Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR4.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT3.8k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT3.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.6k papers
- Rutherford Appleton LaboratoryGB3.5k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.1k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR3k papers
- National and Kapodistrian University of AthensGR2.9k papers
- University of BolognaIT2.9k papers
165 papers · 1 filter
Dimensionally Regulated One-Loop Integrals
Z. Bern, L. Dixon, D. A. Kosower
We describe methods for evaluating one-loop integrals in $4-2\e$ dimensions. We give a recursion relation that expresses the scalar -point integral as a cyclicly symmetric combi…
Symmetry Breaking in the Double-Well Hermitian Matrix Models
Richard C. Brower, Nevidita Deo, Sanjay Jain +1
We study symmetry breaking in symmetric large matrix models. In the planar approximation for both the symmetric double-well model and the symmetric Penner model, we…
An Example of Semiclassical Instanton-Like Scattering: (1+1) Dimensional Sigma Model
V. A. Rubakov, D. T. Son, P. G. Tinyakov
A solution to the classical field equations in the massless (1+1)-dimensional O(3) sigma model is found, which describes a multi-particle instanton-like transition at high energy.…
Heavy Meson Masses in Chiral Perturbation Theory with Heavy Quark Symmetry
Elizabeth Jenkins
The and hyperfine mass splittings of mesons containing a single heavy quark are computed to one-loop order in chiral perturbation theory with heavy quark spin symmetry. Ele…
QCD Mass Inequalities in the Heavy Quark Limit
Zachary Guralnik, Aneesh V. Manohar
QCD inequalities are derived for the masses of mesons and baryons containing a single heavy quark using the heavy quark effective field theory. A rigorous lower bound is obtained f…
Incorporation of QCD Effects in Basic Corrections of the Electroweak Theory
Sergio Fanchiotti, Bernd Kniehl, Alberto Sirlin
We study the incorporation of QCD effects in the basic electroweak corrections \drcar, \drcarw, and \dr. They include perturbative \Ord{αα_s} contributions and threshold…
On amplitude zeros at threshold
E. N. Argyres, C. G. Papadopoulos, R. Kleiss
The occurrence of zeros of 2 to n amplitudes at threshold in scalar theories is studied. We find a differential equation for the scalar potential, which incorporates all known case…
New Topological Theories and Conjugacy Classes of the Weyl Group
Timothy J. Hollowood, J. Luis Miramontes
The problem of interpreting a set of -algebra constraints constructed in terms of an arbitrarily twisted scalar field as the recursion relations of a topological theory i…
A Comment on Duality Transformations and (Discrete) Gauge Symmetries in Four-Dimensional Strings
L. Ibanez, D. Luest
We discuss the relationship between target space modular invariance and discrete gauge symmetries in four-dimensional orbifold-like strings. First we derive the modular transformat…
Shedding light on quarkonium formation by producing a photon in association
K. Sridhar
The process AB --> Quarkonium + photon + X, for a heavy quarkonium state such as J/psi or Upsilon, is considered. The ratio of the cross-sections for this process in pp and pp(bar)…
Multiscalar production amplitudes beyond threshold
E. N. Argyres, C. G. Papadopoulos, R. Kleiss
We present exact tree-order amplitudes for , for final states containing one or two particles with non-zero three-momentum, for various interaction potentials. We show…
CPT Violation in String-Modified Quantum Mechanics and the Neutral Kaon System
J. Ellis, N. E. Mavromatos, D. V. Nanopoulos
We show that is in general violated in a non-quantum-mechanical way in the effective low-energy theory derived from string theory, as a result of apparent world-sheet charge…
Extended N=2 Superconformal Structure of Gravity and W-Gravity Coupled to Matter
M. Bershadsky, W. Lerche, D. Nemeschansky +1
We show that almost all string theories, including the bosonic string, the superstring and -string theories, possess a twisted N=2 superconformal symmetry. This enables us to es…
Exotic QQ\qbar\qbar States in QCD
Aneesh V. Manohar, Mark B. Wise
We show that QCD contains stable four-quark QQ\qbar\qbar hadronic states in the limit where the heavy quark mass goes to infinity. (Here Q denotes a heavy quark, \qbar a light anti…
One Loop Effects of Non-Standard Triple Gauge Boson Vertices
P. Hernandez, F. J. Vegas
Low energy effects of generic extensions of the Standard Model can be comprehensively parametrized in terms of higher dimensional effective operators. After the success of all the…
Chiral Perturbation Theory Analysis of the Baryon Magnetic Moments
Elizabeth Jenkins, Michael Luke, Aneesh V. Manohar +1
Nonanalytic and chiral corrections to the baryon magnetic moments are computed. The calculation includes contributions from both intermediate octet and dec…
Non Linear Realizations of in the MSSM: Model Independent Analysis and of Bosons
Sergio Ferrara, Antonio Masiero, Massimo Porrati
We perform a model-independent analysis of the spontaneously broken phase of an supersymmetric gauge theory, by using a non-linear parametrization of the Goldsto…
Singular Vectors and Topological Theories from Virasoro Constraints via the Kontsevich-Miwa Transform
B Gato-Rivera, A M Semikhatov
We use the Kontsevich-Miwa transform to relate the different pictures describing matter coupled to topological gravity in two dimensions: topological theories, Virasoro constraints…
Composition of Kinetic Momenta: The U_q(sl(2)) case
Daniel Arnaudon
The tensor products of (restricted and unrestricted) finite dimensional irreducible representations of $\uq$ are considered for a root of unity. They are decomposed into direct…
Topics in String Theory and Quantum Gravity
L. Alvarez-Gaume, M. A. Vazquez-Mozo
These lectures present a general critical assessment of various frameworks for quantum gravity, with particular emphasis on string theory. The topics discussed cover field-theoreti…
On the nature of the electroweak phase transition
J. R. Espinosa, M. Quiros, F. Zwirner
We discuss the finite-temperature effective potential of the Standard Model, $\veff$, with emphasis on the resummation of the most important infrared contributions. We compute the…
Flipped Heavy Neutrinos from the Solar Neutrino Problem to Baryogenesis
J. Ellis, D. V. Nanopoulos, K. Olive
We discuss baryogenesis using the flipped model for lepton mass matrices. We show that the generalized see-saw mechanism in this model can not only provide MSW neutrino mix…
Two--Loop Anomalous Dimension Matrix for Weak Non-Leptonic Decays II:
Andrzej J. Buras, Matthias Jamin, Markus E. Lautenbacher
We calculate the two--loop anomalous dimension matrix to order $\ord(α_e α_s)$ in the dimensional regularization scheme with anticommuting (NDR) which is necess…
The Two-Loop Anomalous Dimension Matrix for Weak Non-Leptonic Decays I:
Andrzej J. Buras, Matthias Jamin, Markus E. Lautenbacher +1
We calculate the two-loop anomalous dimension matrix involving current-current operators, QCD penguin operators, and electroweak penguin operator…