“Hossein Ghorbani”
Tel: +98 21 22809150
Fax: +98 21 22809148
Email:
IPM Positions 

Resident Researcher, School of Particles and Accelerator
(2016  2017 ) 

Past IPM Positions 

PostDoctoral Research Fellow, School of Particles and Accelerator
(2012  2016) 

Research Interests 

Beyond Standard Model (Modified)Gravity 

Research Activities 

There is a realization of instantons in string theory, the topological objects which are Devy wellknown in supersymmetry field theories. It turns out that beside the gauge instanton are the type of instantons called "exetic" or "string" instantons can imerge from string theory. They both correct the Lowenergy effective action of the theories. We have studied the effect of multistringy instantons in the prepotential of N=2 super YangMills theory with gauge group SU(2) and its generalization to SU(N).  
Present Research Project at IPM 

We are interested in extending the stringy instanton calculus to obtain the corrections in the prepotential of the N=2 super YangMills theory with gauge group SU(N)to all orders of instanton charges.  
Related Papers 
1.  K. Ghorbani and H. Ghorbani DAMPE ElectronPositron Excess in Leptophilic Z′ model JHEP 05 (2018), [abstract] arXive.org link: 1712.01239 [hepph] [ abs, src, ps, others], cited by Code: IPM/P.A585 
2.  K. Ghorbani and H. Ghorbani The 750 GeV Diphoton Excess from a Pseudoscalar in Fermionic Dark Matter Scenario (Submitted) [abstract] Code: IPM/P.A417 
3.  K. Ghorbani and H. Ghorbani Scalar Dark Matter in Scale Invariant Standard Model (Submitted) [abstract] Code: IPM/P.A416 
4.  K. Ghorbani and H. Ghorbani Twoportal Dark Matter Phys. Rev. D 91 (2015), [abstract] Code: IPM/P.A395 
5.  K. Ghorbani and H. Ghorbani Scalar Split WIMPs in the Future Direct Detection Experiments (Submitted) [abstract] Code: IPM/P.A393 
6.  M. Cesare, G. Esposito and H. Ghorbani Size of the Gribov region in curved spacetime Phys. Rev. D 88 (2013), [abstract] Code: IPM/P.A318 
7.  K. Ghorbani and H. Ghorbani Kaon semileptonic form factor at zero momentum transfer in finite volume Eur. Phys. J. A 49 (2013), [abstract] Code: IPM/P.A300 
8.  H. Ghorbani GaugeStringy Instantons in N=2 U(N) Gauge Theories JHEP 12 (2013), [abstract] Code: IPM/P.A301 
9.  M. Bertin, S. Ertl, H. Ghorbani, D. Grumiller, N. Johansson and D. Vassilevich Lobachevsky holography in conformal ChernSimons gravity JHEP 06 (2013), [abstract] Code: IPM/P.A290 
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