output
19912026
most citedThe automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations

7.9k citations

Showing 1998 · hep-phShow all

47 papers · 2 filters

hep-ph1998★ 87 cited

Model-Independent Analysis of B -> pi K Decays and Bounds on the Weak Phase gamma

Matthias Neubert

A general parametrization of the amplitudes for the rare two-body decays B -> pi K is introduced, which makes maximal use of theoretical constraints arising from flavour symmetries…

hep-ph1998★ 20 cited

Semi-Exclusive Processes: New Probes of Hadron Structure

S. J. Brodsky, M. Diehl, P. Hoyer +1

We define and study hard ``semi-exclusive'' processes of the form which are characterized by a large momentum transfer between the particles and and a large…

hep-ph1998★ 66 cited

A Generalised Area Law for Hadronic String Reinteractions

Johan Rathsman

A new model for hadronic string reinteractions based on a generalised area law is presented. The model describes both the hadronic final states in annihilation and the dif…

hep-ph1998★ 474 cited

Neutrino Masses from Large Extra Dimensions

Nima Arkani-Hamed, Savas Dimopoulos, Gia Dvali +1

Recently it was proposed that the standard model (SM) degrees of freedom reside on a -dimensional wall or ``3-brane'' embedded in a higher-dimensional spacetime. Furthermore…

hep-ph1998★ 105 cited

New origin for approximate symmetries from distant breaking in extra dimensions

Nima Arkani-Hamed, Savas Dimopoulos

The recently proposed theories with TeV-scale quantum gravity remove the usual ultraviolet desert between GeV where effective field theory ideas apply. Cons…

hep-ph1998★ 22 cited

Illuminating dark matter and primordial black holes with interstellar antiprotons

James D. Wells, Alexander Moiseev, Jonathan F. Ormes

Interstellar antiproton fluxes can arise from dark matter annihilating or decaying into quarks or gluons that subsequently fragment into antiprotons. Evaporation of primordial blac…

hep-ph1998★ 116 cited

(S)neutrino properties in R-parity violating supersymmetry: I. CP-conserving Phenomena

Yuval Grossman, Howard E. Haber

R-parity-violating supersymmetry (with a conserved baryon number B) provides a framework for particle physics with lepton number (L) violating interactions. We examine in detail th…

hep-ph1998★ 94 cited

Top-Charm Associated Production in High Energy Collisions

Tao Han, JoAnne L. Hewett

The possibility of exploring the flavor changing neutral current couplings in the production vertex for the reaction $\epem\to t\bar c + \bar tc$ is examined. Using a mod…

hep-ph1998★ 26 cited

Distinguishing Indirect Signatures of New Physics at the NLC: Z' Versus R-Parity Violation

Thomas G. Rizzo

R-parity violation and extensions of the Standard Model gauge structure offer two non-minimal realizations of supersymmetry at low energies that can lead to similar new physics sig…

hep-ph1998★ 412 cited

Indirect Collider Signals for Extra Dimensions

J. L. Hewett

A recent suggestion that quantum gravity may become strong near the weak scale has several testable consequences. In addition to probing for the new large (submillimeter) extra dim…

hep-ph1998★ 379 cited

Collider Signatures of New Large Space Dimensions

Eugene A. Mirabelli, Maxim Perelstein, Michael E. Peskin

Recently, Arkani-Hamed, Dimopoulos, and Dvali have proposed that there are extra compact dimensions of space, accessible to gravity but not to ordinary matter, which could be macro…

hep-ph1998★ 11 cited

Testing QCD with Hypothetical Tau Leptons

S. J. Brodsky, J. R. Pelaez, N. Toumbas

We construct new tests of perturbative QCD by considering a hypothetical tau lepton of arbitrary mass, which decays hadronically through the electromagnetic current. We can explici…

hep-ph1998★ 2 cited

Possible Origin of Fermion Chirality and Gut Structure From Extra Dimensions

Guy F. de Teramond

The fundamental chiral nature of the observed quarks and leptons and the emergence of the gauge group itself are most puzzling aspects of the standard model. Starting from general…

hep-ph1998★ 63 cited

Can lepton flavor violating interactions explain the LSND results?

Sven Bergmann, Yuval Grossman

If the atmospheric and the solar neutrino problem are both explained by neutrino oscillations, and if there are only three light neutrinos, then all mass-squared differences betwee…

hep-ph1998★ 73 cited

Combining CP Asymmetries in Decays

Michael Gronau, Jonathan L. Rosner

We prove an approximate relation, to leading order in dominant terms, between CP-violating rate differences in and . We s…

hep-ph1998★ 64 cited

Large Mixing and Large Hierarchy Between Neutrinos with Abelian Flavor Symmetries

Yuval Grossman, Yosef Nir, Yael Shadmi

The experimental data on atmospheric and solar neutrinos suggest that there is near-maximal mixing between ν_μand ν_τbut that their masses are hierarchically separated. In models o…

hep-ph1998★ 32 cited

Higgs boson interactions in supersymmetric theories with large tan beta

Will Loinaz, James D. Wells

We show that radiative corrections to the Higgs potential in supersymmetric theories with large tan beta generically lead to large differences in the light Higgs boson decay branch…

hep-ph1998★ 2.4k cited

Phenomenology, Astrophysics and Cosmology of Theories with Sub-Millimeter Dimensions and TeV Scale Quantum Gravity

Nima Arkani-Hamed, Savas Dimopoulos, Gia Dvali

We recently proposed a solution to the hierarchy problem not relying on low-energy supersymmetry or technicolor. Instead, the problem is nullified by bringing quantum gravity down…

hep-ph1998★ 35 cited

Nonperturbative renormalization and the electron's anomalous moment in large-alpha QED

John R. Hiller, Stanley J. Brodsky

We study the physical electron in quantum electrodynamics expanded on the light-cone Fock space in order to address two problems: (1) the physics of the electron's anomalous magnet…

hep-ph1998★ 4 cited

The Hadronic Gas Chiral Phase Transition within Generalized Chiral Perturbation Theory

J. R. Pelaez

We study the temperature evolution of the quark-antiquark condensate below the chiral phase transition. The hadronic gas is described using a virial expansion within Generalized Ch…

hep-ph1998★ 28 cited

Chiral symmetry and the pion gas virial expansion

A. Dobado, J. R. Pelaez

In this work we study the thermodynamic properties of the pion gas starting from the realistic elastic scattering phase-shifts obtained from Chiral Perturbation Theory and using th…

hep-ph1998★ 105 cited

Exact Light-Cone Wavefunction Representation of Matrix Elements of Electroweak Current

S. J. Brodsky, D. S. Hwang

The matrix elements of electroweak currents which occur in exclusive decays of heavy hadrons are evaluated in the nonperturbative light-cone Fock representration. In general, each…

hep-ph1998★ 55 cited

Light active and sterile neutrinos from compositeness

Nima Arkani-Hamed, Yuval Grossman

Neutrinos can have naturally small Dirac masses if the Standard Model singlet right-handed neutrinos are light composite fermions. Theories which produce light composite fermions t…

hep-ph1998★ 121 cited

Gauge Kinetic Mixing and Leptophobic in and SO(10)

Thomas G. Rizzo

We examine the influence of gauge kinetic mixing on the couplings of a TeV scale in both and SO(10) models. The strength of such mixing, which arises due to the existenc…