48,123 research outputs found
Mapping out the jet correlation landscape: a perspective from PHENIX experiment
This is a status report on where PHENIX stands in terms of mapping out the
landscape of jet correlation in , hadron species, . We discuss
separately high correlation results and low and intermediate
correlation results. The former is sensitive to the quenching of the jet by
medium, the later allows detailed study of the medium response to the (di-)jet.Comment: 25 pages, 21 figures, presented in IWCF2006, Nov. 21-24, Hangzhou,
Chin
Deprojection technique for galaxy cluster considering point spread function
We present a new method for the analysis of Abell 1835 observed by
XMM-Newton. The method is a combination of the Direct Demodulation technique
and deprojection. We eliminate the effects of the point spread function (PSF)
with the Direct Demodulation technique. We then use a traditional depro-jection
technique to study the properties of Abell 1835. Compared to that of
deprojection method only, the central electron density derived from this method
increases by 30%, while the temperature profile is similar.Comment: accepted for publication in Sciences in China -- G, the Black Hole
special issu
Finite volume corrections to the binding energy of the X(3872)
The quark mass dependence of hadrons is an important input for lattice
calculations. We investigate the light quark mass dependence of the binding
energy of the X(3872) in a finite box to next-to-leading order in an effective
field theory for the X(3872) with perturbative pions (XEFT). At this order, the
quark mass dependence is determined by a quark mass-dependent contact
interaction in addition to the one-pion exchange. While there is only a
moderate sensitivity to the light quark masses in the region up to twice their
physical value, the finite volume effects are significant already at box length
as large as 20 fm.Comment: 23 pages, 9 figures, REVTe
Cross-Correlation-Function-Based Multipath Mitigation Method for Sine-BOC Signals
Global Navigation Satellite Systems (GNSS) positioning accuracy indoor and urban canyons environments are greatly affected by multipath due to distortions in its autocorrelation function. In this paper, a cross-correlation function between the received sine phased Binary Offset Carrier (sine-BOC) modulation signal and the local signal is studied firstly, and a new multipath mitigation method based on cross-correlation function for sine-BOC signal is proposed. This method is implemented to create a cross-correlation function by designing the modulated symbols of the local signal. The theoretical analysis and simulation results indicate that the proposed method exhibits better multipath mitigation performance compared with the traditional Double Delta Correlator (DDC) techniques, especially the medium/long delay multipath signals, and it is also convenient and flexible to implement by using only one correlator, which is the case of low-cost mass-market receivers
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