Central Force by Prof. Nitin Bijewar

Logo University of Mumbai

University of Mumbai Logos.

High Energy Physics Phenomenology

Area of the work is Theoretical High Energy Physics. The more specific area of work is collider physics phenomenology [1]. The phenomenology in High Energy Physics require the computational technique. The main task is to calculate the scattering cross section for the particular scattering process. The cross section involves the phase space integration. The phase space integration is done using the Monte Carlo integration technique [2]. The FORTRAN and C++ program for Monte Carlo are available. The processes where the many particles in the final state will have the as many phase space integrations as the particles in the final states. Such processes will take time for computation.

At high energy processes the higher order corrections involves the tensor integration and gamma martices multipication. For many number of gamma matrices can be done by writing the program in FORM language [3].

Also the various researchers across the world are writing the packages to make the calculations easy. The current available packages are PYTHIA [4], MadGraph5 [5], HELAS [6], mc@nlo [7], FastJet [8], HERWEG [9]. MadGraph is the event generator [11]. Event generater calculate the matrix element. The calculation of matrix element and cross section involves the phase space calculation. These eevent generater use the monte carlo integration techniques to do integration. To run these packages need the high speed computers.


1) Maxim Perelstein, arXiv:hep-ph/1002.0274.
2) F. Ambroglini etal, arXiv:hep-ph/0902.0180.
3) www.nikhef.nl/~form/maindir/courses/course1/sheets5.pdf
4) Torbjorn Sjostrand etal, arXiv:hep-ph/0710.3820.
5) Johan Alwall, arXiv:hep-ph/1106.0522.
6) K. Mawatari, arXiv:hep-ph/1101.1289.
7) S. Frixione etal, arXiv:hep-ph/0601192.
9) Matteo Cacciari, arXiv:hep-ph/0607071.
10) G. Corecella, arXiv:hep-ph/0011363.
11) Andy Buckley, arXiv:hep-ph/1101.2599

LHC (Large Hadron Collider) at CERN

LHC(Large Hadron Collider) is built at CERN, Genevva, Switzerland. Its the largest machine in the world to study the interaction of elementary particle. Its the most expensive experiment on the earth hoping to start work in the end of year 2009. The Circumference of the LHC is 27 Km. The LHC is designed to accelerate the proton in the opposite direction and the proton-proton collision takes place at the 4 detector designed at LHC. The energy the proton can reach in 7 TEV. So the proton proton collision takes place at the Centre of mass energy of 14 Tev.


The LHC has 4 detectors CMS, ATLAS, ALICE and LHCb at which the scattering events will takes place. The Indian scientist are working at CMS.


The proton proton collision at 14 tev will produce lots of heavy particle and the main task of scientist is to look for Higgs particle which is defined by the Standard Model in Particle physics.

Also the Supersymmetric particles and large extra dimensions search is the main goal in this experiment.

The Scattering event will look like this.

RAIGAD visit 02/08/2009

Our Group at RAIGAD.

We all started move to Raigad fort base at early morning  at 5.30 am bus from the Mahad bus depot in Raigad district. Bus reaches to the point where we have to walk to raigad at 7.00 am. We had breakfast there and stareted move towards Raidad fort. The slogan of encouragement was हर हर महादेव. Fog and clouds in the way was making elctric atmosphere. As it was the rainy season we got one waterfall on the way. The seanory around was beautiful. We reach at mahadarawaja (Main enetance door of fort) at 8.00 am. From there the Rajwada and Rajdarbar was  20 min away. On the way we have seen "Ganga Sagar" which is the largest watersource at Raigad fort. Finally we reach at Rajdarbar. The architect of Rajdarbar must be really great. The huage statue of Shiwaji RAJE is built there (picture 1).

Then we reached to steepest cliff of Raigad fort called Takmak tok point. TAKMAK point was relly facinating. Raigad is at that point and the fantastic view and fast blowing wind was the speciality of takmak point. Then we move to Mahadeo mandir and Samadhi of Raje. The atmosphere around was pleasent. Cloudes around making most of the things invisible. After having the "Pithala Bakari" at the one of the residence at raigad we made our move to the return way.

Chatrapati Shiwaji Maharaj

राजे

RAIGAD VISIT 02/08/2009

Theoretical High Energy Physics

It is the branch of Physics contains QED, QCD, SUSY(Supersymmetry), String Theory etc.
Quantum Field Theory is the the fundamental tool used in THEP.