Kernan, A.
[10.0, 100.0]
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Study of the Energy and Charged Multiplicity Dependence of Inclusive pi- Production in pi- p Interactions Up to Fermilab Energies

Morris, W. ; Oh, B.Y. ; Parker, D.L. ; et al.
Phys.Lett.B 56 (1975) 395-399, 1975.
Inspire Record 2113 DOI 10.17182/hepdata.27878

Using new data from 100 GeV c π − interactions, we find the energy dependence of the invariant cross-section in the target fragmentation (central) region to be consistent with an A + Bs − 1 2 (C + Ds − 1 4 ) behavior. The leading particle peak near x = + 1 exhibits a width in x which becomes smaller with increasing energy and an integrated cross section which is approximately energy independent.

1 data table
Table 1

No description provided.


Production of Nucleon Resonances by Single Diffraction Dissociation at the CERN ISR

Webb, R. ; Trilling, G. ; Telegdi, V. ; et al.
Phys.Lett.B 55 (1975) 331-335, 1975.
Inspire Record 91189 DOI 10.17182/hepdata.27915

The single diffraction dissociation process pp → (p π + π − )p has been studied at the CERN ISR at √ s = 45 GeV and 0.1 < − t < 0.6 GeV 2 . The reaction is dominated by nucleon resonance production: pp → pN (1520) and pp → pN(1688) with cross-sections (0.25 ± 0.08) mb and (0.56 ± 0.19) mb respectively.

2 data tables
Table 1

DIFFERENTIAL CROSS SECTIONS FOR THREE RANGES OF <P PI+ PI-> MASS.

Table 2

FROM BREIT-WIGNER PLUS BACKGROUND FITS. CORRECTIONS FOR OTHER DECAY MODES USE THE PDG 1974 TABLES FOR N(1520) AND N(1688).


$\rho^0$ Production in $\pi^- p$ Interactions at 100-{GeV}/$c$, 200-{GeV}/$c$ and 360-{GeV}/$c$

Higgins, P.D. ; Shephard, W.D. ; Biswas, N.N. ; et al.
Phys.Rev.D 19 (1979) 65, 1979.
Inspire Record 7275 DOI 10.17182/hepdata.4591

Inclusive and semi-inclusive cross sections for gp0 production in 100, 200, and 360 GeV/c π−p interactions are presented. Differential cross sections for ρ0 production as functions of c.m. rapidity and transverse momentum are compared with the corresponding differential cross sections for pion production. Effects of various methods of estimating background on the values obtained for ρ0 production cross sections are discussed. About 10% of the final-state charged pions appear to come from ρ0 decay. Thus, while ρ0 production and decay is a significant source of final-state pions, other sources must contribute the majority of the produced pions.

14 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Comparison of Inclusive Charged Pion Production in pi+- p Interactions at 100-GeV/c.

Whitmore, J. ; Oh, B.Y. ; Pratap, M. ; et al.
Phys.Rev.D 16 (1977) 3137-3149, 1977.
Inspire Record 123295 DOI 10.17182/hepdata.24482

Inclusive single-particle spectra for π± production are presented for data from π±p interactions at 100 GeV/c. The spectra for the four reactions π±p→π±+anything are compared as a function of laboratory longitudinal momentum, Feynman x, center-of-mass (c.m.) rapidity, and transverse momentum squared. Comparisons are also made between these data and analogous data from 16 and 18.5 GeV/c π±p interactions and the energy dependence is discussed. Average values of the transverse momentum are given as a function of the longitudinal momentum and charged-particle multiplicity. A comparison of the charge distributions is presented as a function of rapidity and c.m. energy.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Pi- p Interactions at 360-GeV/c: Measurement of the Total and Elastic Cross-Sections and the Charged Particle Multiplicity Distribution

Firestone, A. ; Anderson, E.W. ; Chang, V. ; et al.
Phys.Rev.D 14 (1976) 2902, 1976.
Inspire Record 3926 DOI 10.17182/hepdata.24670

In a sample of 108 563 pictures taken with the Fermilab 30-inch hydrogen bubble chamber, exposed to a 360-GeV/c π− beam, we have observed 19 453 interactions in a selected fiducial region. The observed charged multiplicity distribution has been corrected for the effects of scan efficiency, errors in prong count, missed close-in vees, secondary interactions, and neutron stars and for Dalitz pairs. The two-prong events have been corrected for losses at low −t. The total cross section is measured to be 25.25 ± 0.35 mb, and the elastic cross section is 3.61 ± 0.11 mb with an exponential slope of (8.82 ± 0.30) (GeV/c)−2. The average charged-particle multiplicity for inelastic events is 8.73 ± 0.04, and the second moment f2 is measured to be 9.83 ± 0.23.

2 data tables
Table 1

SYSTEMATIC CORRECTIONS INCLUDED IN ERRORS.

Table 2

FROM FIT, FORWARD D(SIG)/DT = 31.84 +- 0.68 MB/GEV**2, AND AGREES WITH OPTICAL POINT FROM MEASURED TOTAL CROSS SECTIONS.


Inclusive Production of $\pi^0$, $\K^0$(s), $\Lambda^0$, and Anti-lambda0 in 100-{GeV}/c, 200-{GeV}/c and 360-{GeV}/c $\pi^- p$ Interactions

Biswas, N.N. ; Higgins, P.D. ; Bishop, J.M. ; et al.
Nucl.Phys.B 167 (1980) 41-60, 1980.
Inspire Record 8802 DOI 10.17182/hepdata.34519

Inclusive cross sections for π 0 , K s 0 , Λ 0 and Λ 0 production in 100, 200 and 360 GeV /c π − p interactions are presented and compared with data at other energies. Invariant cross sections for γ, K s 0 , Λ 0 and Λ 0 production are presented in terms of Feynman x , the rapidity y , and transverse momentum squared, p T 2 . A comparison of the observed γ spectrum is made with the spectra computed assuming that the π 0 momentum distribution is identical to that of the observed π + or π − .

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Meson Resonance Production in p p Interactions at 53-GeV (Center-of-Mass) Energy

Boehm, A. ; VanDalen, Gordon J. ; Kernan, A. ; et al.
Phys.Rev.Lett. 41 (1978) 1761-1764, 1978.
Inspire Record 136909 DOI 10.17182/hepdata.3338

At the CERN intersecting storage ring the inclusive differential cross section [dσdσ]y=1 has been measured for f0, g0, K*0(1420), and K¯*0(1420) production: We obtain 0.58±0.05 mb, 0.09±0.05 mb, 38±15 μb, and 26±13 μb, respectively. The corresponding total inclusive cross sections are estimated to be 2.62±0.26 mb, 0.40±0.22 mb, 154±60 μb, and 107±52 μb, respectively. The magnitude of the K* cross section implies a cross section of approximately 5 μb for production of a charmed DD¯ pair.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


MESON RESONANCE PRODUCTION IN p p INTERACTIONS AT s**(1/2) OF 53-GeV

Alder, J.C. ; Block, M. ; Bohm, A. ; et al.
PRINT-78-0819 (CERN), 1978.
Inspire Record 131140 DOI 10.17182/hepdata.47305

None

1 data table
Table 1

No description provided.


Study of the Charge Exchange Reactions $\pi^- p \to (\pi^0$, $\eta$, $\eta^\prime$) $n$ at 63-{GeV}

The ACCMOR collaboration Daum, C. ; Hertzberger, L. ; Hoogland, W. ; et al.
Z.Phys.C 8 (1981) 95, 1981.
Inspire Record 156266 DOI 10.17182/hepdata.49658

None

4 data tables
Table 1

INCLUDING SYSTEMATIC ERRORS.

Table 2

STATISTICAL ERRORS ONLY.

Table 3

STATISTICAL ERRORS ONLY.

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rivet Analysis
Measurement of the tau polarisation at LEP.

The ALEPH collaboration Heister, A. ; Schael, S. ; Barate, R. ; et al.
Eur.Phys.J.C 20 (2001) 401-430, 2001.
Inspire Record 555653 DOI 10.17182/hepdata.49751

The polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \pm 0.0059$ which are consistent with the hypothesis of $e$-$\tau$ universality. Assuming universality, the value ${\cal A}_{e{-}\tau} = 0.1474 \pm 0.0045$ is obtained from which the effective weak mixing angle $\sin^2 {\theta_{\mathrm{W}}^{\mathrm{eff}}} =0.23147 \pm 0.00057 $ is derived.

1 data table
Table 1

No description provided.