Phenomenology of a 750 GeV Singlet - INSPIRE

DataBETA

Phenomenology of a 750 GeV Singlet

Dec 17, 2015

20 pages

Published in:

JHEP 02 (2016) 152

Published: Feb 23, 2016

e-Print:

1512.05777 [hep-ph]

DOI:

10.1007/JHEP02(2016)152

View in:

ADS Abstract Service

reference search243 citations

Citations per year

Abstract: (arXiv)

We study the recently reported excess in the diphoton resonance search by ATLAS and CMS. We investigate the available parameter space in the combined run-1 and run-2 diphoton data and study its interpretation in terms of a singlet scalar field which possibly mixes with the Standard Model Higgs boson. We show that the mixing angle is already strongly constrained by high-mass Higgs searches in the diboson channel, and by Higgs coupling measurements. While a broad resonance is slightly favored, we argue that the signal is consistent with a narrow-width singlet which couples to colored and electromagnetically-charged vector-like fermions. Dijet signals are predicted and may be visible in upcoming analyses. Allowing for additional decay modes could explain a broader resonance, however, we show that monojet searches disfavor a large invisible width. Finally, we comment on the possible relation of this scenario to the naturalness problem.

Note:

21 pages; v2: references added, figures smoothed out, added discussion of Z-gamma and ZZ; v3: replaced to match JHEP 1602 (2016) 152

Beyond Standard Model
Higgs Physics
new physics
interpretation of experiments: ATLAS
interpretation of experiments: CMS
p p: scattering
photon: pair production
photon photon: mass spectrum
scalar particle: new particle
scalar particle: production

References(58)

Figures(16)

[1]

Search for resonances decaying to photon pairs in 3.2 fb $^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

[2]

Search for new physics in high mass diphoton events in proton-proton collisions at 13TeV

CMS

Collaboration

[3]

On the angular momentum of a system of two photons

L.D. Landau
(
- Moscow, Inst. Phys. Problems
)

- Dokl.Akad.Nauk SSSR 60 (1948) 2, 207-209
•
DOI:
- 10.1016/B978-0-08-010586-4.50070-5

[4]

Selection Rules for the Dematerialization of a Particle Into Two Photons

Chen-Ning Yang
(
- Chicago U., EFI
)

- Phys.Rev. 77 (1950) 242-245,
- In *Yang, C.N.: Selected Papers 1945-1980*, 127-130
•
DOI:
- 10.1103/PhysRev.77.242

[5]

The Twin Higgs: Natural electroweak breaking from mirror symmetry

Z. Chacko
(
- Arizona U.
)
,
Hock-Seng Goh
(
- Arizona U.
)
,
Roni Harnik
(
- UC, Berkeley and
- LBL, Berkeley
)

- Phys.Rev.Lett. 96 (2006) 231802
•
e-Print:
- hep-ph/0506256
•
DOI:
- 10.1103/PhysRevLett.96.231802

[6]

A Large mass hierarchy from a small extra dimension

Lisa Randall
(
- Princeton U. and
- MIT
)
,
Raman Sundrum
(
- Boston U.
)

- Phys.Rev.Lett. 83 (1999) 3370-3373
•
e-Print:
- hep-ph/9905221
•
DOI:
- 10.1103/PhysRevLett.83.3370

[7]

SCALAR PHANTOMS

- Phys.Lett.B 161 (1985) 136-140
•
DOI:
- 10.1016/0370-2693(85)90624-0

[8]

Echoes of a hidden valley at hadron colliders

- Phys.Lett.B 651 (2007) 374-379
•
e-Print:
- hep-ph/0604261
•
DOI:
- 10.1016/j.physletb.2007.06.055

[9]

Higgs After the Discovery: A Status Report

- JHEP 10 (2012) 196
•
e-Print:
- 1207.1718
•
DOI:
- 10.1007/JHEP10(2012)196

[10]

The QCD Axion from Aligned Axions and Diphoton Excess

Tetsutaro Higaki
(
- Keio U.
)
,
Kwang Sik Jeong
(
- Pusan Natl. U.
)
,
Naoya Kitajima
(
- APCTP, Pohang
)
,
Fuminobu Takahashi
(
- Tohoku U. and
- Tokyo U., IPMU
)

- Phys.Lett.B 755 (2016) 13-16
•
e-Print:
- 1512.05295
•
DOI:
- 10.1016/j.physletb.2016.01.055

[11]

Singlet Scalar Resonances and the Diphoton Excess

Samuel D. McDermott
(
- YITP, Stony Brook
)
,
Patrick Meade
(
- YITP, Stony Brook
)
,
Harikrishnan Ramani
(
- YITP, Stony Brook
)

- Phys.Lett.B 755 (2016) 353-357
•
e-Print:
- 1512.05326
•
DOI:
- 10.1016/j.physletb.2016.02.033

[12]

A pseudoscalar decaying to photon pairs in the early LHC Run 2 data

Matthew Low
(
- Princeton, Inst. Advanced Study
)
,
Andrea Tesi
(
- Chicago U. and
- Chicago U., EFI
)
,
Lian-Tao Wang
(
- Chicago U., EFI and
- Chicago U., KICP
)

- JHEP 03 (2016) 108
•
e-Print:
- 1512.05328
•
DOI:
- 10.1007/JHEP03(2016)108

[13]

Goldstones in Diphotons

Brando Bellazzini
(
- IPhT, Saclay and
- Padua U.
)
,
Roberto Franceschini
(
- CERN
)
,
Filippo Sala
(
- Paris, LPTHE
)
,
Javi Serra
(
- CERN and
- Padua U.
)

- JHEP 04 (2016) 072
•
e-Print:
- 1512.05330
•
DOI:
- 10.1007/JHEP04(2016)072

[14]

750 GeV Diphoton Excess from the Goldstino Superpartner

Christoffer Petersson
(
)
,
Riccardo Torre
(
- ITPP, Lausanne
)

- Phys.Rev.Lett. 116 (2016) 15, 151804
•
e-Print:
- 1512.05333
•
DOI:
- 10.1103/PhysRevLett.116.151804

[15]

Minimal Composite Dynamics versus Axion Origin of the Diphoton excess

- Mod.Phys.Lett.A 31 (2016) 26, 1650155
•
e-Print:
- 1512.05334
•
DOI:
- 10.1142/S0217732316501558

[16]

On the Interpretation of a Possible $\sim 750$ GeV Particle Decaying into $\gamma \gamma$

John Ellis
(
- CERN and
- King's Coll. London
)
,
Sebastian A. R. Ellis
(
- Michigan U. and
- Michigan U., MCTP
)
,
Jérémie Quevillon
(
- King's Coll. London
)
,
Veronica Sanz
(
- Sussex U.
)
,
Tevong You
(
- Cambridge U. and
- Cambridge U., DAMTP
)

- JHEP 03 (2016) 176
•
e-Print:
- 1512.05327
•
DOI:
- 10.1007/JHEP03(2016)176

[17]

Interpreting a 750 GeV Diphoton Resonance

Rick S. Gupta
(
- Weizmann Inst.
)
,
Sebastian Jäger
(
- Weizmann Inst. and
- Sussex U.
)
,
Yevgeny Kats
(
- Weizmann Inst.
)
,
Gilad Perez
(
- Weizmann Inst.
)
,
Emmanuel Stamou
(
- Weizmann Inst.
)

- JHEP 07 (2016) 145
•
e-Print:
- 1512.05332
•
DOI:
- 10.1007/JHEP07(2016)145

[18]

First interpretation of the 750 GeV diphoton resonance at the LHC

Stefano Di Chiara
(
- NICPB, Tallinn
)
,
Luca Marzola
(
- NICPB, Tallinn and
- Tartu, Inst. Phys.
)
,
Martti Raidal
(
- NICPB, Tallinn and
- Tartu, Inst. Phys.
)

- Phys.Rev.D 93 (2016) 9, 095018
•
e-Print:
- 1512.04939
•
DOI:
- 10.1103/PhysRevD.93.095018

[19]

What is the $\gamma \gamma$ resonance at 750 GeV?

Roberto Franceschini
(
- CERN
)
,
Gian F. Giudice
(
- CERN
)
,
Jernej F. Kamenik
(
- CERN and
- Ljubljana U. and
- Stefan Inst., Ljubljana
)
,
Matthew McCullough
(
- CERN
)
,
Alex Pomarol
(
- CERN and
- Barcelona, Autonoma U. and
- Barcelona, IFAE
)

et al.

- JHEP 03 (2016) 144
•
e-Print:
- 1512.04933
•
DOI:
- 10.1007/JHEP03(2016)144

[20]

Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider

Apostolos Pilaftsis
(
- Manchester U.
)

- Phys.Rev.D 93 (2016) 1, 015017
•
e-Print:
- 1512.04931
•
DOI:
- 10.1103/PhysRevD.93.015017

[21]

Knocking on new physics’ door with a scalar resonance

Dario Buttazzo
(
- Zurich U.
)
,
Admir Greljo
(
- Sarajevo U. and
- Zurich U.
)
,
David Marzocca
(
- Zurich U.
)

- Eur.Phys.J.C 76 (2016) 3, 116
•
e-Print:
- 1512.04929
•
DOI:
- 10.1140/epjc/s10052-016-3970-7

[22]

Rays of light from the LHC

Simon Knapen
(
- UC, Berkeley and
- LBL, Berkeley
)
,
Tom Melia
(
- UC, Berkeley and
- LBL, Berkeley
)
,
Michele Papucci
(
- UC, Berkeley and
- LBL, Berkeley
)
,
Kathryn Zurek
(
- UC, Berkeley and
- LBNL, Berkeley
)

- Phys.Rev.D 93 (2016) 7, 075020
•
e-Print:
- 1512.04928
•
DOI:
- 10.1103/PhysRevD.93.075020

[23]

Footprints of New Strong Dynamics via Anomaly and the 750 GeV Diphoton

Yuichiro Nakai
(
- Harvard U., Phys. Dept.
)
,
Ryosuke Sato
(
- Weizmann Inst. and
- KEK, Tsukuba
)
,
Kohsaku Tobioka
(
- Weizmann Inst. and
- KEK, Tsukuba and
- Tel Aviv U.
)

- Phys.Rev.Lett. 116 (2016) 15, 151802
•
e-Print:
- 1512.04924
•
DOI:
- 10.1103/PhysRevLett.116.151802

[24]

Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons

- Phys.Lett.B 756 (2016) 126-132
•
e-Print:
- 1512.04921
•
DOI:
- 10.1016/j.physletb.2016.02.064

[25]

Di-photon excess illuminates Dark Matter

Mihailo Backovic
(
- Louvain U., CP3
)
,
Alberto Mariotti
(
- Brussels U., IIHE and
- Intl. Solvay Inst., Brussels
)
,
Diego Redigolo
(
- UPMC, Paris (main) and
- Paris, LPTHE
)

- JHEP 03 (2016) 157
•
e-Print:
- 1512.04917
•
DOI:
- 10.1007/JHEP03(2016)157

1-25 of 58
1
2
3
25 / page