We report measurements of transverse momentum p{sub t} spectra for ten event multiplicity classes of p-p collisions at sqrt(s) = 200 GeV. By analyzing the multiplicity dependence we find that the ...spectrum shape can be decomposed into a part with amplitude proportional to multiplicity and described by a Levy distribution on transverse mass m{sub t}, and a part with amplitude proportional to multiplicity squared and described by a Gaussian distribution on transverse rapidity y{sub t}. The functional forms of the two parts are nearly independent of event multiplicity. The two parts can be identified with the soft and hard components of a two-component model of p-p collisions. This analysis then provides the first isolation of the hard component of the p{sub t} spectrum as a distribution of simple form on y{sub t}.
Phys.Rev.Lett.97:132301,2006 We report the measurements of $\Sigma (1385)$ and $\Lambda (1520)$ production
in $p+p$ and $Au+Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV from the STAR
collaboration. ...The yields and the $p_{T}$ spectra are presented and discussed
in terms of chemical and thermal freeze-out conditions and compared to model
predictions. Thermal and microscopic models do not adequately describe the
yields of all the resonances produced in central $Au+Au$ collisions. Our
results indicate that there may be a time-span between chemical and thermal
freeze-out during which elastic hadronic interactions occur.
We report measurements of transverse momentum $p_t$ spectra for ten event multiplicity classes of p-p collisions at $\sqrt{s} = 200$ GeV. By analyzing the multiplicity dependence we find that the ...spectrum shape can be decomposed into a part with amplitude proportional to multiplicity and described by a Lévy distribution on transverse mass $m_t$, and a part with amplitude proportional to multiplicity squared and described by a gaussian distribution on transverse rapidity $y_t$. The functional forms of the two parts are nearly independent of event multiplicity. The two parts can be identified with the soft and hard components of a two-component model of p-p collisions. This analysis then provides the first isolation of the hard component of the $p_t$ spectrum as a distribution of simple form on $y_t$.
We report the measurements of \(\Sigma (1385)\) and \(\Lambda (1520)\) production in \(p+p\) and \(Au+Au\) collisions at \(\sqrt{s_{NN}} = 200\) GeV from the STAR collaboration. The yields and the ...\(p_{T}\) spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central \(Au+Au\) collisions. Our results indicate that there may be a time-span between chemical and thermal freeze-out during which elastic hadronic interactions occur.
The Leon River watershed which drains into Lake Belton, a primary drinking water supply for central Texas residents, is being affected by high-density dairy production and manure management. Our ...objective was to apply the Soil and Water Assessment Tool (SWAT) model to evaluate its ability to simulate the hydrology of the Leon River watershed including water discharge from treatment facilities, reservoirs, and point sources. The 2005 version of SWAT (SWAT2005) was calibrated and verified using hydrologic data from the watershed. Runoff was simulated well (0.65 < E(NS) <or= 0.75 good) to very well (E(NS) > 0.75 very good) based on the Nash-Sutcliffe efficiency (E(NS)) value. Average streamflow simulations agreed well with observed values during the calibration phase (PBIAS < +/-10 very good), but the validation period agreement (PBIAS >or= +/- 25 unsatisfactory) was less than desired because one of the five validated stream gauges fell into the unsatisfactory range. These results demonstrate the rigor needed to calibrate and validate simulation models for the Conservation Effects Assessment Project, and although additional studies are needed, they also confirm that SWAT2005 can be an effective tool for evaluating the hydrology within the Leon River watershed.
Our patient's initial biopsy of the right fibula was diagnosed as Ewing's sarcoma and surgical amputation was suggested as the treatment of choice. After he refused, he was treated with chemotherapy ...and radiotherapy. The patient refused to continue this type of therapy after a 6 weeks' regimen. The supraorbital swelling occurred 3 years later and the biopsy of it also revealed Ewing's sarcoma, as did the mandibular specimen. The patient, again, refused any further treatment.
Metastasis to the mandible Amonett, M R; McGinnis, Jr, J P; Krolls, S O
Mississippi Dental Association journal,
1998, Letnik:
54, Številka:
2
Journal Article
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