Published February 26, 2013 | Version v1
Journal article

Is 125 GeV techni-dilaton found at LHC?

  • 1. Maskawa Institute for Science and Culture, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-Ku, Kyoto 603-8555 (Japan)
  • 2. Kobayashi–Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University, Nagoya 464-8602 (Japan)

Description

A new particle at around 125 GeV has been observed at the LHC, which we show could be identified with the techni-dilaton (TD) predicted in the walking technicolor and thus should be an evidence of walking technicolor. The TD is a pseudo Nambu–Goldstone boson for the approximate scale symmetry spontaneously broken by techni-fermion condensation, with its lightness being ensured by the approximate scale invariance of the walking technicolor. We test the goodness-of-fit of the TD signatures using the presently available LHC data set, and show that the 125 GeV TD is actually favored by the current data to explain the reported signal strengths in the global fit as well as in each channel including the coupling properties, most notably the somewhat large diphoton event rate

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2013.01.031

Additional details

Identifiers

DOI
10.1016/j.physletb.2013.01.031;
arXiv
arXiv:1207.5911v2;
PII
S0370-2693(13)00056-7;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
719
Journal Issue
4-5
Journal Page Range
p. 378-382
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45060167
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CERN LHC; COUPLING; FERMIONS; GEV RANGE 100-1000; SCALE INVARIANCE; SIGNALS; SYMMETRY
Descriptors DEC
ACCELERATORS; CYCLIC ACCELERATORS; ENERGY RANGE; GEV RANGE; INVARIANCE PRINCIPLES; STORAGE RINGS; SYNCHROTRONS

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.