Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with widths, relative to the mass, between 1.4×10−41.4×10−4 and 5.6×10−25.6×10−2. The data sample corresponds to an integrated luminosity of 12.9 fb−112.9 fb−1 of proton–proton collisions collected with the CMS detector in 2016 at a center-of-mass energy of 13 TeV. No significant excess is observed relative to the standard model expectation. The results of the search are combined statistically with those previously obtained in 2012 and 2015 at View the MathML sources=8 and 13 TeV, respectively, corresponding to integrated luminosities of 19.7 and 3.3 fb−13.3 fb−1, to derive exclusion limits on scalar resonances produced through gluon–gluon fusion, and on Randall–Sundrum gravitons. The lower mass limits for Randall–Sundrum gravitons range from 1.95 to 4.45 TeV for coupling parameters between 0.01 and 0.2. These are the most stringent limits on Randall–Sundrum graviton production to date.
Date Issued
2017-04-10
Date Acceptance
2017-01-16
Citation
PHYSICS LETTERS B, 2017, 767 (4), pp.147-170
ISSN
0370-2693
Publisher
ELSEVIER
Start Page
147
End Page
170
Journal / Book Title
PHYSICS LETTERS B
Volume
767
Issue
4
Copyright Statement
© 2017
The
Author.
Published
by
Elsevier
B.V.
This
is
an
open
access
article
under
the
CC
BY
license
(http://creativecommons.org/licenses/by/4.0/
).
The
Author.
Published
by
Elsevier
B.V.
This
is
an
open
access
article
under
the
CC
BY
license
(http://creativecommons.org/licenses/by/4.0/
).
Sponsor
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000397861700025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/P005756/1
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
CMS
extra dimensions
Randall-Sundrum
Heavy resonance
Spin-0
Diphoton
PARTON DISTRIBUTIONS
HIERARCHY
hep-ex
hep-ex
0105 Mathematical Physics
0201 Astronomical and Space Sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Nuclear & Particles Physics
Publication Status
Published
Date Publish Online
2017-01-19