Sofia University

About: Sofia University is a education organization based out in Sofia, Bulgaria. It is known for research contribution in the topics: Large Hadron Collider & Laser. The organization has 8533 authors who have published 15730 publications receiving 306320 citations. The organization is also known as: University of Sofia & BFUS.

Measurement of Inclusive W and Z Boson Production Cross Sections in pp Collisions at √s = 8 TeV

Abstract: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).

Particles with an Undulated Contact Line at a Fluid Interface: Interaction between Capillary Quadrupoles and Rheology of Particulate Monolayers

Abstract: We consider solid particles attached to a liquid−fluid interface. If the solid−liquid−fluid contact line (at the particle surface) is undulated, the convex and concave local deviations of the meniscus shape from planarity can be treated as positive and negative capillary charges, which form capillary multipoles. Correspondingly, the meniscus shape can be expressed as a multipole expansion. The leading terms of the capillary multipole expansion turn out to be the charges and quadrupoles. In the present article, we derive theoretical expressions, which enable one to calculate the energy and force of interaction between two capillary quadrupoles for arbitrary interparticle distance. Depending on the amplitudes of the contact-line undulations, and on the particle mutual orientations, the interaction is either monotonic attraction or attraction at long distances but repulsion at short distances. As a rule, the interaction energy is much larger than the thermal energy kT, even for undulations of nanometer ampli...

Measurement of the Inclusive Jet Cross Section in pp Collisions at √s= 7 TeV

Abstract: The inclusive jet cross section is measured in pp collisions with a center-of-mass energy of 7 TeV at the LHC using the CMS experiment. The data sample corresponds to an integrated luminosity of 34 inverse picobarns. The measurement is made for jet transverse momenta in the range 18-1100 GeV and for absolute values of rapidity less than 3. The measured cross section extends to the highest values of jet pT ever observed and, within the experimental and theoretical uncertainties, is generally in agreement with next-to-leading-order perturbative QCD predictions.