Gamma Gamma, Neutrons Hyperon, Beam Experiment, M. Heidrich
Introduction The inclusive production of \Xi \Gamma --Hyperons in high energy collisions of different hadrons with target nuclei allows to study the role of the projectile valence quarks in the...
Measurement of Correlations between Pions from Different W's in (2007)
Correlations between pions from different Ws in e + e \Gamma !W + W \Gamma events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in 1996....
Measurement of the Partial Decay Width (2007)
Gamma Gamma, G. J. Barker, G. Borisov
The partial decay width of the Z to bb quark pairs has been measured by the DELPHI detector at LEP using data taken with the upgraded microvertex detector installed in spring 1994. B-hadrons,...
A Study of the Reaction (2007)
A study of the channel e + e \Gamma ! ¯ + ¯ \Gamma fl ISR , where fl ISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1995. The...
DELPHI data are analysed to obtain information on the behavior of longitudinal oe L and transversal oe T components of the cross section of inclusive hadron (h) production process e + e \Gamma...
A Search for Millisecond Pulsars at Galactic Latitudes (2007)
Gamma Gamma, D. J. Nice, J. H. Taylor
We have detected 12 new pulsars, including four of the short-period "recycled" variety, in a survey using the Arecibo radio telescope at 430 MHz. The survey covered 680 square degrees at...
Gamma Gamma, M. I. Adamovich, D. Barberis, M. Beck
Inclusive cross sections for \Xi \Gamma hyperon production in high-energy \Sigma \Gamma , ß \Gamma and neutron induced interactions were measured by the experiment WA89 at CERN. Secondary \Sigma...
Probing Exotic Higgs Sectors In (2007)
Introduction If the origin of electroweak symmetry breaking lies in the existence of a Higgs sector, understanding the full nature of this sector will be one of the primary goals of future...
Particle Correlations in (2007)
Gamma Gamma, P. Abreu, G. Barbiellini, A. De Angelis, Z. Metreveli, R. Moller
The correlation functions R for like-sign and unlike-sign particle pairs were measured for fully hadronic and for mixed decay WW channels using the data collected by the DELPHI detector at LEP at...
Final-State Interactions in (2007)
Gamma Gamma, M. Peter, Y. Sumino
We calculate final-state interaction corrections to the energy-angular distribution of l + in semi-leptonic top quark decay, where the parent top quark is produced via e + e \Gamma ! t ¯ t near...
Systematics Of Slepton Production In (2007)
Gamma Gamma, Michael E. Peskin
this paper. However, it is important to state that this ratio could have a wide range of values and must ultimately be determined experimentally. The eigenstates of the matrix (3) change...
Precision Supersymmetry Measurements At The (2007)
Introduction If supersymmetry (SUSY) is relevant for the hierarchy problem, the supersymmetric partners of ordinary particles should have masses on the order of TeV scale. The discovery of...
Measurement of the Cross Sections and Forward Backward Asymmetries for the Processes e (2007)
This note presents the di-muons and di-taus cross sections and forward-backward asymmetries measured during the 1996's run using the ALEPH detector. Two energy points are considered : 161 GeV...
Supersymmetry At Linear Colliders: The Importance Of Being (2007)
Introduction The possible role of supersymmetry (SUSY) in stabilizing the electroweak scale is cause for optimism in the search for SUSY at current and planned colliders. If SUSY is discovered,...
O(eV), as the allowed range for the axion mass is nominally 10 (1998)
Gamma Gamma, C. Hagmann, K. Van Bibber, L. J. Rosenberg
F32.02> GeV=fA ), the axionphoton coupling g Afl is not: g Afl = (ff=ßf A ) g fl , with g fl = (E=N \Gamma 1:92)=2, where E=N is a model-dependent number. It is noteworthy however, that two quite...
This document describes a new approach of the di-tau selection presented. The method is based on the identification of specific tau decay channel and on the estimation of their corresponding...
QCD Sum Rule Analysis of the Decays (1995)
Gamma Gamma, P. Colangelo, F. De Fazio, P. Santorelli, E. Scrimieri
We use QCD sum rules to calculate the hadronic matrix elements governing the rare decays B ! K` + ` \Gamma and B ! K ` + ` \Gamma induced by the flavour changing neutral current b ! s transition. We...