Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "HBT" wg kryterium: Temat


Tytuł:
How to model BEC numerically?
Autorzy:
Utyuzh, O.
Wilk, G.
Włodarczyk, Z.
Powiązania:
https://bibliotekanauki.pl/articles/147372.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
correlations
BEC
HBT
Opis:
A new method for numerical modelling of Bose-Einstein correlations observed in all kinds of multiparticle production processes is proposed.
Źródło:
Nukleonika; 2004, 49,suppl.2; 33-35
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of resonances on pion spectra and interferometry volume in relativistic heavy ion collisions
Autorzy:
Akkelin, S.
Borysova, M.
Sinyukov, Y.
Powiązania:
https://bibliotekanauki.pl/articles/146405.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
hydrodynamic evolution
HBT correlations
Opis:
The transverse spectra and interferometry volume of thermal pions in A+A collisions were estimated basing on the chemically frozen hydrodynamic evolution that incorporates the decays of resonances at the freeze-out stage. We found that the resonance decays could increase significantly the pion interferometry volume, while the pion spectra slopes are not affected much by the decays in the region up to transverse momentum 1 GeV. We also notice that in such a model the resonance contributions reduce the ratio of outward to sideward interferometry radii.
Źródło:
Nukleonika; 2004, 49,suppl.2; 115-118
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent developments in vertical MOSFETs and SiGe HBTs
Autorzy:
Hall, S.
Buiu, O.
Ashburn, P.
de Groot, K.
Powiązania:
https://bibliotekanauki.pl/articles/308031.pdf
Data publikacji:
2004
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
vertical MOSFET
HBT
SOI
Opis:
There is a well recognised need to introduce new materials and device architectures to Si technology to achieve the objectives set by the international roadmap. This paper summarises our work in two areas: vertical MOSFETs, which can allow increased current drive per unit area of Si chip and SiGe HBT's in silicon-on-insulator technology, which bring together and promise to extend the very high frequency performance of SiGe HBT's with SOI-CMOS.
Źródło:
Journal of Telecommunications and Information Technology; 2004, 1; 26-35
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CVD growth of high speed SiGe HBTs using SiH4
Autorzy:
Radamson, H.H.
Grahn, J.
Landgren, G.
Powiązania:
https://bibliotekanauki.pl/articles/309308.pdf
Data publikacji:
2000
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
SiGe
epitaxy
HBT
silane
Opis:
The growth of high frequency HBT structures using silane-based epitaxy has been studied. The integrity of SiGe layers in the base and the control of the collector profile using As- or P-doping grown at 650°C have been investigated. The results showed that the growth rate of SiGe layers has a strong effect on the evolution of defect density in the structure. Furthermore, B-doped SiGe layers have a higher thermal stability compared to undoped layers. The analysis of the collector profiles showed a higher incorporation of P in silane-based epitaxy compared to As. Meanwhile, the growth of As- or P-doped layers on the patterned substrates suffered from a high loading effect demanding an accurate calibration.
Źródło:
Journal of Telecommunications and Information Technology; 2000, 3-4; 10-14
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pion interferometry in Au+Au collisions at square root sNN = 200 GeV
Autorzy:
Noriega, M.
Powiązania:
https://bibliotekanauki.pl/articles/147466.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
STAR
RHIC
HBT
interferometry
pion
Opis:
We present preliminary results from a two-pion intensity interferometry analysis from Au+Au collisions at square root sNN = 200 GeV measured in the STAR detector at RHIC. The dependence of the apparent pion source on multiplicity and transverse momentum are discussed and compared with preliminary results from d+Au and p+p collisions at the same beam energy.
Źródło:
Nukleonika; 2004, 49,suppl.2; 67-70
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silicon-germanium for ULSI
Autorzy:
Hall, S.
Eccleston, B.
Powiązania:
https://bibliotekanauki.pl/articles/309304.pdf
Data publikacji:
2000
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
silicon-germanium
HBT
SiGe-CMOS
Opis:
The paper describes recent progress for the introduction of silicon-germanium, bipolar and field effect heterostructure transistors into mainstream integrated circuit application. Basic underlying concepts and device architectures which give rise to the desired performance advantages are described together with the latest state-of the-art results for HBT and MOSFET devices. The integration of such devices into viable HBT, BiCMOS and CMOS is reviewed. Other contributions that SiGe can make to enhance the performance of ULSI circuits are mentioned also.
Źródło:
Journal of Telecommunications and Information Technology; 2000, 3-4; 3-9
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A hint at quark deconfinement in 200 GeV Au+Au data at RHIC
Autorzy:
Csanád, M.
Csörgo, T.
Lörstad, B.
Ster, A.
Powiązania:
https://bibliotekanauki.pl/articles/147382.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Buda-Lund hydro spectra
HBT multiplicity
Opis:
We give the emission function of the axially symmetric Buda-Lund hydro model and present its simultaneous, high quality fits to identified particle spectra, two-particle Bose-Einstein or HBT correlations and charged particle pseudorapidity distributions as measured by BRAHMS and PHENIX in 0 30% central, square root sNN = 200 GeV Au+Au collisions at RHIC. The best fit is achieved when the most central region of the particle emitting volume is superheated to T0 = 200 š 9 MeV greater-than or equal to Tc = 172 š 3 MeV, a 3sigma effect.
Źródło:
Nukleonika; 2004, 49,suppl.2; 49-55
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Baryon-baryon correlations in Au+Au collisions at square root sNN = 62 GeV and square root sNN = 200 GeV, measured in the STAR experiment at RHIC
Autorzy:
Gos, H.
Powiązania:
https://bibliotekanauki.pl/articles/148348.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
baryon
correlations
HBT
interferometry
STAR
RHIC
Opis:
Particle correlations at small relative velocities can be used to study the space-time evolution of hot and expanding system created in heavy-ion collisions. Baryon and antibaryon source sizes extracted from baryon-baryon correlations complement the information deduced from the correlation studies of identical pions. Correlations of nonidentical particles are sensitive also to the space-time asymmetry of their emission. High statistics data set of STAR experiment allows us to present the results of baryon-baryon correlation measurements at various centralities and energies, as well as to take carefully into account the particle identification probability and the fraction of primary baryons and antibaryons. Preliminary results show significant contribution of annihilation channel in baryon-antibaryon correlations.
Źródło:
Nukleonika; 2006, 51,suppl.3; 59-63
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary results on direct photon-photon HBT measurements in square root sNN = 62.4 GeV and 200 GeV Au+Au collisions at RHIC
Autorzy:
Das, D.
Lin, G.
Chattopadhyay, S.
Chikanian, A.
Finch, E.
Nayak, T.
Panitkin, S.
Sandweiss, J.
Suaide, A.
Zhang, H.
Powiązania:
https://bibliotekanauki.pl/articles/148364.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
RHIC
HBT
interferometry
TPC
BEMC
photon
Opis:
We present the preliminary results on direct photon interferometry measurements in Au+Au collisions at square root sNN = 62.4 GeV and 200 GeV using the STAR (solenoidal tracker at RHIC) detector. Photons are reconstructed via e+/e- conversions in STAR Time Projection Chamber (TPC) and energy deposited by photons in STAR Barrel Electromagnetic Calorimeter (BEMC). The two-photon correlations are measured using (1) both photons measured with BEMC; (2) one photon from conversions and the other measured with BEMC. Both the methodologies and the possible constraints in the correlation function measurements are discussed.
Źródło:
Nukleonika; 2006, 51,suppl.3; 55-58
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of hard processes on momentum correlations in pp and p(anti)p collisions
Autorzy:
Paić, G.
Skowroński, P.
Powiązania:
https://bibliotekanauki.pl/articles/148457.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
HBT
correlations
proton-proton collisions
hadronization
Opis:
The HBT radii extracted in pp and pp collisions at SPS and Tevatron show a clear correlation with the charged particle rapidity density. We propose to explain the correlation using a simple model where the distance from the initial hard parton-parton scattering to the hadronization point depends on the energy of the partons emitted. Since the particle multiplicity is correlated with the mean energy of the partons produced we can explain the experimental observations without invoking scenarios that assume a thermal fireball. The model has been applied with success to the existing experimental data both in the magnitude and the intensity of the correlation. The model has also been extended to pp collisions at the LHC energy of 14 TeV. The possibilities of a better insight into the string spatial development using 3D HBT analysis are discussed.
Źródło:
Nukleonika; 2006, 51,suppl.3; 83-87
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Azimuthally-sensitive interferometry and the source lifetime at RHIC
Autorzy:
Lisa, M.
Powiązania:
https://bibliotekanauki.pl/articles/147422.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
interferometry
HBT
heavy-ion collisions
freeze-out
Opis:
Pion interferometry (HBT) measurements relative to the reaction plane provide an estimate of the transverse source anisotropy at freeze-out, which probes the system dynamics and evolution duration. Measurements by the STAR Collaboration indicate that the source is extended increasingly out-of-plane with increasing impact parameter, suggesting a short evolution duration roughly consistent with estimates based on azimuthally-integrated HBT measurements.
Źródło:
Nukleonika; 2004, 49,suppl.2; 71-76
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of hard processes on momentum correlations
Autorzy:
Paić, G.
Skowroński, P.
Tomašik, B.
Powiązania:
https://bibliotekanauki.pl/articles/147440.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
hard processes
jets
momentum correlations
HBT
LHC
ALICE
Opis:
The effect of hard processes to be encountered in HBT studies at the Large Hadron Collider (LHC) have been studied. A simple simulation has allowed us to generate momentum correlations involving jet particles as well as particles originating from the kinetic freeze-out and to compare them to a simple theoretical model which has been developed. The first results on the effect of hard processes on the correlation function for the case of jet quenching are presented.
Źródło:
Nukleonika; 2004, 49,suppl.2; 89-94
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of influence of particle identification in ALICE detectors and resonance decays on correlation functions
Autorzy:
Malinina, L.
Batyunya, B.
Zaporozhets, S.
Powiązania:
https://bibliotekanauki.pl/articles/147446.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
heavy-ion collisions
HBT
correlation function
particle identification
Opis:
The information about dynamics of the collective expansion of the source created in heavy ion collisions can be extracted by using intensity interferometry in different regions of rapidity and transverse momentum (pt). The study of different factors affecting the pt-dependence of the radii and the strength of the correlation is necessary and that is why we have studied the influence of the particle identification efficiency and the presence of the pions from resonance decays on (pi+,pi+) correlation function measured by ALICE experiment.
Źródło:
Nukleonika; 2004, 49,suppl.2; 99-102
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SiGe HBT wideband amplifier for millimeter wave applications
Autorzy:
Krcmar, M.
Noether, N.
Boeck, G.
Powiązania:
https://bibliotekanauki.pl/articles/307582.pdf
Data publikacji:
2007
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
wideband amplifier
HBT
SiGe
millimeter wave
bipolar integrated circuits
Opis:
A wideband amplifier up to 50 GHz has been implemented in a 0.25 žm, 200 GHz ft SiGe BiCMOS technology. Die size was 0.7×0.73 mm2. The two-stage design achieves more than 11 dB gain over the whole 20 to 50 GHz band. Gain maximum was 14.2 dB at 47.5 GHz. Noise figure was lower than 9 dB up to 34 GHz and a current of 30 mA was drawn from a 4 V supply. To the author's best knowledge this is the highest gain bandwidth product of a monolithic SiGe HBT amplifier ever reported.
Źródło:
Journal of Telecommunications and Information Technology; 2007, 1; 8-12
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling SiGe-base HBT using APSYS 2000 - a 2D simulator
Autorzy:
Linkowski, A.
Łukasiak, L.
Jakubowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/308023.pdf
Data publikacji:
2004
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
base transit time
cut-off frequency
HBT
SiGe-base
Opis:
The paper is devoted to optimization of SiGe-base HBT with respect to operation speed by means of numerical simulation. The influence of design parameters on f(T) is studied.
Źródło:
Journal of Telecommunications and Information Technology; 2004, 1; 36-38
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies