Date

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$K^- p$ elastic scattering at 2.24 GeV/c

Dickinson, M. ; Miyashita, S. ; Libby, L.Marshall ; et al.
Phys.Lett. B24 (1967) 596-598, 1967.
Inspire Record 1389623 DOI 10.17182/hepdata.29569

The differential elastic scattering cross section for 2.24 GeV/ c K − p collisions has been measured in film from the Brookhaven 20″ bubble chamber. The total elastic cross section is found to be 6.2 ± 0.7 mb. The exponential dependence on square of the momentum t in (GeV/ c ) 2 is fitted by ( d σ d Ω elastic = (12.4 ± 1.0 mb/sr) exp (7.81 ± 0.25)t . A A fit to a black disc model requires a radius of 0.95 ± 0.05 fm.

1 data table

D(SIG)/D(T) was fitted to CONST*EXP(-SLOPE*T).


Measurement of the forward - backward asymmetry in $e^{+} e^{-} \to b \bar{b}$ and the $b$ quark branching ratio to muons at TRISTAN using neural networks

The AMY collaboration Ueno, K. ; Kanda, S. ; Olsen, S.L. ; et al.
Phys.Lett. B381 (1996) 365-371, 1996.
Inspire Record 418709 DOI 10.17182/hepdata.38513
1 data table

Multiplicity of charged secondaries emitted in association with neutral strange particles in anti-proton nucleus collisions at 40-GeV/c

Akhobadze, K.G. ; Grigalashvili, T.S. ; Chikovani, L.D. ; et al.
Phys.Atom.Nucl. 63 (2000) 834-838, 2000.
Inspire Record 533010 DOI 10.17182/hepdata.31228
24 data tables

No description provided.

No description provided.

No description provided.

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Search for violation in D$^0$ and D$^+$ decays

The FOCUS collaboration Link, J.M. ; Paolone, V.S. ; Reyes, M. ; et al.
Phys.Lett. B491 (2000) 232-239, 2000.
Inspire Record 527840 DOI 10.17182/hepdata.42984

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have measured the following CP asymmetry parameters: A_CP(K-K+pi+) = +0.006 +/- 0.011 +/- 0.005, A_CP(K-K+) = -0.001 +/- 0.022 +/- 0.015 and A_CP(pi-pi+) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.

3 data tables

All N-values corrected by efficiencies obtained from Monte-Carlo simulations. The CP asymmetry can be written as: ACP=(eta(D)-eta(DBAR))/(eta(D)+eta(DBAR)), where eta(Q=D+ KK)=(N(Q=D+ KK)/N(Q=D+ K) - N(Q=D- KK)/N(Q=D- K))/(N(Q=D+ KK)/N(Q=D+ K) + N(Q=D- KK)/N(Q=D- K)).

All N-values corrected by efficiencies obtained from Monte-Carlo simulations. The CP asymmetry can be written as: ACP=(eta(D)-eta(DBAR))/(eta(D)+eta(DBAR)), where eta(Q=D0 KK)=(N(Q=D0 KK)/N(Q=D0 K) - N(Q=DBAR0 KK)/N(Q=DBAR0 K))/(N(Q=D0 KK)/N(Q=D0 K) + N(Q=DBAR0 KK)/N(Q=DBAR0 K)).

All N-values corrected by efficiencies obtained from Monte-Carlo simulations. The CP asymmetry can be written as: ACP=(eta(D)-eta(DBAR))/(eta(D)+eta(DBAR)), where eta(Q=D0 PIPI)=(N(Q=D0 PIPI) - N(Q=DBAR0 PIPI))/(N(Q=D0 PIPI) + N(Q=DBAR0 PIPI)).


Charged particle productions at 90 degrees in the center-of-mass in very high energy proton proton collisions

Banner, M. ; Hamel, J.L. ; Pansart, J.P. ; et al.
Phys.Lett. B41 (1972) 547-551, 1972.
Inspire Record 85071 DOI 10.17182/hepdata.28219
3 data tables

The invariant cross section was fitted by CONST*EXP(-SLOPE*PT).

The invariant cross section was fitted by CONST*EXP(-SLOPE(C=1)*PT+SLOPE(C=2)*PT**2).

No description provided.


Measurements of |V(cb)|, form-factors and branching fractions in the decays anti-B0 ---> D*+ lepton- anti-lepton-neutrino and anti-B0 ---> D+ lepton- anti-lepton-neutrino

The ALEPH collaboration Buskulic, D. ; De Bonis, I. ; Decamp, D. ; et al.
Phys.Lett. B395 (1997) 373-387, 1997.
Inspire Record 425943 DOI 10.17182/hepdata.34082
3 data tables

The formfactors are evaluated at zero recoil of D meson. Two different methods are used (see text for details). VCB is the KCM matrix element. The formfactor fitted to dependence: FF(OM) = FF(1)*(1-CONST*(OM-1)).

VCB is the KCM matrix element.

VCB is the KCM matrix element.


Subthreshold K+ production in deuteron and alpha induced nuclear reactions

Debowsky, M. ; Senger, P. ; Boivin, M. ; et al.
No Journal Information, 1997.
Inspire Record 448262 DOI 10.17182/hepdata.31401

Double differential cross sections have been measured for pi+ and K+ emitted around midraidity in d+A and He+A collisions at a beam kinetic energy of 1.15 GeV/nucleon. The total pi+ yield increases by a factor of about 2 when using an alpha projectile instead of a deuteron whereas the K+ yield increases by a factor of about 4. According to transport calculations, the K+ enhancement depends both on the number of hadron-hadron collisions and on the energy available in those collisions: their center-of-mass energy increases with increasing number of projectile nucleons.

2 data tables

The spectra are fitted by the equation d3(sig)/d3(p) = CONST*exp(-Ekin/SLOPE), where Ekin is PI+ kinectic energy in the nucleon-nucleon center of mass frame.

The spectra are fitted by the equation d3(sig)/d3(p) = CONST*exp(-Ekin/SLOPE), where Ekin is K+ kinectic energy in the nucleon-nucleon center of mass frame.


Study of quasiexclusive neutral meson production in p N interactions at E(p) = 70-GeV in the deep fragmentation region

The SPHINX collaboration Golovkin, S.V. ; Kozhevnikov, A.P. ; Kubarovsky, V.P. ; et al.
Z.Phys. A359 (1997) 327-335, 1997.
Inspire Record 445405 DOI 10.17182/hepdata.40690
8 data tables

No description provided.

No description provided.

Data on the graph only.

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Inelastic Diffractive Scattering at FNAL Energies

Ayres, D.S. ; Diebold, Robert E. ; Cutts, D. ; et al.
Phys.Rev.Lett. 37 (1976) 1724, 1976.
Inspire Record 109174 DOI 10.17182/hepdata.21057
1 data table

Data from 140 GeV and 175 GeV are combined. The distributions are fit to CONST*(SLOPE(C=1)*T+SLOPE(C=2)*T**2).


Energy Dependence of the Pseudorapidity Distributions in Proton-Nucleus Collisions Between 50-GeV/c and 200-GeV/c.

Halliwell, C. ; Elias, J.E. ; Busza, W. ; et al.
Phys.Rev.Lett. 39 (1977) 1499-1502, 1977.
Inspire Record 123287 DOI 10.17182/hepdata.21004
1 data table

Three-dimensional avegage multiplicity distribution is parametrized to CONST(C=F)+CONST(C=G)*COL+CONST(C=H)*COL, where COL = A(N=NUCLEUS)*SIG(Q=P P)/SIG(Q=P NUCLEUS).


Normalized Small Y Cross-Sections for Neutrinos and anti-neutrinos at High-Energy

Barish, B.C. ; Bartlett, J.F. ; Bodek, A ; et al.
Phys.Rev.Lett. 39 (1977) 741, 1977.
Inspire Record 5717 DOI 10.17182/hepdata.50114
2 data tables

FE nucleus. The SIG/Enu is fitted to CONST(N=SIG)+CONST(N=T)*E.

FE nucleus. Averaged over the energies and beams.


Factorial and cumulant moments in e+ e- ---> hadrons at the Z0 resonance

The SLD collaboration Abe, K. ; Abt, I. ; Ahn, C.J. ; et al.
Phys.Lett. B371 (1996) 149-156, 1996.
Inspire Record 415576 DOI 10.17182/hepdata.41682

We present the first experimental study of the ratio of cumulant to factorial moments of the charged-particle multiplicity distribution in high-energy particle interactions, using hadronic Z$^0$ decays collected by the SLD experiment at SLAC. We find that this ratio, as a function of the moment-rank $q$, decreases sharply to a negative minimum at $q=5$, which is followed by quasi-oscillations. These features are insensitive to experimental systematic effects and are in qualitative agreement with expectations from next-to-next-to-leading-order perturbative QCD.

1 data table

CONST is the cumulant to factorial moments ratio. See text for definition.


Production of Multi - Pion Systems With Large Longitudinal Momentum at the {CERN} {ISR}

Lockman, William S. ; Meyer, T. ; Rander, J. ; et al.
Phys.Rev.Lett. 41 (1978) 680-683, 1978.
Inspire Record 6695 DOI 10.17182/hepdata.20814
2 data tables

The differential cross section is fitted by the equation : E*D3(SIG)/D3(P) = CONST*(1-XL)**POWER*EXP(-SLOPE*PT**2).

The differential cross section is fitted by the equation : E*D3(SIG)/D3(P) = CONST*(1-XL)**POWER*EXP(-SLOPE*PT**2).


Scaling Properties of High Mass Symmetric Hadron and Pion Pair Production in Proton - Beryllium Collisions

Jostlein, H. ; Engelmann, Roderich J. ; Fisk, R.J. ; et al.
Phys.Rev.Lett. 42 (1979) 146, 1979.
Inspire Record 132764 DOI 10.17182/hepdata.42603
2 data tables

E*D3(SIG)/D3(P) is fitted by CONST*(1-XT)**POWER*PT**POWER.

E1*E2*D6(SIG)/D3(P1)/D3(P2) is fitted by CONST*(1-XT)**POWER*PT**POWER, where PT is (pt1 + pt2)/2.


Determination of Triple Regge Couplings from a Study of the Reaction p p -> p X between 50-GeV and 400-GeV

Abe, K. ; De Lillo, T. ; Robinson, B. ; et al.
Phys.Rev.Lett. 31 (1973) 1530, 1973.
Inspire Record 82045 DOI 10.17182/hepdata.21356
2 data tables

The cross sections is fitted in the framework of the triple Regge model. The symbols P and R in the (C=...) denote pomeron and reggeon, respectively. For fit I and II the authors used conventional trajectories alpha(P) = 1 +0.25*T, alpha(R) = 0.5 + T. Fit II is restricted to data with (1 - M(P=4)**2/S) > 0.84. In fit III they use alpha(R) = 0.2 + T for the RRP term. Fit IV is like fit I with additional fixed (pion pion P) term.

The cross sections is fitted in the farmework of the triple Regge model. The symbols P and R in teh (C=...) denote pomeron and reggeon, respectively. CONST(C=C) and SLOPE are from the replacement of the RRP term by the exponential one : CONST(C=C)*(SLOPE*(1-x)). See text for detail.


MEASUREMENT OF P P $\to$ P $X$ BETWEEN 50-GEV/C AND 400-GEV/C.

Abe, K. ; De Lillo, T. ; Robinson, B. ; et al.
Phys.Rev.Lett. 31 (1973) 1527-1530, 1973.
Inspire Record 81796 DOI 10.17182/hepdata.50301
1 data table

The cross sections are fitted by the formula CONST(C=A)*EXP(SLOPE*T)*(1+CO NST(C=B)/SQRT(S)).


The Missing Mass Squared Dependence of the Average Charged Particle Multiplicity in the Reaction K+ p --> K0 X++ from 5-GeV/c-16-GeV/c

Chliapnikov, P.V. ; Gerdyukov, L.N. ; Minaev, N.G. ; et al.
Phys.Lett. B52 (1974) 375-380, 1974.
Inspire Record 90218 DOI 10.17182/hepdata.50028
1 data table

Two parametrizations are used for fitting of the mean multiplicity of the charged particles : MULT = CONST(C=A) + CONST(C=B)*LOG(M(P=4 5)**2/GEV**2) and MULT = CONST(C=ALPHA)**(M(P=4 5)**2/GEV**2)**POWER.


Production of chi charmonium via 300-GeV/c pion and proton interactions on a lithium target

The E705 collaboration Antoniazzi, L. ; Arenton, M. ; Cao, Z. ; et al.
Phys.Rev. D49 (1994) 543-546, 1994.
Inspire Record 354743 DOI 10.17182/hepdata.42541
3 data tables

The cross section per nucleon.

The cross section per nucleon. The differential cross section is fitted by the equation : D(SIG)/D(PT**2)= CONST*EXP(SLOPE*PT), D(SIG)/D(XL) = CONST*(1-(XL-CONST(C=X0))**2)**POWER(C=1) , and D(SIG)/D(XL) = CONST*(1-ABS(XL-CONST(C=XC)))**POWER(C=2).

The cross section per nucleon. The differential cross section is fitted by the equation : D(SIG)/D(COS(THETA)) = CONST*(1+CONST*COS(THETA)**2), where THETA is the angle between the MU+ and beam momentum in the CHI/C rest frame.


MEASUREMENTS OF D (SIGMA) DE (T) IN COLLISIONS OF LIGHT NUCLEI AT S(NN)**(1/2) = 31.5-GEV

The AXIAL FIELD SPECTROMETER collaboration Akesson, T. ; Albrow, M.G. ; Almehed, S. ; et al.
Phys.Lett. B231 (1989) 359-364, 1989.
Inspire Record 287781 DOI 10.17182/hepdata.29771
1 data table

The distributions are fitted D(SIG)/D(ET)=CONST*ET**POWER*EXP(-SLOPE*ET).


Search for Anti-proton - Nucleus States With ($\bar{p}$, $p$) Reactions

Garreta, D. ; Birien, P. ; Bruge, G. ; et al.
Phys.Lett. B150 (1985) 95-99, 1985.
Inspire Record 203156 DOI 10.17182/hepdata.49641
1 data table

Parameters resulting from the best fits to the proton spectra with the expression D2(SIG)/D(OMEGA)/D(E) = CONST*SQRT(E)*EXP(-E/SLOPE).


Measurement of the Single Jet Invariant Cross-section at {Fermilab}

The E609 collaboration Cormell, L.R. ; Arenton, M.W. ; Chen, H.F. ; et al.
Phys.Lett. B150 (1985) 322-326, 1985.
Inspire Record 206286 DOI 10.17182/hepdata.30447
1 data table

The invariant distribution is fitted to CONST*(1/PT**POWER)*(1-XT)**POWER.


Decay properties of tau leptons measured at the Z0 resonance

The L3 collaboration Adeva, B. ; Adriani, O. ; Aguilar-Benitez, M. ; et al.
Phys.Lett. B265 (1991) 451-461, 1991.
Inspire Record 318230 DOI 10.17182/hepdata.40873
1 data table

ALPHAS extracted from the ratio of the branching fractions.


Experimental study of the triple gluon vertex

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adami, F. ; et al.
Phys.Lett. B255 (1991) 466-476, 1991.
Inspire Record 301659 DOI 10.17182/hepdata.48514
1 data table

NC, CF, and TR are the color factors for SU(3) group.


Determination of the relative branching ratios for p anti-p ---> pi+ pi- and p anti-p ---> K+ K-

The CPLEAR collaboration Adler, R. ; Angelopoulos, A. ; Apostolakis, A. ; et al.
Phys.Lett. B267 (1991) 154-158, 1991.
Inspire Record 317491 DOI 10.17182/hepdata.48425
1 data table

CONST is the fraction of P-wave annihilation in gaseous hydrogen at pressu re of 15 bar. In the SIG/SIG the statistical and systematic errors are added qu adratically.


Transverse momentum of J / psi produced in oxygen uranium collisions at 200-GeV per nucleon.

The NA38 collaboration Baglin, C. ; Baldisseri, A. ; Bussiere, A. ; et al.
Phys.Lett. B251 (1990) 465-471, 1990.
Inspire Record 306053 DOI 10.17182/hepdata.29526
4 data tables

Two parametrization of the D(SIG)/D(PT) are used: first is : PT*exp(-SLOPE*PT**CONST(C=PT)) and second is : PT*exp(-2*MT/CONST(C=MT)).

D(SIG)/D(PT) is parameterized as PT*exp(-SLOPE*PT**CONST).

D(SIG)/D(PT) is parameterized as PT*exp(-SLOPE*PT**CONST).

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