(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image).Measurements of normalised cross sections for the production of photons and neutrons at very small angles with respect to ...the proton beam direction in deep-inelastic ... scattering at HERA are presented as a function of the Feynman variable ... and of the centre-of-mass energy of the virtual photon-proton system ... The data are taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated luminosity of ... The measurement is restricted to photons and neutrons in the pseudorapidity range ... and covers the range of negative four momentum transfer squared at the positron vertex ... GeV..., of inelasticity ... and of ...GeV. To test the Feynman scaling hypothesis the ... dependence of the ... dependent cross sections is investigated. Predictions of deep-inelastic scattering models and of models for hadronic interactions of high energy cosmic rays are compared to the measured cross sections.
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image).Inclusive ... double differential cross sections for neutral current deep inelastic scattering are measured with the H1 ...detector at HERA. The data were taken with a lepton beam energy of ... GeV and two proton beam energies of ... and 575 GeV corresponding to centre-of-mass energies of 225 and 252 GeV, respectively. The measurements cover the region of ... for ... GeV... up to ... The measurements are used together with previously published H1 data at ... GeV and lower ... data at ..., ... and ... GeV to extract the longitudinal proton structure function ... in the region ... GeV...
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Inclusive jet, dijet and trijet differential cross sections are measured in neutral current deep-inelastic scattering for exchanged boson virtualities ... using the H1 detector at HERA. The data were ...taken in the years 2003 to 2007 and correspond to an integrated luminosity of ... Double differential Jet cross sections are obtained using a regularised unfolding procedure. They are presented as a function of ... and the transverse momentum of the jet, ..., and as a function of ... and the proton's longitudinal momentum fraction, ..., carried by the parton participating in the hard interaction. In addition normalised double differential jet cross sections are measured as the ratio of the jet cross sections to the inclusive neutral current cross sections in the respective ... bins of the jet measurements. Compared to earlier work, the measurements benefit from an improved reconstruction and calibration of the hadronic final state. The cross sections are compared to perturbative QCD calculations in next-to-leading order and are used to determine the running coupling and the value of the strong coupling constant as ...
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image) Inclusive ... double differential cross sections for neutral current deep inelastic scattering are measured with the H1 ...detector at HERA. The data were taken with a lepton beam energy of ... GeV and two proton beam energies of ... and 575 GeV corresponding to centre-of-mass energies of 225 and 252 GeV, respectively. The measurements cover the region of ... for ... GeV... up to ... The measurements are used together with previously published H1 data at ... GeV and lower ... data at ..., ... and ... GeV to extract the longitudinal proton structure function ... in the region ... GeV...
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Inclusive ep double differential cross sections for neutral current deep inelastic scattering are measured with the H1 detector at HERA. The data were taken with a lepton beam energy of 27.6 GeV and ...two proton beam energies of Ep = 460 and 575 GeV corresponding to centre-of-mass energies of 225 and 252 GeV, respectively. The measurements cover the region of 6.5 *10^{-4}<=x<= 0.65 for 35<=Q^2<=800 GeV^2 up to y = 0.85. The measurements are used together with previously published H1 data at Ep = 920 GeV and lower Q2 data at Ep = 460, 575 and 920 GeV to extract the longitudinal proton structure function FL in the region 1.5<=Q^2 <=800 GeV^2.
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Inclusive production of D super() mesons in deep-inelastic ep scattering at HERA is studied in the range 5<Q super(2)<100 GeV super(2) of the photon virtuality and 0.02<y<0.7 of the inelasticity of ...the scattering process. The observed phase space for the D super() meson is p sub( )TD super())>1.25 GeV and | eta (D super())|<1.8. The data sample corresponds to an integrated luminosity of 348 pb super(-1) collected with the H1 detector. Single and double differential cross sections are measured and the charm contribution ${F_{2}c\bar{c}}}$ to the proton structure function F sub(2) is determined. The results are compared to perturbative QCD predictions at next-to-leading order implementing different schemes for the charm mass treatment and with Monte Carlo models based on leading order matrix elements with parton showers.
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
A measurement is presented of the inclusive neutral current e super( plus or minus ) p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with ...proton beam energies E sub( )pof 920, 575, and 460 GeV. The kinematic range of the measurement covers low absolute four-momentum transfers squared, 1.5 GeV super(2)<Q super(2)<120 GeV super(2), small values of Bjorken x, 2.910 super(-5)<x <0.01, and extends to high inelasticity up to y=0.85. The structure function F sub( )Lis measured by combining the new results with previously published H1 data at E sub( )p920 GeV and E sub( )p820 GeV. The new measurements are used to test several phenomenological and QCD models applicable in this low Q super(2) and low x kinematic domain.
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
This paper presents an ultra-low-power sub-1 V voltage reference circuit using a self-cascode technique to improve power supply rejection ratio (PSRR) for battery-powered applications. The proposed ...voltage reference circuit has been fabricated in 22 nm fully-depleted silicon-on-insulator (FDSOI) CMOS technology, and it occupies an active area of 0.0104 mm2. The measured average output voltage VREF from 12 samples at room temperature is 598 mV with a standard deviation of 0.37 %. The VREF shows measured average temperature coefficient TCavg of 61 ppm/∘C over the temperature range of -40 ∘C to 120 ∘C, line sensitivity of 0.12 %/V from 1.2 V to 1.8 V supply voltages, and measured PSRR of 66 dB at 10 Hz. A total power consumption is 45.6 nW from a 1.2 V supply voltage.
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