Dr
Parinya Karndumri
(Department of Physics, Faculty of Science, Chulalongkorn University)
20/05/2015, 15:30
High Energy and Particle Physics
Invited talk
A consistent reduction ansatz of eleven-dimensional supergravity to $N=2$ $SO(4)$ seven-dimensional gauged supergravity is constructed. The resulting seven-dimensional theory admits a topological mass term for the three-form field and a maximally supersymmetric $AdS_7$ critical point. This is in contrast to the gauged supergravity without topological mass admitting a half-supersymmetric domain...
Patipan Uttayarat
(Department of Physics, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand)
20/05/2015, 16:00
High Energy and Particle Physics
Oral presentation
We present a sum rule for Higgs fields in general representations under $SU(2)_L \times U(1)_Y$ that follows from the connection between the Higgs couplings and the mechanism that gives the electroweak bosons their masses, and at the same time restricts these couplings.
Sum rules that follow from perturbative unitarity will require us to include singly and doubly charged Higgses in our...
Gurpreet Singh
(Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330 , Thailand)
20/05/2015, 16:15
High Energy and Particle Physics
Oral presentation
A search for the standard model Higgs boson in the vector boson fusion production channel with decay to bottom quarks is reported. A data sample comprising 19.8 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}$ = 8 TeV collected during the 2012 running period has been analysed and 95$\%$ confidence level upper limits on the cross section are derived in the mass range from 115 to 135 GeV....
Kittikul Kovitanggoon
(Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330 , Thailand)
20/05/2015, 16:30
High Energy and Particle Physics
Oral presentation
Various final state channels at, the Compact Muon Solenoid (CMS), contain charm quark jets. Charm quarks can be hadronized to D mesons which could travel some distance in the tracker before decaying, providing the displaced tracks and vertices. The CMS silicon tracker allows the precise reconstruction of such vertices and tracks that are displaced with respect to the primary interaction point....
Apichayaporn Ratkata
(Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
20/05/2015, 16:45
High Energy and Particle Physics
Oral presentation
The projections of limits for dark matter searches studying from the final states containing a monojet and missing transverse energy at the upgraded LHC are discussed. DM-sample events are generated using MadGraph. In addition, DELPHES simulations at 14 TeV are used to estimate signal and backgrounds to set the limits on DM nucleon cross sections. Additional simple projections using generator...
Dr
Ekapong Hirunsirisawat
(Office of Engineering Science Classroom, Learning Institute, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand)
20/05/2015, 17:00
High Energy and Particle Physics
Oral presentation
It has been found that the external magnetic field can induce particle creations from vacuum fluctuations of quantum electromagnetic field. This indicates that the quantum fluctuations associated with one loop corrections can be amplified by an intense magnetic field. It is interesting to consider the particle creation process in the dynamical Casimir effect on a magnetized background. In...
Kittipong Aimsamer
(Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, Thailand 10140)
20/05/2015, 17:15
High Energy and Particle Physics
Oral presentation
The vacuum of quantum electromagnetic field can be excited in the form of photon creation via the interaction with moving boundaries. This is so-called the dynamical Casimir effect. It is well known that the external magnetic field can result in the amplification of the quantum fluctuations of electromagnetic field. In the present work, we therefore consider photon creations from the...
