Proton-proton scattering at 8.5 Bev

Seb, Do In ; Kirillova, L.F. ; Markov, P.K. ; et al.
Sov.Phys.JETP 14 (1962) 1243-1248, 1962.
Inspire Record 1393118 DOI 10.17182/hepdata.69762

None

2 data tables

No description provided.

No description provided.


Summary data on elastic $pp$ and $pd$ scattering at small angles and the real part of the $pn$-scattering amplitude in the energy interval 1-10 BeV

Dalkhazhav, N. ; Devinski, P.A. ; Zayachki, V.I. ; et al.
Sov.J.Nucl.Phys. 8 (1969) 196-202, 1969.
Inspire Record 1392874 DOI 10.17182/hepdata.69719

None

32 data tables

RE/IM MEASUREMENTS TAKEN FROM TABLE 1 OF KIRILLOVA 65.

TABLE 1 (REF. 1 ).

RE/IM MEASUREMENTS TAKEN FROM TABLE 1 OF KIRILLOVA 65.

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Proton-proton Elastic Scattering at 8.35 BeV

Seb, Do In ; Kirillova, L.F. ; Shafranova, M.G. ;
Sov.Phys.JETP 17 (1963) 1000-1003, 1963.
Inspire Record 1387687 DOI 10.17182/hepdata.69225

A more accurate value is obtained for the differential cross section for pp scattering at 8.35 BeV by measurement in photographic emulsions. It is found that the cross section is greater than cited in previous communications [ 3 - 5 ] in a large range of angles. The data are analyzed on the basis of the Regge pole technique and compared with those of other experiments. The total pp elastic scattering cross section is found to be 10.8 :1: 0.8 mb; the mean square interaction radius is (1.07 :1: 0.08) F.

2 data tables

No description provided.

No description provided.


Hard photon production and tests of QED at LEP

The L3 collaboration Acciarri, M. ; Achard, P. ; Adriani, O. ; et al.
Phys.Lett.B 475 (2000) 198-205, 2000.
Inspire Record 513397 DOI 10.17182/hepdata.48965

The total and differential cross sections of the process e+e- -> n gamma with n >= 2 are measured using data collected by the L3 experiment at centre-of-mass energies of \sqrt{s}=183 and 189 GeV. The results are in agreement with the Standard Model expectations. Limits are set on deviations from QED, contact interaction cut-off parameters and masses of excited electrons.

2 data tables

Measured cross section.

Measured differential cross sections corrected for efficiency and additional photons as a function of cos(theta) where theta is the polar angle of the event defined as. cos(theta)=ABS((sin(theta1-theta2)/2)/(sin(theta1+theta2)/2)).


Observation of multiple hard photon final states at s**(1/2) = 130-GeV to 140-GeV at LEP.

The L3 collaboration Acciarri, M. ; Adam, A. ; Adriani, O. ; et al.
Phys.Lett.B 384 (1996) 96006120 323-332, 1996.
Inspire Record 418664 DOI 10.17182/hepdata.47566

We have studied the process e<sup loc="post">+</sup>e<sup loc="post">−</sup> → nγ (n ≥ 2) at an average center-of-mass energy of 133 GeV using the L3 detector at LEP. For an integrated luminosity of 4.95 pb<sup loc="post">−1</sup> we find one γγγγ(γ) final state with only hard photons. The rates of both γγγ and γγ events are consistent with QED expectations. The cross section of the reaction e<sup loc="post">+</sup>e<sup loc="post">−</sup> → γγ(γ) in the polar range 16° &lt; θγ < 164° is measured to be 22.6 ± 2.2 pb. Decays into photons of narrow scalar resonances with masses between 90 and 130 GeV are not observed. The observation of the event with four energetic photons is consistent with QED although the kinematic configuration of the photons is atypical.

2 data tables

Cross section for process E+ E- --> GAMMA GAMMA (GAMMA) with two hard photons.Error is purely statistical, systematic effects are neglected.

No description provided.


Tests of QED at LEP energies using e+ e- --> gamma gamma (gamma) and e+ e- --> lepton+ lepton- gamma gamma

The L3 collaboration Acciarri, M. ; Adam, A. ; Adriani, O. ; et al.
Phys.Lett.B 353 (1995) 136-144, 1995.
Inspire Record 394354 DOI 10.17182/hepdata.47938

Total and differential cross sections for the process e + e − → γγ ( γ ), and the total cross section for the process e + e − → γγγ , are measured at energies around 91 GeV using the data collected with the L3 detector from 1991 to 1993. We set lower limits, at 95% CL, on a contact interaction energy scale parameter Λ > 602 GeV, on the mass of an excited electron m e ∗ >146 GeV and on the QED cut-off parameters Λ + > 149 GeV and Λ _ > 143 GeV. Upper limits are also set o branching fractions of Z decaying into γγ , π ° and ηγ of 5.2 × 10 −5 , 5.2 × 10 −5 and 7.6 × 10 −5 respectively. The reactions e + e − → ℓ + ℓ − nγ (ℓ = e , μ , τ ) are studied using the data collected from 1990 to 1994. The data are consistent with the QED expectations.

3 data tables

No description provided.

No description provided.

No description provided.


Anti-proton He-4 interactions at 200-MeV/c

Balestra, F. ; Batusov, Yu.A. ; Bendiscioli, G. ; et al.
Phys.Lett.B 305 (1993) 18-22, 1993.
Inspire Record 362745 DOI 10.17182/hepdata.28940

The differential cross sections for antiproton elastic scattering on 4 He at 192.8 MeV/ c are measured. The annihilation cross section σ a = (377.6 ± 8.0) mb, the elastic cross section σ el = (206.3 ± 6.6) mb and the total p 4 He interaction cross section σ tot = (583.9 ± 10.4) mb are determined. The ratio of the real to imaginary part of the forward p 4 He amplitude is found: π =−0.17± 0.33 0.24 . Partial wave analysis reveals that the S, P and D waves are essential in this energy region.

7 data tables

Charged prong multiplicity distributions in pbar HE annihilation.

Mean charged particle multiplicity in pbar HE4 annihilations.

No description provided.

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A Test of quantum electrodynamics in the reaction e+ e- ---> gamma gamma (gamma)

The L3 collaboration Adriani, O. ; Aguilar-Benitez, M. ; Ahlen, S. ; et al.
Phys.Lett.B 288 (1992) 404-411, 1992.
Inspire Record 336900 DOI 10.17182/hepdata.29221

We have measured the total and differential cross sections of the reaction e + e − → γγ ( γ ) at center-of-mass energies around 91 GeV, with an integrated luminosity of 14.2 pb −1 . The results are in good agreement with QED predictions. We set lower limits, at 95% confidence level, on the QED cutoff parameters of Λ + > 139 GeV, Λ − > 108 GeV and on the mass of an excited electron of m e∗ > 127 GeV . We searched for Z 0 rare decays with photonic signitures in the final state. Upper limits, at 95% confidence level, for branching ratio of Z 0 decaying into π 0 γ / γγ , νγ and γγγ are 1.2 × 10 −4 , 1.8 × 10 −4 , 3.3 × 10 −5 respectively.

3 data tables

Measured cross section for the 1991 data.

Measured cross section for the 1990 data.

Measured differential cross sections of combined 1990 and 1991 data.


Measurement of the pi0 pi0 cross-section in anti-p p annihilations at s**(1/2) = 3-GeV

The R704 collaboration Baglin, C. ; Baird, S. ; Bassompierre, G. ; et al.
Nucl.Phys.B 368 (1992) 175-189, 1992.
Inspire Record 334973 DOI 10.17182/hepdata.33012

Data collected in the experiment R704 at the CERN ISR are used to study the annihilation process p p → π 0 π 0 at several centre-of-mass energies between 2.97 and 3.56 GeV. A total sample of 7359 events has been identified, from which cross sections and angular distributions in the interval 0 < | cos θ ∗ | < 0.5 have been measured.

2 data tables

No description provided.

No description provided.


Elastic scattering of antiprotons by He-4 at 600-MeV/c.

Batusov, Yu.A. ; Bunyatov, S.A. ; Falomkin, I.V. ; et al.
Sov.J.Nucl.Phys. 52 (1990) 776-781, 1990.
Inspire Record 299081 DOI 10.17182/hepdata.47306

None

2 data tables

No description provided.

No description provided.


Precision Measurements of the Anti-proton - Proton Elastic Scattering Cross-section at 90-degrees in the Incident Momentum Range Between 3.5-{GeV}/$c$ and 5.7-{GeV}/$c$

The R704 collaboration Baglin, C. ; Baird, S. ; Bassompierre, G. ; et al.
Phys.Lett.B 225 (1989) 296-300, 1989.
Inspire Record 278760 DOI 10.17182/hepdata.29802

The high antiproton-proton luminosity obtained by using a target system consisting of a hydrogen gas-jet crossing a coasting beam of cooled antiproton circulating in one of the rings of CERN's ISR provides the possibility to measure low cross section reactions with very high precision. We present measurements of the antiproton-proton elastic cross section at 90° CM at incident momenta between 3.5 GeV/ c and 5.7 GeV/ c . The precision of these measurements is much higher than previously reported results. The data show that the cross section of this reaction decreases faster than s −12 over this momentum range.

2 data tables

No description provided.

No description provided.


A Measurement of Electroweak Effects in the Reaction $e^+ e^- \to \tau^+ \tau^-$ at 35-{GeV} and 42.4-{GeV}

The TASSO collaboration Braunschweig, W. ; Gerhards, R. ; Kirschfink, F.J. ; et al.
Z.Phys.C 43 (1989) 549, 1989.
Inspire Record 277662 DOI 10.17182/hepdata.15454

We report on total cross section and forward backward charge asymmetry measurements of the reactione+e− → τ+τ− at centre of mass energies of 35.0 GeV and 42.4 GeV using the TASSO detector. Including previous data an analysis in terms of electroweak parameters of the standard model is presented, and lower limits on mass scale parameters of residual contact interactions are given. A combined analysis of electroweak couplings using all our results on leptonic reactionse+e−→l+l− has been performed.

3 data tables

No description provided.

No description provided.

No description provided.


A Measurement of Muon Pair Production in $e^+ e^-$ Annihilation at Center-of-mass Energies 35-{GeV} $\le \sqrt{s} \le$ 46.8-{GeV}

The TASSO collaboration Braunschweig, W. ; Gerhards, R. ; Kirschfink, F.J. ; et al.
Z.Phys.C 40 (1988) 163-170, 1988.
Inspire Record 261668 DOI 10.17182/hepdata.1897

The reactione+e−→µ+µ− has been studied at centre of mass energies between 35.0 and 46.8 GeV using the TASSO detector at PETRA. We present measurements of the forward-backward charge asymmetry (Aμμ) and cross section σμμ for this reaction at three energies. At 35.0 GeV we obtain a cross section relative to the QED prediction ofRμμ=σμμ/σo=0.932±0.018±0.044 andAμμ=(−10.6−2.3+2.2±0.5)%. At 38.3 GeV we findRμμ=0.951±0.072−0.057+0.063 andAμμ=(+1.7−8.6+8.5±0.5)%. At 43.6 GeV we measureRμμ=0.921±0.037±0.055 andAμμ=(−17.6−4.3+4.4±0.5)%. Our results are in good agreement with the predictions of the standard model. Including previous TASSO data we present improved determinations of muonic electroweak parameters. We also report on lower limits of possible contributions from contact interactions.

8 data tables

If only one error is given, this is the sum of the statistical and systematic errors in quadrature.

The data are corrected for 'reduced QED' radiative corrections. Statistical errors only.

The data are corrected for 'reduced QED' radiative corrections. Statistical errors only.

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ANTI-PROTON HE-4 ELASTIC SCATTERING AT 600-MEV/C. (IN RUSSIAN)

Batusov, Yu.A. ; Balestra, F. ; Barbieri, Riccardo ; et al.
DUBNA JINR - N7-88 (88,REC.FEB.89) 15-22, 1988.
Inspire Record 271237 DOI 10.17182/hepdata.9316

None

2 data tables

No description provided.

No description provided.


A Study of Bhabha Scattering at {PETRA} Energies

The TASSO collaboration Braunschweig, W. ; Gerhards, R. ; Kirschfink, F.J. ; et al.
Z.Phys.C 37 (1988) 171, 1988.
Inspire Record 249557 DOI 10.17182/hepdata.45173

We report on high statistics Bhabha scattering data taken with the TASSO experiment at PETRA at center of mass energies from 12 GeV to 46.8 GeV. We present an analysis in terms of electroweak parameters of the standard model, give limits on QED cut-off parameters and look for possible signs of compositeness.

7 data tables

Axis error includes +- 1/1 contribution (The overall uncertainty in the bin-to-bin polar acceptance due to shower corrections, trigger and reconstruction efficiencies was estimated to be less than 1% and was added in quadrature to the statistical errorsData have been corrected for qed radiative effects up to order alpha**3 (F.A.Berends, R.Kleiss, Nucl.Phys.B206(1983)61)//Weak radiative corrections have not yet been provided in a form of a Monte Carlo generator program, but are estimated to be negligible at PETRA energies (M.Bohm, A.Denner, W.Hollik, DESY-86-165)).

Axis error includes +- 1/1 contribution (The overall uncertainty in the bin-to-bin polar acceptance due to shower corrections, trigger and reconstruction efficiencies was estimated to be less than 1% and was added in quadrature to the statistical errorsData have been corrected for qed radiative effects up to order alpha**3 (F.A.Berends, R.Kleiss, Nucl.Phys.B206(1983)61)//Weak radiative corrections have not yet been provided in a form of a Monte Carlo generator program, but are estimated to be negligible at PETRA energies (M.Bohm, A.Denner, W.Hollik, DESY-86-165)).

Axis error includes +- 1/1 contribution (The overall uncertainty in the bin-to-bin polar acceptance due to shower corrections, trigger and reconstruction efficiencies was estimated to be less than 1% and was added in quadrature to the statistical errorsData have been corrected for qed radiative effects up to order alpha**3 (F.A.Berends, R.Kleiss, Nucl.Phys.B206(1983)61)//Weak radiative corrections have not yet been provided in a form of a Monte Carlo generator program, but are estimated to be negligible at PETRA energies (M.Bohm, A.Denner, W.Hollik, DESY-86-165)).

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The Production and Decay of Tau Leptons in $e^+ e^-$ Annihilation at {PETRA} Energies

The TASSO collaboration Althoff, M. ; Braunschweig, W. ; Kirschfink, F.J. ; et al.
Z.Phys.C 26 (1985) 521, 1985.
Inspire Record 205120 DOI 10.17182/hepdata.16121

We have observed τ pair production at average CM energies of 13.9, 22.3, 34.5 and 43.1 GeV. The cross-sections are consistent with QED, the cut off parameters beingΛ+>161 GeV andΛ−169 GeV (95% CL). The topological branching fraction of the τ to 1 charged particle,B1, is 0.847±0.011 (stat)−0.013+0.016(syst) and no decays to 5 charged particles were observed resulting inB5<0.007 (95% CL). Within the 3 charged track final stateB(τ−→π−π+π−v)/(B(τ−→π−π+π−v)+B(τ−→π−π+π−π0v))=0.37−0.20+0.35

2 data tables

No description provided.

No description provided.


Photon Pair Production by $e^+ e^-$ Annihilation and Search for Supersymmetric Photinos at Energies > 40-{GeV}

The TASSO collaboration Althoff, M. ; Braunschweig, W. ; Kirschfink, F.J. ; et al.
Z.Phys.C 26 (1984) 337, 1984.
Inspire Record 204486 DOI 10.17182/hepdata.16194

None

2 data tables

No description provided.

No description provided.


A MEASUREMENT OF pi+ p BACKWARD ELASTIC DIFFERENTIAL CROSS-SECTIONS FROM 1.282-GeV/c TO 2.472-GeV/c

Candlin, D.J. ; Lowe, D.C. ; Peach, K.J. ; et al.
Nucl.Phys.B 244 (1984) 23-56, 1984.
Inspire Record 201771 DOI 10.17182/hepdata.7101

New high-statistics measurements of π + p elastic scattering differential cross sections are presented at 30 momentum points between 1.282 and 2.472 GeV/ c , covering most of the angular distribution outside the forward diffractive peak. These data show significant disagreements at some momenta with previous high-statistics experiments and with current partial wave analyses.

30 data tables

No description provided.

No description provided.

No description provided.

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An Improved Measurement of Electroweak Couplings From $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \mu^+ \mu^-$

The TASSO collaboration Althoff, M. ; Braunschweig, W. ; Kirschfink, F.J. ; et al.
Z.Phys.C 22 (1984) 13, 1984.
Inspire Record 193787 DOI 10.17182/hepdata.2111

We present an analysis of electroweak leptonic couplings from high statistics experiments on Bhabha scattering and μ pair production at an energy of 34.5 GeV. The forward-backward charge asymmetry of the μ pairs was measured to be −0.098±0.023±0.005. The data were found to agree well with the standard theory of electroweak interaction giving sin2θW=0.27±0.07. The leptonic weak couplings were determined to begv=0.000±0.170 andgA=−0.481±0.055. The data were also used to investigate a class of composite models for leptons.

2 data tables

No description provided.

No description provided.


Differential Cross-section and Polarization for $\pi^+ p \to K^+ \Sigma^+$ at 26 Momenta Between 1.282-{GeV}/$c$ and 2.473-{GeV}/$c$

Candlin, D.J. ; Lowe, D.C. ; Peach, K.J. ; et al.
Nucl.Phys.B 226 (1983) 1, 1983.
Inspire Record 183213 DOI 10.17182/hepdata.8242

Differential cross sections and polarisations in the reaction π + p→K + Σ + have been measured using the Rutherford Multiparticle Spectrometer at NIMROD. Data are presented at 26 momentum points at approximately 50 MeV/ c intervals in the range 1.282 to 2.473 GeV/ c with an order of magnitude more events than previous experiments. Legendre polynomial expansion coefficients have also been determined.

5 data tables

ERRORS HAVE SYSTEMATIC AND STATISTICAL ERRORS FOLDED IN QUADRATURE. TYPICAL STATISTICAL ERRORS ARE 2 PCT OR LESS.

No description provided.

No description provided.

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Electroweak Coupling Constants in the Leptonic Reactions e+ e- ---> e+ e- and e+ e- ---> mu+ mu- and Search for Scalar Leptons

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 117 (1982) 365-371, 1982.
Inspire Record 178495 DOI 10.17182/hepdata.6669

A high statistics experiment was performed on Bhabha scattering at energies between 14 and 34 GeV. Good agreement with QED was observed. The combined data on Bhabha scattering and μ pair production were found to agree with the standard theory of electroweak interaction giving sin 2 θ = 0.27 −0.07 +0.06 . Assuming for the Z 0 mass a value of 90 GeV the leptonic weak coupling constants were determined to g V 2 = −0.04 ± 0.06 and g A 2 = 0.35 ± 0.09. A search for scalar leptons sets lower limits on the mass of scalar electrons of M s e > 16.6 GeV and of scalar muons of M s μ > 16.4 GeV.

2 data tables

No description provided.

No description provided.


Charge Asymmetry and Weak Interaction Effects in $e^+ e^- \to \mu^+ \mu^-$ and $e^+ e^- \to \tau^+ \tau^-$

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 110 (1982) 173-180, 1982.
Inspire Record 176719 DOI 10.17182/hepdata.6699

We have measured, at an average centre-of-mass energy of 34.22 GeV a forward-backward charge asymmetry in the reaction e + e − → μ + μ − of value −0.161 ± 0.032. This demonstrates the existence of an axial vector neutral current with coupling strength of g e a g μ a =0.53 ± 0.10. We have also obtained a limit on the vector coupling strength of g e v g μ v <0.12. The Weinberg angle is found to be sin 2 θ W =0.29 +0.09 −0.11 . From the reaction e + e − → τ + τ − we have found g e a g τ a <0.34, g e v g τ v <0.55.

7 data tables

No description provided.

No description provided.

No description provided.

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Nuclear Scattering of Deuterons at 4.3-{GeV}/$c$, 6.3-{GeV}/$c$ and 8.9-{GeV}/$c$

Azhgirei, L.S. ; Ignatenko, M.A. ; Ivanov, V.V. ; et al.
Sov.J.Nucl.Phys. 30 (1979) 818, 1979.
Inspire Record 141312 DOI 10.17182/hepdata.18336

None

6 data tables

No description provided.

No description provided.

No description provided.

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MOMENTUM SPECTRA OF SECONDARY PROTONS FROM p p, p d AND p C COLLISIONS AT 4.3-GeV/c, 6.3-GeV/c AND 8.9-GeV/c

Azhgirei, L.S. ; Alaverdian, G.B. ; Vzorov, I.K. ; et al.
Sov.J.Nucl.Phys. 28 (1978) 515, 1978.
Inspire Record 130758 DOI 10.17182/hepdata.18248

None

2 data tables

No description provided.

No description provided.


Inclusive Spectra of Fast Deuterons and Protons from Collisions of Deuterons of 6.3-GeV/c Momentum with H, D, V, Al and Bi Nuclei

Azhgirei, L.S. ; Vzorov, I.K. ; Zhmyrov, V.N. ; et al.
Yad.Fiz. 27 (1978) 1027-1038, 1978.
Inspire Record 135038 DOI 10.17182/hepdata.18287

None

4 data tables

No description provided.

No description provided.

No description provided.

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The Structure of the High Momentum Parts of the Deuteron Spectra from d d Collisions at 4.3-GeV/c, 6.3-GeV/c and 8.9-GeV/c

Azhgirei, L.S. ; Ignatenko, M.A. ; Ivanov, V.V ; et al.
Nucl.Phys.A 305 (1978) 397-403, 1978.
Inspire Record 135985 DOI 10.17182/hepdata.37086

The experimental data on d-d collisions at 4.3, 6.3 and 8.9 GeV/ c , exhibiting the two-peak structure in the high-momentum parts of the secondary deuteron spectra at momentum transfers | t | ≈ 0.4–0.8 (GeV/ c ) 2 , are presented. An analysis of the results in terms of the multiple nucleon-nucleon scattering model is given. Some conclusions about the mechanism of the elastic and quasielastic d-d scattering at the above-mentioned momentum transfers are made.

3 data tables

No description provided.

No description provided.

No description provided.


A Study of K0 p Charge Exchange Scattering from 0.6-GeV/c to 1.5-GeV/c

Armitage, J.C.M. ; Aston, D. ; Duerdoth, I.P. ; et al.
Nucl.Phys.B 123 (1977) 11-46, 1977.
Inspire Record 118913 DOI 10.17182/hepdata.35426

An experiment is described to measure the differential cross section for the charge-exchange reaction K 0 p → K + n from 0.6 to 1.5 GeV/ c incident kaon momentum in the angular range −0.65 < cos θ ∗ < 0.85 The calibration of the kaon beam by observation of K S 0 regeneration is also described. The differential cross sections are fitted with Legendre polynomials and compared with those from the time-reversed reaction using deuterium targets. Qualitative conclusions are drawn on the behaviour of particular charge-exchange amplitudes.

2 data tables

No description provided.

FITTED VALUES OF DIFFERENTIAL CROSS SECTION LEGENDRE COEFFICIENTS (4 TIMES USUAL DEFINITION).


Pi+ p elastic scattering between 0.6 and 0.8 gev/c

Bowler, M.G. ; Cashmore, R.J. ; Kaddoura, A. ;
Nucl.Phys.B 37 (1972) 133-160, 1972.
Inspire Record 75335 DOI 10.17182/hepdata.8085

In this paper we present the π + p differential elastic scattering cross sections at five momenta between 0.6 and 0.8 GeV/ c . The data were collected in a bubble chamber exposure and consequently are susceptible to different systematic errors from counter experiments. Our results are generally in good agreement with those of counter experiments in the same momentum range and with the predictions of the various elastic partial wave analyses. The majority of partial wave analyses do not however yield parameters which fit our data in detail without modification.

10 data tables

No description provided.

No description provided.

No description provided.

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Polarization in elastic pi- p scattering at 16 momenta between 865 and 2732 mev/c

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 37 (1972) 594-620, 1972.
Inspire Record 75295 DOI 10.17182/hepdata.8091

Polarization distributions and differential cross section data for elastic scattering of negative pions on protons between 865 and 2732 MeV/ c are presented. They are compared with published phase-shift analyses.

48 data tables

No description provided.

No description provided.

No description provided.

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Polarization in elastic anti-proton-proton scattering between 0.9 and 2.5 gev/c

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 37 (1972) 349-363, 1972.
Inspire Record 75332 DOI 10.17182/hepdata.32973

Polarization and differential cross-section data are presented for elastic scattering of antiprotons on polarized protons at eight momenta between 0.9 and 2.5 GeV/ c . The data are fitted with a diffraction model.

8 data tables

COMBINED 0.88 AND 0.95 GEV/C DATA.

COMBINED 1.00 AND 1.04 GEV/C DATA.

COMBINED 1.01 AND 1.055 GEV/C DATA.

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Elastic scattering of positive pions on polarized protons between 0.82 and 2.74 gev/c

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 25 (1970) 9-48, 1971.
Inspire Record 68844 DOI 10.17182/hepdata.7102

Polarization and differential cross-section data for elastic scattering of positive pions on protons between 0.82 and 2.74 GeV/ c are presented. A dip in the polarization, at constant u ≈ −0.65 GeV 2 , is observed. The data are compared with published phase-shift analyses.

96 data tables

No description provided.

No description provided.

No description provided.

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Asymmetry in the scattering of protons on polarized deuterons at 1.21 gev/c

Albrow, M.G. ; Borghini, M. ; Bosnjakovic, B. ; et al.
Phys.Lett.B 35 (1971) 247-251, 1971.
Inspire Record 69249 DOI 10.17182/hepdata.28476

By using a polarized deuteron target we have measured the asymmetry in the differential cross section for elastic scattering of protons on deuterons and for quasi-elastic scattering of protons on protons bound in deuterons between the two states of opposite polarization, normal to the scattering plane of the initial deuteron. The beam momentum was 1.21 GeV/ c . It is checked that the neutrons bound in the deuterons are polarized to approximately 20%.

2 data tables

NOT ALL DATA POINTS COMPILED.

Axis error includes +- 10/10 contribution (DS/DT DATA NORMALIZED TO THAT OF VINCENT 70).


New evidence for the p-11(1470) resonance in pi- p ---> n pi0 below 600 mev

Hauser, M.G. ; Chen, K.W. ; Crean, P.A. ;
Phys.Lett.B 35 (1971) 252-256, 1971.
Inspire Record 69248 DOI 10.17182/hepdata.28485

The differential cross section for π − p → n π o has been measured in detail from 150 to 600 MeV. The backward cross section has a previously unobserved dramatic dip at 425 MeV. We interpret this dip in terms of interference between the P 33 (1236) and the P 11 (1470) resonances. These data provide strong evidence for the adequacy of the phase shift solutions in this energy range.

116 data tables

SCALED TO AGREE WITH SOLUTION AT 225 MEV AND THEN INTERPOLATED.

SCALED TO AGREE WITH SOLUTION AT 225 MEV AND THEN INTERPOLATED.

SCALED TO AGREE WITH SOLUTION AT 225 MEV AND THEN INTERPOLATED.

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Elastic scattering of negative kaons on polarized protons between 865 and 1330 mev/c

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 29 (1971) 413-430, 1971.
Inspire Record 68634 DOI 10.17182/hepdata.33423

Polarization and differential cross-section data for elastic scattering of negative kaons on polarized protons between 865 and 1330 MeV/ c are presented. Comparisons are made with predictions given by published energy dependent phase-shift analyses. The Legendre expansion coefficients characterizing the polarization distributions show remarkable structures resulting from excitation of Λ- and Σ-resonances. An analysis of the elastic and charge-exchange data in this region of momenta supports the assignments of J P = 3 2 + for the Λ(1870) resonance. The occurence of zero crossings in the polarization data is discussed.

8 data tables

No description provided.

No description provided.

No description provided.

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Elastic scattering of positive kaons on polarized protons between 0.87 and 2.74 gev/c. results and phase-shift analysis

Albrow, M.G. ; Andersson-Almehed, S. ; Bosnjakovic, B. ; et al.
Nucl.Phys.B 30 (1971) 273-305, 1971.
Inspire Record 68610 DOI 10.17182/hepdata.33401

Polarization and differential cross-section data at 16 momenta between 0.86 and 2.74 GeV/ c are presented. (Preliminary data on some of the momenta have been published earlier.) In an energy-independent phase-shift analysis from threshold up to 2.5 GeV/ c , resonant-like as well as non-resonant solutions are found for the P 3 wave. An helicity flip-non-flip decomposition of the partial waves partly supports the indications found in the analyses of other reactions that the pomeron is built up mainly from s -channel helicity non-flip contributions.

16 data tables

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Photoproduction of neutral pions from hydrogen in the region of the first pion-nucleon resonance

Morand, R. ; Erickson, E.F. ; Pahin, J.P. ; et al.
Phys.Rev. 180 (1969) 1299-1307, 1969.
Inspire Record 55450 DOI 10.17182/hepdata.26482

The cross section for single π0 photoproduction from hydrogen has been measured at nominal angles of 70°, 90°, 130°, and 180° for photon energies 220-400 MeV by detecting the recoil protons. The 180° measurements, taken with a new setup, avoid big corrections present in some of the previously published results. These new data allow a direct comparison with the experiment presented by the Bonn group and with the most recent theoretical predictions.

1 data table

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