Results 31 to 40 of about 6,315 (135)
The running of the electromagnetic coupling alpha in small-angle Bhabha scattering [PDF]
A method to determine the running of alpha from a measurement of small-angle Bhabha scattering is proposed and worked out. The method is suited to high statistics experiments at e+e- colliders, which are equipped with luminometers in the appropriate ...
102 +28 more
core +1 more source
An efficient and practical procedure for the synthesis of (E)-α,β-unsaturated amides incorporating α-aminophosphonates, derived from readily accessible phosphonoacetamides, via the Horner–Wadsworth–Emmons (HWE) reaction was developed.
Sindy Anahi Perez-Aniceto +4 more
doaj +1 more source
Predictions for Fermion Pair Production at e+e- Colliders [PDF]
We discuss the status and some ongoing upgrades of the ZFITTER program for applications at e+e- colliders LEP1/SLC, LEP2, GigaZ, and TESLA. The inclusion of top quark pair production is under work.Comment: 10 pages, 1 table, 2 figures, uses npb.sty, to ...
't Hooft +123 more
core +2 more sources
NJL interaction derived from QCD: vector and axial-vector mesons
In previous works effective non-local $SU(2)\times SU(2)$ NJL model was derived in the framework of the fundamental QCD. All the parameters of the model are expressed through QCD parameters: current light quark mass $m_0$ and average non-perturbative ...
B. A. ARBUZOV +6 more
core +1 more source
Ready access to six‐membered phosphorus heterocycles through copper‐catalyzed intramolecular hydrophosphorylation of ortho‐alkynyl secondary phosphine oxides is described. The reaction proceedes with high regio‐ and stereoselectivity. An atom‐economic copper‐catalyzed intramolecular hydrophosphorylation of ortho‐alkynyl secondary phosphine oxides ...
Hamdi Sanaa +3 more
wiley +1 more source
Two-loop QED Corrections to Bhabha Scattering
Recent developments in the calculation of the NNLO corrections to the Bhabha scattering differential cross section in pure QED are briefly reviewed and discussed.Comment: 5 pages, 4 figures, to appear in the proceedings of the 7th International ...
A. Ferroglia +55 more
core +2 more sources
Isomerized Conjugated Molecules as Hole‐Selective Contacts for Inverted Perovskite Solar Cells
A BTBT (benzothieno[3,2‐b]benzothiophene) isomeric derivative, (2‐(benzo[b]benzo[4,5]thieno[2,3‐d]thiophen‐4‐yl)ethyl)phosphonic acid (BTBT‐Z), is reported. BTBT‐Z adopts a zig‐zag configuration with a sulfur opposite to the anchoring group. This structure enhances its interaction with the perovskite layer, improving crystallization and thin‐film ...
Qingqing Liu +18 more
wiley +1 more source
W-propagator corrections to muon and tau leptonic decays
We derive the corrections induced by the W-boson propagator to the differential rates of the leptonic decay of a polarized muon and tau lepton. Results are presented both for decays inclusive of inner bremsstrahlung as well as for radiative ones, when a ...
Fael, M., Mercolli, L., Passera, M.
core +1 more source
Quaternionic structures, supertwistors and fundamental superspaces [PDF]
Superspace is considered as space of parameters of the supercoherent states defining the basis for oscillator-like unitary irreducible representations of the generalized superconformal group SU(2m,2n/2N) in the field of quaternions H.
Cirilo-Lombardo, Diego Julio +1 more
core +2 more sources
1,3‐Diazetidin‐2‐Ones: Synthetic Approaches and Therapeutic Promise within the Aza‐β‐Lactam Family
This review explores the synthesis, reactivity, and therapeutic potential of 1,3‐diazetidin‐2‐ones—an underexplored class of aza‐β‐lactams. Emphasis is placed on synthetic challenges, emerging methodologies, and their promise as β‐lactamase‐resistant scaffolds in medicinal chemistry. 1,3‐diazetidin‐2‐ones, overlooked members of the aza‐β‐lactam family,
Jozef Kristek, Jiří Pospíšil
wiley +1 more source

