| Saturday 21 December 2024 | |
| Events for day: Wednesday 02 October 2024 |
IRCHEP 1403 PHYSICS IRCHEP 1403 Iranian Conference on High Energy Physics Deciphering the Universe Ciphers School of Physics, IPM September 30th-October 2nd, 2024 (9-11 Mehr,1403) ... 11:00 - 12:00 Special Seminar - Hybrid Format Fine structure of the massless perturbation theory series in QCD and the generalizations of the Crewther relation School PARTICLES AND ACCELERATORS Abstract: The structure of the beta-expanded representations for the coefficients of the perturbative QCD series for the e^+e^-- annihilation Adler function and Bjorken polarized and Gross-Llewellyn Smith neutrino DIS sum rule is analysed. The product of the series for the Adler function and these Deep-inelastic scattering sum rules obeys the generalized Crewther relation, which reflects the manifestation pf the proportional to the RG Beta-function conformal symmetry breaking perturbative contribution into the amplitide of pi- gamma gamma decay / The relation of the beta-expanded represntations for these series to proper treatm ... 14:00 - 15:00 Combinatorics and Computing Weekly Seminar Orthogonal signatures of graphs School MATHEMATICS ?A signed graph is a pair $G_{sigma}=(G?, sigma)$?, ?where $G$ is a simple graph and $sigma$?, ?called the signature?, ?is a function which assigns 1 or $-1$ to each edge of $G$?. ?We call $sigma$ as an it orthogonal signature of $G$ if? $A(G_{sigma})^2=D$?, ?where $A(G_{sigma})$ is the signed adjacency matrix of $G_{sigma}$ and $D$ is the diagonal matrix with vertex degrees on the diagonal?. ?We have shown that if $G$? has an orthogonal signature?, ?then $G$ should be regular?. ?Graphs with orthogonal signature were crucial in the proof of sensitivity conjecture by Huang in 2019?. ?Hunag used an orthogo ... |