Max results
Sort by Reverse order

Showing 10 of 10000 results

Date

Measurement of the B meson differential cross-sections in p anti-p collisions at S**(1/2) = 1.8-TeV using the exclusive decays B+- ---> J / psi K+- and B0 ---> J / psi K*0

The CDF collaboration
FERMILAB-CONF-94-141-E, 1994.
Inspire Record 374778 DOI 10.17182/hepdata.43064

None

4 data tables
Table 1

Charged B+ or B- meson cross section.

Table 2

Charged B+ or B- meson cross section.

Table 3

Neutral B0 or BBAR0 meson cross section.

More…

Beam flavor dependence in the hadroproduction of D+- and D(s)+- mesons

The E769 collaboration Wallace, A. ; Alves, G.A. ; Amato, S. ; et al.
FERMILAB-CONF-94-184-E, 1994.
Inspire Record 375038 DOI 10.17182/hepdata.43049

None

10 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

rivet Analysis
Measurement of the electromagnetic form-factor of the proton in the timelike region

Antonelli, A. ; Baldini, R. ; Bertani, M. ; et al.
Phys.Lett.B 334 (1994) 431-434, 1994.
Inspire Record 377833 DOI 10.17182/hepdata.28572

The cross section for the process e + e − → p p has been measured in the s range 3.6–5.9 GeV 2 by the FENICE experiment at the e + e − Adone storage ring and the proton electromagnetic form factor has been extracted.

2 data tables
Table 1

Cross section measurement.

Table 2

Proton form-factor measurement.


Measurement of the polarization of Lambda0, anti-Lambda0, Sigma+ and Xi- produced in a Sigma- beam of 330-GeV/c

The WA89 collaboration Adamovich, M.I. ; Albertson, E. ; Alexandrov, Yu. A. ; et al.
Z.Phys.A 350 (1995) 379-386, 1995.
Inspire Record 375458 DOI 10.17182/hepdata.48194

The polarization of Lambda0, AntiLambda0, Sigma+ and Xi- inclusively produced in Sigma- induced interactions at 330 GeV has been measured in the experiment WA89 at CERN. This is the first measurement of polarization of baryons produced by a hyperon beam. No polarization of AntiLambda is observed, as was also the case in proton beam data. At transverse momenta of about 1GeV/c Lambda0 and Sigma+ show little polarization, significantly lower than in the proton beam data, while Xi- have a polarization comparable to the polarization of Lambda0 produced in proton beams.

3 data tables
Table 1

Target Consisted of a copper and a carbon block arranged side by side.

Table 2

Target Consisted of a copper and a carbon block arranged side by side.

Table 3

Target Consisted of a copper and a carbon block arranged side by side.


Single spin asymmetries and invariant cross-sections of the high transverse momentum inclusive pi0 production in 200-GeV/c p p and anti-p p interactions

The FNAL E704 collaboration Adams, D.L. ; Akchurin, N. ; Belikov, N.I. ; et al.
Phys.Rev.D 53 (1996) 4747-4755, 1996.
Inspire Record 382392 DOI 10.17182/hepdata.40544

The π0 inclusive and semi-inclusive, single-spin asymmetries have been measured using transversely polarized, 200-GeV/c proton and antiproton beams colliding with an unpolarized hydrogen target. The measured asymmetries are consistent with zero within the experimental uncertainties for the kinematic region -0.15

3 data tables
Table 1

No description provided.

Table 2

Pure inclusive reaction.

Table 3

Semi-inclusive reaction where at least on associated charged particle is produced at (180+-30) degrees relative to the pi0.


Rapidity distributions of protons in (p, d, alpha, C) C interactions at 4.2-GeV/c per nucleon

Bekmirzaev, R.N. ; Kladnitskaya, E.N. ; Muminov, M.M. ; et al.
Phys.Atom.Nucl. 58 (1995) 1548-1554, 1995.
Inspire Record 382325 DOI 10.17182/hepdata.38665

None

7 data tables
Table 1

ASYM is defined as follows: ASYM = (SIG(YRAP(P=3,RF=LAB)<1.1) - (SIG(YRAP(P=3,RF=LAB)>1.1)) / (SIG(YRAP(P=3,RF=LAB)<1.1)+ SIG(YRAP(P=3,RF=LAB)>1.1)).

Table 2

ASYM is defined as follows: ASYM = (SIG(YRAP(P=3,RF=LAB)<1.1) - (SIG(YRAP( P=3,RF=LAB)>1.1)) / (SIG(YRAP(P=3,RF=LAB)<1.1)+SIG(YRAP(P=3,RF=LAB)>1.1)).

Table 3

ASYM is defined as follows: ASYM = (SIG(YRAP(P=3,RF=LAB)<1.1) - (SIG(YRAP( P=3,RF=LAB)>1.1)) / (SIG(YRAP(P=3,RF=LAB)<1.1)+SIG(YRAP(P=3,RF=LAB)>1.1)).

More…

Transverse momentum compensation in pi+ p interactions at 250-GeV/c

The EHS/NA22 collaboration Agababyan, N.M. ; Ajinenko, I.V. ; Białkowska, H. ; et al.
Z.Phys.C 64 (1994) 381-390, 1994.
Inspire Record 376919 DOI 10.17182/hepdata.41987

Compensation of transverse momentum is studied in π+p interactions at 250 GeV/c. SignificantpT-transfer is found between c.m.s. hemispheres. With respect to the beam axis transverse momentum is compensated over the whole event, with respect to the sphericity axis mainly within one hemisphere. The highestpT in the event is mainly compensated by increased multiplicity. The QGSM and FRITIOF models qualitatively reproduce these effects, but important differences are observed.

3 data tables
Table 1

Mean value of total transverse VECTOR defined as sum over all charged particles in the forward or backward hemispheres was measured.

Table 2

Mean value of total transverse VECTOR defined as sum over all charged particles in the forward or backward hemispheres was measured.

Table 3

No description provided.


Core excited states of Lambda C-12 hypernuclei formed in the (pi+ K+ reaction)

Hasegawa, T. ; Hashimoto, O. ; Homma, S. ; et al.
Phys.Rev.Lett. 74 (1995) 224-227, 1995.
Inspire Record 375030 DOI 10.17182/hepdata.19657

A spectroscopic study of the CΛ12 hypernucleus by the (π+, K+) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the s and p orbitals of a Λ hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the C11 excited core and a Λ hyperon in the s orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the ΛN interaction.

1 data table
Table 1

No description provided.


A Precision measurement of the prompt photon cross-section in p anti-p collisions at S**(1/2) = 1.8-TeV

The CDF collaboration Abe, F. ; Albrow, M.G. ; Amidei, D. ; et al.
Phys.Rev.Lett. 73 (1994) 2662-2666, 1994.
Inspire Record 375582 DOI 10.17182/hepdata.19680

A prompt photon cross section measurement from the Collider Detector at Fermilab experiment is presented. Detector and trigger upgrades, as well as 6 times the integrated luminosity compared with our previous publication, have contributed to a much more precise measurement and extended PT range. As before, QCD calculations agree qualitatively with the measured cross section, but the data has a steeper slope than the calculations.

1 data table
Table 1

Note that the sytematic uncertainties are approximately 100 pct correlated bin to bin.


Inclusive pi0 production in p C and p Cu interactions at 4.5-GeV/c

Abraamian, Kh.U. ; Izyurov, V.M. ; Kozhin, M.A. ; et al.
Phys.Atom.Nucl. 59 (1996) 252-256, 1996.
Inspire Record 382328 DOI 10.17182/hepdata.17174

None

1 data table
Table 1

THE CROSS SECTION HAS BEEN FITTED BY THE FORMULA: D(SIG)/D(PT**2)= CONST*EXP(-SLOPE*PT**2).