fady bishara - nbi conference and meetings (indico) · fady bishara based on: 1606.09253 f....
TRANSCRIPT
![Page 1: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/1.jpg)
Fady Bishara
Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re–and 1611.xxxxx FB, R. Contino, and J. Rojo–
![Page 2: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/2.jpg)
Motivation
● Does the Higgs couple to first and second generation fermions?
● If the Higgs couples to second generation quarks, can the LHC say anything about these couplings?
● Is EWSB in the SM minimal?– Is EWSB linearly realised?
● If EWSB is non-linearly realised, can we test this directly? If not, indirectly?
![Page 3: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/3.jpg)
Roadmap for this talk
1) The charm Yukawa coupling → Progress thus far
→ New ideas
→ How well can the LHC do?
2) The hhVV coupling → Why VBF
→ How well can the LHC do?
→ The ultimate precision at an FCC
![Page 4: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/4.jpg)
The projections in 2013
ILC TDR – vol. II: 1306.6352
![Page 5: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/5.jpg)
The picture in 2015
Perez et al.: 1503.00290
![Page 6: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/6.jpg)
Exclusive Higgs decays:Exclusive Higgs decays:
[Bodwin et al 13, 14][Improved predictions König, Neubert 15]
● ATLAS/CMS search:
● Can be extended to strange quark (even u & d)Kagan et al. [1406.1722]
![Page 7: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/7.jpg)
VH production + flavour tagging
Perez et al.: 1503.00290
W/Z
hc
s̄/ c̄
yc
See also: Brivio et al. 1507.02916
Perez et al.: 1505.06689
![Page 8: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/8.jpg)
A new idea
See also: Soreq et al. 1606.09621 for similar work on the u and d yukawas
![Page 9: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/9.jpg)
Contributions and their scaling
![Page 10: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/10.jpg)
Measured distributions
ATLAS: 1504.05833
![Page 11: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/11.jpg)
Normalised distributions
![Page 12: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/12.jpg)
Results
![Page 13: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/13.jpg)
Summary I
● Higgs pT distribution is sensitive so modified charm Yukawa
● Different channels have different functional dependence on κc
● Constraint at HL-LHC on modification of κc 2
[-0.6,3.0] at 95% CL will cut into parameter space of realistic models of flavour (e.g. modified GL)
![Page 14: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/14.jpg)
Part II
Double HiggsProduction in VBF
![Page 15: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/15.jpg)
● In the minimal SM, linear realization c→ V = c2V = c3 = 1 and all terms vanish…
● Measuring c2V 1 non-linearity!≠ →
Is EWSB (non-)linearly realised?
![Page 16: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/16.jpg)
Double Higgs production
VBF
GGF
![Page 17: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/17.jpg)
A concrete example
● In minimal SO(5)/SO(4) models, the couplings cV and c2V are given by
where
● And, looking at the longitudinal vector boson scattering we see that
● Choose a benchmark with c2V = 0.8 (to roughly correspond to » = 0.1 which is at the boundary of exclusion by ATLAS) ATLAS: [1509.00672]
Agashe et al. [hep-ph/0412089]Contino et al. [hep-ph/0612048]
![Page 18: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/18.jpg)
The hh invariant mass distribution14 TeV 100 TeV
![Page 19: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/19.jpg)
Scale invariant tagging Gouzevitch et al. [1303.6636]
![Page 20: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/20.jpg)
Scale invariant tagging
LHC 14 TeV
![Page 21: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/21.jpg)
Probability intervals on
![Page 22: Fady Bishara - NBI Conference and Meetings (Indico) · Fady Bishara Based on: 1606.09253 F. Bishara, U. Haisch, P. Monni, and E. Re– and 1611.xxxxx FB, R. Contino, and J. Rojo–](https://reader033.vdocument.in/reader033/viewer/2022060316/5f0c084d7e708231d4336aa2/html5/thumbnails/22.jpg)
Summary II
● Double Higgs production in VBF is useful to constrain hhVV couplings
● Boosted kinematics gives a crucial handle to tame backgrounds
● 30% precision achievable at the HL-LHC reaching the 1% level at a 100 TeV FCC