3,030 research outputs found

    Why the Higgs is light, why it has SM couplings to gauge bosons and fermions, where there are more Higgses to be found -- and a new result

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    Theortical particle physics seminar. Current LHC data indicate that H(125) is either the single Higgs of the Standard Model or, to a good approximation, an “aligned Higgs”. We propose that it is the pseudo-Goldstone dilaton of Gildener and Weinberg. This naturally and, we conjecture, uniquely accounts for its low mass and its alignment. It further implies the existence of additional Higgs bosons in the range ~200 to ~550 GeV. We illustrate this in a version of a 2HDM of Lee and Pilaftsis. Our version is consistent with all published precision EW (LEP) and LHC (ATLAS & CMS) data. We propose tests to confirm or exclude this model at the LHC. These include surprising results on cubic and quartic couplings and a prediction that di-Higgs production can be observed with Run2 data.Supporting documentatio

    The Gildener-Weinberg~mechanism and new targets within reach today

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    Invited presentation to the ATLAS Higgs and Diboson Search Group.Supporting documentatio

    Searching for dark matter at LHC with Mono-Higgs production

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    We consider LHC searches for dark matter in the mono-Higgs channel using the tools of effective field theory. This channel takes unique advantage of the presence of SU(2)LSU(2)_L breaking in those operators to avoid the need for any initial-state radiation, usually necessary to tag the production of invisible particles. We find that sensitivities to parameters describing dark matter interactions with standard model particles are comparable to those from monojet searches for a subset of the usually-considered operators, and we present for the first time bounds from collider searches on operators which couple DM to only the Higgs field or its covariant derivatives.Comment: 13 pages, 5 figure

    Output and Productivity Comparisons of the Transport and Communication Sectors of South Korea and Australia, 1990 to 1998

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    This paper examines the output and productivity performance of the Transport and Communication sector in South Korea and Australia, from 1990 to 1998. The aim of the paper is two-fold. First, the paper is the first in a series which compares the performance of various industries within the service sector. Second, it introduces a method for derivation of appropriate currency converters or purchasing power parities (PPPs) to enable quantification of output and productivity at various disaggregated levels. This method is based on the industry-of-origin approach as refined by the International Comparisons of Output and Productivity (ICOP) project based at the University of Groningen.

    Comparative Analysis of Transport and Communications Korea and Australia

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    This paper examines the output and productivity performance of the Transport and Communication sector in South Korea and Australia, from 1990 to 1999. The aim of the paper is two -fold. First, the paper is the first in a series which compares the performance of various industries within the service sector. Second, it introduces a method for derivation of appropriate currency converters or purchasing power parities (PPPs) to enable quantification of output and productivity at various disaggregated levels. This method is based on the industry -of-origin approach as refined by the International Co mparisons of Output and Productivity (ICOP) project based at the University of Groningen.purchasing power parity; output; productivity; transportation; communications

    Comparative Analysis of Output and Productivity in the Transport and Communication Sector: South Korea and Australia, 1990 to 1999

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    This paper examines the output and productivity performance of the Transport and Communication sector in South Korea and Australia, from 1990 to 1999. The aim of the paper is two-fold. First, the paper is the first in a series which compares the performance of various industries within the service sector. Second, it introduces a method for derivation of appropriate currency converters or purchasing power parities (PPPs) to enable quantification of output and productivity at various disaggregated levels. This method is based on the industry-of-origin approach as refined by the International Comparisons of Output and Productivity (ICOP) project based at the University of Groningen.

    Output and Productivity Performance of Hong Kong and Singapore’s Transport and Communications Sector, 1990 to 2005

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    This paper examines the output and productivity performance of the Transport and Communication sector in Hong Kong and Singapore, from 1990 to 2005. The aim of the paper is two-fold. First, the paper introduces a method for derivation of appropriate currency converters or purchasing power parities (PPPs) to enable quantification of output and productivity at various disaggregated levels of the transport and communications sector. This method is based on the industry-of-origin approach as refined by the International Comparisons of Output and Productivity (ICOP) project based at the University of Groningen. Second, the paper will attempt to address differences in output and productivity levels between these two countries with regard to their current policies in transport and communications. It will also examine the impact of events such as the Asian financial crisis, the global downturn in 2001, the events of September 11, as well as the outbreak of the Severe Acute Respiratory Syndrome (SARS) in 2003 on the transport and communication sector.
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