T.J. Chapin

CCDC 223079: Experimental Crystal Structure Determination

Catherine Gaulon, R. DHAL, T.J. Chapin, V. Maisonneuve et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

CCDC 223078: Experimental Crystal Structure Determination

Catherine Gaulon, R. DHAL, T.J. Chapin, V. Maisonneuve et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

CCDC 223080: Experimental Crystal Structure Determination

Catherine Gaulon, R. DHAL, T.J. Chapin, V. Maisonneuve et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

Measurement ofp¯psingle diffraction dissociation at √s=546 and 1800 GeV

F. Abe, M. Albrow, D. Amidei, C. Anway-Wiese et autres

We report a measurement of the diffraction dissociation differential cross section ${\mathit{d}}^{2}$${\mathrm{\ensuremath{\sigma}}}_{\mathrm{SD}}$/${\mathit{dM}}^{2}$dt for p\ifmmode\bar\else\textasciimacron\fi{}p\ensuremath{\rightarrow}p\ifmmode\bar\else\textasciimacron\fi{}X at \ensuremath{\surd}s =546 and 1800 GeV, ${\mathit{M}}^{2}$/s0.2 and 0\ensuremath{\le}-t\ensuremath{\le}0.4 ${\mathrm{GeV}}^{2}$. Our results are compared to theoretical predictions and to extrapolations from experimental results at lower energies.

Measurement of the antiproton-proton total cross section at √s=546 and 1800 GeV

F. Abe, M. G. Albrow, D. Amidei, C. Anway-Wiese et autres

We report a measurement of the proton-antiproton total cross section ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$ at c.m.s. energies \ensuremath{\surd}s =546 and 1800 GeV. Using the luminosity-independent method, we find ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$=61.26\ifmmode\pm\else\textpm\fi{}0.93 mb at \ensuremath{\surd}s =546 GeV and 80.03\ifmmode\pm\else\textpm\fi{}2.24 mb at \ensuremath{\surd}s =1800 GeV. In this energy range, …

Measurement of small angle antiproton-proton elastic scattering at √s=546 and 1800 GeV

F. Abe, M. Albrow, D. Amidei, C. Anway-Wiese et autres

Antiproton-proton elastic scattering was measured at c.m.s. energies \ensuremath{\surd}s =546 and 1800 GeV in the range of four-momentum transfer squared 0.025-t0.29 ${\mathrm{GeV}}^{2}$. The data are well described by the exponential form ${\mathit{e}}^{\mathit{b}\mathit{t}}$ with a slope b=15.28\ifmmode\pm\else\textpm\fi{}0.58 (16.98\ifmmode\pm\else\textpm\fi{}0.25) ${\mathrm{GeV}}^{\mathrm{\ensuremath{-}}2}$ at \ensuremath{\surd}s =546 (1800) …

Measurement of QCD jet broadening in pp¯ collisions at s=1.8 TeV

F. Abe, D. Amidei, G. Apollinari, G. Ascoli et autres

A measurement of the QCD jet-broadening parameter $〈{Q}_{T}〉$ is described for high-${E}_{T}$ jet data in the central calorimeter of the Collider Detector at Fermilab. As an alternate approach to clustering analysis, this method involves the use of a global event parameter which …

A study of massive electron pairs and associated particles produced at the CERN ISR

A.L.S. Angelis, G. Basini, H.J. Besch, R.E. Breedon et autres

gb, ch, us (code pays fourni par la source)

Jet-fragmentation properties inp¯pcollisions at √s=1.8 TeV

F. Abe, D. Amidei, G. Apollinari, G. Ascoli et autres

The charged-particle fractional momentum distribution within jets, D(z), has been measured in dijet events from 1.8-TeV p\ifmmode\bar\else\textasciimacron\fi{}p collisions in the Collider Detector at Fermilab. As expected from scale breaking in quantum chromodynamics, the fragmentation function D(z) falls more steeply as dijet invariant …

The small angle spectrometer of CDF

S. Bertolucci, G. Chiarelli, M. Cordelli, P. Giromini et autres

it, us (code pays fourni par la source)

Pseudorapidity distributions of charged particles produced in p¯p interactions as s=630 and 1800 GeV

F. Abe, D. Amidei, G. Apollinari, G. Ascoli et autres

We present measurements of the pseudorapidity ($\ensuremath{\eta}$) distribution of charged particles ($\frac{d{N}_{\mathrm{ch}}}{d\ensuremath{\eta}}$) produced within $|\ensuremath{\eta}|\ensuremath{\le}3.5$ in proton-antiproton collisions at $\sqrt{s}$ of 630 and 1800 GeV. We measure $\frac{d{N}_{\mathrm{ch}}}{d\ensuremath{\eta}}$ at $\ensuremath{\eta}=0$ to be 3.18\ifmmode\pm\else\textpm\fi{}0.06(stat)\ifmmode\pm\else\textpm\fi{}0.10(syst) at 630 GeV, and 3.95\ifmmode\pm\else\textpm\fi{}0.03 (stat)\ifmmode\pm\else\textpm\fi{}0.13(syst) at 1800 GeV. …

jp, us, it (code pays fourni par la source)

Two-jet invariant0mass distribution at s=1.8 TeV

F. Abe, D. Amidei, G. Apollinari, G. Ascoli et autres

We present the dijet invariant-mass distribution in the region between 60 and 500 GeV, measured in 1.8-TeV $\overline{p}p$ collisions in the Collider Detector at Fermilab. Jets are restricted to the pseudorapidity interval $|\ensuremath{\eta}|<0.7$. Data are compared with QCD calculations; axigluons are excluded …

jp, us, it (code pays fourni par la source)