to continuum
text, January 2018

Bach, Fabian; Nejad, Bijan Chokoufé; Hoang, André H.
Deutsches Elektronen-Synchrotron, DESY, Hamburg
DOI: 10.3204/pubdb-2018-01671

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum
text, January 2017

Bach, Fabian; Nejad, Bijan Chokoufé; Hoang, Andre
Deutsches Elektronen-Synchrotron, DESY, Hamburg
DOI: 10.3204/pubdb-2017-13409

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum
text, January 2017

Bach, Fabian; Nejad, Bijan Chokoufé; Hoang, Andre
arXiv
DOI: 10.48550/arxiv.1712.02220

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Unusual initial and final state effects in quantum chromodynamics. Progress report, April 1984-March 1985

Technical Report Nelson, C A

In the past year we have proposed a variation of the QCD parton model in which the partons are identified with nearly degenerate quark-gluon states. This relies only on the Kinoshita-Lee-Nauenberg theorem to cancel infrared singularities. Calculations at O(..cap alpha../sub s/) were then done for deep inelastic scattering for the nonsinglet structure functions and the nonsinglet operator matrix elements. In both quantities, the soft infrared singularities cancel and the collinear singularities cancel. Thus the proposal has been implemented. By the operator product expansion the associated coefficient function is obtained and it is the usual one. About a year ago wemore »« less
Finding the CP-violating Higgs bosons at e{sup +}e{sup {minus}} colliders

Journal Article Grzadkowski, B ; Gunion, J F ; Kalinowski, J - Physical Review, D

We discuss a general two-Higgs-doublet model with CP violation in the Higgs sector. In general, the three neutral Higgs fields of the model all mix and the resulting physical Higgs bosons have no definite CP properties. We derive a new sum rule relating Yukawa and Higgs-Z couplings which implies that a neutral Higgs boson cannot escape detection at an e{sup +}e{sup {minus}} collider if it is kinematically accessible in Z+Higgs boson, b{bar b}+Higgs boson and t{bar t}+Higgs boson production, irrespective of the mixing angles and the masses of the other neutral Higgs bosons. We also discuss modifications of the summore »« less
https://doi.org/10.1103/PhysRevD.60.075011
Probing the CP nature of Higgs boson through e{sup -}e{sup +}{yields}e{sup -}e{sup +}{phi}

Journal Article Qinghong, Cao ; Larios, F ; Tavares-Velasco, G ; ... - Physical Review. D, Particles Fields

We study the production of Higgs boson ({phi}) via the e{sup -}e{sup +}{yields}e{sup -}e{sup +}{phi} process at a future International Linear Collider (ILC) with {radical}(S)=1 TeV. At this energy the ZZ-fusion rate, as predicted by the standard model, dominates over the associated ZH production rate. Here, we consider a class of theory models based on the effective {phi}VV (with V=Z, {gamma}) couplings generated by dimension-6 operators. We also show how to use the kinematical distributions of the final state leptons to discriminate the CP-even and CP-odd Higgs bosons produced at the ILC, when the {phi}{gamma}{gamma} coupling dominates the Higgs bosonmore » production rate.« less
https://doi.org/10.1103/PHYSREVD.74.056001
Probing the top Yukawa coupling at the LHC via associated production of single top and Higgs

Journal Article Barger, Vernon ; Hagiwara, Kaoru ; Zheng, Ya-Juan - Journal of High Energy Physics (Online)

We study Higgs boson production associated with single top or anti-top via t-channel weak boson exchange at the LHC. The process is an ideal probe of the top quark Yukawa coupling, because we can measure the relative phase of htt and hWW couplings, thanks to the significant interference between the two amplitudes. By choosing the emitted W momentum along the polar axis in the th (more »« less
https://doi.org/10.1007/jhep09(2020)101

Full Text Available
Spin and chirality effects in antler-topology processes at high energy $$$$\varvec{e^+e^-}$$$$ colliders

Journal Article Choi, S. Y. ; Christensen, N. D. ; Salmon, D. ; ... - European Physical Journal. C, Particles and Fields

We perform a model-independent investigation of spin and chirality correlation effects in the antler-topology processes e⁺e^-→P⁺P^-→(ℓ+D0)(ℓ-D¯0) at high-energy e⁺e^- colliders with polarized beams. Generally the production process e⁺e^-→P⁺P^- can occur not only through the s-channel exchange of vector bosons, V0 , including the neutral Standard Model (SM) gauge bosons, γ and Z, but also through the s- and t-channel exchanges of new neutral states, S0 and T0 , and the u-channel exchange of new doubly charged states, U-- . The general set of (non-chiral) three-point couplings of the new particles and leptons allowed in a renormalizable quantum field theory ismore »« less
Cited by 2
https://doi.org/10.1140/epjc/s10052-015-3682-4

Similar Records

Title: Probing CP violation in e+e- production of the Higgs boson and toponia

Abstract

Citation Formats

Figures / Tables:

Boosting the Direct C P Measurement of the Higgs-Top Coupling journal, March 2016

Determining the C P Properties of the Higgs Boson journal, February 2008

Anomalous top-Higgs couplings and top polarisation in single top and Higgs associated production at the LHC journal, October 2014

Flavor landscape of 10D SYM theory with magnetized extra dimensions journal, April 2014

Disentangling Higgs-top couplings in associated production journal, April 2014

Next-to-leading-logarithmic QCD corrections to the cross section σ ( e + e − → t t ¯ H ) at 500 GeV journal, July 2006

Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction journal, September 2014

Large Higgs energy region in Higgs associated top pair production at the Linear Collider journal, July 2005

Measurement of the properties of a Higgs boson in the four-lepton final state journal, May 2014

Measuring the Higgs boson parity at a Linear Collider using $\tau$ impact parameter and $\tau \to \rho \nu$ decay journal, August 2003

Evidence for the spin-0 nature of the Higgs boson using ATLAS data journal, October 2013

Pseudoscalar Higgs bosons at the LHC: production and decays into electroweak gauge bosons revisited journal, May 2010

Higgs CP properties using the τ decay modes at the ILC journal, December 2013

ttH anomalous coupling in double Higgs production journal, April 2014

Probing a light CP-odd scalar in di-top-associated production at the LHC journal, October 2015

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC journal, September 2012

Determining the CP parity of Higgs bosons at the LHC in the τ to 1-prong decay channels journal, February 2009

Use of the or decay mode to distinguish an intermediate mass Higgs boson from a technipion journal, June 1989

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC journal, September 2012

A framework for Higgs characterisation journal, November 2013

Model-independent analysis of Higgs spin and CP properties in the process $\boldsymbol{e}^{+} \boldsymbol{e}^{-} \to\boldsymbol{t}\bar{\boldsymbol{t}} \boldsymbol{\Phi}$ journal, June 2011

CP determination for new spin zero mesons by the decay mode journal, June 1989

Constraints on CP-violating Higgs couplings to the third generation journal, November 2013

Measuring the Higgs boson's parity using τ→ρν journal, September 2002

Updated global analysis of Higgs couplings journal, June 2013

Determining the C P Parity of Higgs Bosons via Their τ Decay Channels at the Large Hadron Collider journal, April 2008

Probing the top-Higgs coupling through the secondary lepton distributions in the associated production of the top-quark pair and Higgs boson at the LHC journal, October 2015

Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs journal, February 2013

Probing the Higgs Couplings to Photons in h → 4 ℓ at the LHC journal, November 2014

Probing CP violation in h → γγ with converted photons journal, April 2014

Bound-state effects on kinematical distributions of top quarks at hadron colliders journal, September 2010

Impact of a C P -Violating Higgs Sector: From LHC to Baryogenesis journal, August 2013

Stability and integration over Bergman metrics journal, July 2014

Determining the Structure of Higgs Couplings at the CERN Large Hadron Collider journal, January 2002

A Relativistic Equation for Bound-State Problems journal, December 1951

Fully-differential top-pair production at a lepton collider: from threshold to continuum journal, March 2018

Fully-differential top-pair production at a lepton collider: from threshold to continuum text, January 2018

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum text, January 2017

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum text, January 2017

Title: Probing CP violation in e⁺e^- production of the Higgs boson and toponia

Boosting the Direct $C P$ Measurement of the Higgs-Top Coupling
journal, March 2016

Determining the $C P$ Properties of the Higgs Boson
journal, February 2008

Anomalous top-Higgs couplings and top polarisation in single top and Higgs associated production at the LHC
journal, October 2014

Flavor landscape of 10D SYM theory with magnetized extra dimensions
journal, April 2014

Disentangling Higgs-top couplings in associated production
journal, April 2014

Next-to-leading-logarithmic QCD corrections to the cross section $σ (e^{+} e^{-} \to t \bar{t} H)$ at 500 GeV
journal, July 2006

Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
journal, September 2014

Large Higgs energy region in Higgs associated top pair production at the Linear Collider
journal, July 2005

Measurement of the properties of a Higgs boson in the four-lepton final state
journal, May 2014

Measuring the Higgs boson parity at a Linear Collider using $\tau$ impact parameter and $\tau \to \rho \nu$ decay
journal, August 2003

Evidence for the spin-0 nature of the Higgs boson using ATLAS data
journal, October 2013

Pseudoscalar Higgs bosons at the LHC: production and decays into electroweak gauge bosons revisited
journal, May 2010

Higgs CP properties using the τ decay modes at the ILC
journal, December 2013

ttH anomalous coupling in double Higgs production
journal, April 2014

Probing a light CP-odd scalar in di-top-associated production at the LHC
journal, October 2015

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
journal, September 2012

Determining the CP parity of Higgs bosons at the LHC in the τ to 1-prong decay channels
journal, February 2009

Use of the or decay mode to distinguish an intermediate mass Higgs boson from a technipion
journal, June 1989

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
journal, September 2012

A framework for Higgs characterisation
journal, November 2013

Model-independent analysis of Higgs spin and CP properties in the process $\boldsymbol{e}^{+} \boldsymbol{e}^{-} \to\boldsymbol{t}\bar{\boldsymbol{t}} \boldsymbol{\Phi}$
journal, June 2011

CP determination for new spin zero mesons by the decay mode
journal, June 1989

Constraints on CP-violating Higgs couplings to the third generation
journal, November 2013

Measuring the Higgs boson's parity using τ→ρν
journal, September 2002

Updated global analysis of Higgs couplings
journal, June 2013

Determining the $C P$ Parity of Higgs Bosons via Their $τ$ Decay Channels at the Large Hadron Collider
journal, April 2008

Probing the top-Higgs coupling through the secondary lepton distributions in the associated production of the top-quark pair and Higgs boson at the LHC
journal, October 2015

Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to $Z$ Boson Pairs
journal, February 2013

Probing the Higgs Couplings to Photons in $h \to 4 ℓ$ at the LHC
journal, November 2014

Probing CP violation in h → γγ with converted photons
journal, April 2014

Bound-state effects on kinematical distributions of top quarks at hadron colliders
journal, September 2010

Impact of a $C P$ -Violating Higgs Sector: From LHC to Baryogenesis
journal, August 2013

Stability and integration over Bergman metrics
journal, July 2014

Determining the Structure of Higgs Couplings at the CERN Large Hadron Collider
journal, January 2002

A Relativistic Equation for Bound-State Problems
journal, December 1951

Fully-differential top-pair production at a lepton collider: from threshold to continuum
journal, March 2018

Fully-differential top-pair production at a lepton collider: from threshold to continuum
text, January 2018

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum
text, January 2017

Fully-differential Top-Pair Production at a Lepton Collider: From Threshold to Continuum
text, January 2017