Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Goldberg, Haim"'
Publikováno v:
Phys. Rev. D 95, 063005 (2017)
We argue that ultrahigh energy cosmic ray collisions in the Earth atmosphere can probe the strange quark density of the nucleon. These collisions have center-of-mass energies \agt 10^{4.6} A GeV, where A \geq 14 is the nuclear baryon number. We hypot
Externí odkaz:
http://arxiv.org/abs/1612.07328
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lust, Dieter, Taylor, Tomasz R.
Publikováno v:
Phys. Rev. D 95, 026011 (2017)
We investigate left-right symmetric extensions of the standard model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes.
Externí odkaz:
http://arxiv.org/abs/1611.09785
We present yet another composite model explaining the relatively broad peak in the diphoton invariant mass distribution around 750 GeV recently observed at the LHC experiments. We consider the excess originates in bound states of vector-like fermions
Externí odkaz:
http://arxiv.org/abs/1605.01937
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lust, Dieter, Taylor, Tomasz R.
Motivated by the recent update on LHC searches for narrow and broad resonances decaying into diphotons we reconsider the possibility that the observed peak in the invariant mass spectrum at M_{\gamma \gamma} = 750 GeV originates from a closed string
Externí odkaz:
http://arxiv.org/abs/1603.08294
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lust, Dieter, Taylor, Tomasz R.
We show that low-mass-scale string compactifications, with a generic D-brane configuration that realizes the standard model by open strings, can explain the relatively broad peak in the diphoton invariant mass spectrum at 750 GeV recently reported by
Externí odkaz:
http://arxiv.org/abs/1512.08502
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Goldberg, Haim, Huang, Xing, Lust, Dieter, Taylor, Tomasz R.
Very recently, the ATLAS and CMS collaborations reported diboson and dijet excesses above standard model expectations in the invariant mass region of 1.8 -2.0 TeV. Interpreting the diboson excess of events in a model independent fashion suggests that
Externí odkaz:
http://arxiv.org/abs/1507.05299
Autor:
Anchordoqui, Luis A., Barger, Vernon, Goldberg, Haim, Huang, Xing, Marfatia, Danny, da Silva, Luiz H. M., Weiler, Thomas J.
Publikováno v:
Phys. Rev. D 94, 069901 (2016)
Cosmological parameters deduced from the Planck measurements of anisotropies in the cosmic microwave background are at some tension with direct astronomical measurements of various parameters at low redshifts. Very recently, it has been conjectured t
Externí odkaz:
http://arxiv.org/abs/1506.08788
Autor:
Anchordoqui, Luis A., Barger, Vernon, Goldberg, Haim, Huang, Xing, Marfatia, Danny, da Silva, Luiz H. M., Weiler, Thomas J.
Publikováno v:
Phys. Rev. D 92, 063504 (2015)
We study the vacuum stability of a minimal Higgs portal model in which the standard model (SM) particle spectrum is extended to include one complex scalar field and one Dirac fermion. These new fields are singlets under the SM gauge group and are cha
Externí odkaz:
http://arxiv.org/abs/1506.04702
Publikováno v:
Phys. Rev. D 90, 123010 (2014)
Motivated by recent IceCube observations we re-examine the idea that microquasars are high energy neutrino emitters. By stretching to the maximum the parameters of the Fermi engine we show that the nearby high-mass X-ray binary LS 5039 could accelera
Externí odkaz:
http://arxiv.org/abs/1410.0348
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Dai, De-Chang, Feng, Wan-Zhe, Goldberg, Haim, Huang, Xing, Lust, Dieter, Stojkovic, Dejan, Taylor, Tomasz R.
Publikováno v:
Phys. Rev. D 90, 066013 (2014)
[Abridged] We consider extensions of the standard model based on open strings ending on D-branes. Assuming that the fundamental string mass scale M_s is in the TeV range and that the theory is weakly coupled, we discuss possible signals of string phy
Externí odkaz:
http://arxiv.org/abs/1407.8120