Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Effects of Universal Lűscher Term in Static Properties of Mesons.

Not scheduled
Auditorium Maximum (Kraków, Poland)

Auditorium Maximum

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
Poster session


Mr Sabyasachi Roy (Karimganj College, Karimganj, India.)


Nambu-Goto string predicts the long distance quark-antiquark potential to be : V (r) = σ r + µ +γ /r + O(1/r2). The coefficient γ = -π(d-2)/24 is the universal Lűscher term which depends on the space-time dimension ‘d’. Recent lattice calculation of the force versus distance supports this potential for r>0 and d=3 & 4. We use quantum mechanical Dalgerno’s method to calculate the effect of Luscher term in quark-antiquark wave function and apply it to the mass and decay constants of heavy-light and heavy-heavy mesons.

Primary author

Mr Sabyasachi Roy (Karimganj College, Karimganj, India.)


Prof. Dilip Kumar Choudhury (Gauhati University, India)

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