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Polarization in Charge Exchange Reaction $\pi^- p \to \pi^0 n$ in Small Momentum Transfer Range at 40-{GeV}/$c$

Apokin, V.D. ; Avvakumov, I.A. ; Bagaturiya, Yu.Sh. ; et al.

Experientia Suppl. 38 (1981) 554, 1981.

Inspire Record 154047 DOI 10.17182/hepdata.11048

None

2 data tables match query

Table 1

AVERAGE TARGET POLARIZATION WAS 76 +- 3 PCT.

Table 2

No description provided.

Polarization Parameters in the Reactions $\pi^- p$ (Polarized) $\to \eta n$ and $\pi^- p$ (Polarized) $\to \eta^\prime n$ at 40-{GeV}/$c$

Apokin, V.D. ; Arestov, Yu.I. ; Avvakumov, I.A. ; et al.

Z.Phys.C 35 (1987) 173, 1987.

Inspire Record 222760 DOI 10.17182/hepdata.40802

The polarization parameter in the reactions π−p→ηn and π−p→η′n at 40 GeV/c with −t ranging from 0 to 2.6 (GeV/c)2 and 1.0 (GeV/c)2, respectively, was measured in experiments using a propanediol polarized target. Only gamma particles from the neutral meson decay were detected. The polarization parameter of the first reaction turns out to be negative in a widet interval (0.05<−t<1.6 (GeV/c)2) and probably changes its sign at larger values oft. The average value of the polarization parameter of the second reaction is equal to −17±8)% in the region 0.05<−t<0.5 (GeV/c)2.

0 data tables match query

pi- Meson Elastic Scattering on Proton in the Coulomb-Nuclear Interference Region for Momentum Range from 33-GeV/c Up to 60-GeV/c

Apokin, V.D. ; Vasiliev, A.N. ; Derevshchikov, A.A. ; et al.

Sov.J.Nucl.Phys. 24 (1976) 49, 1976.

Inspire Record 99591 DOI 10.17182/hepdata.35863

None

10 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Polarization in the Reaction $\pi^-$ Polarized $p \to \pi^0 n$ at 40-{GeV}/$c$

Avvakumov, I.A. ; Apokin, V.D. ; Bagaturiya, Yu.Sh. ; et al.

Nucl.Phys.B 255 (1985) 253-272, 1985.

Inspire Record 206940 DOI 10.17182/hepdata.33791

The paper presents results on measuring the polarization in the reaction π − p→ π 0 n at 40 GeV/ c in the 4-momentum transfer range 0<| t |⩽2 (GeV/ c ) 2 . The results based on the statistics of about 2.2 million recorded events made it possible to observe a noticeable value and complex structure in the polarization behaviour up to | t |⩽2 (GeV/ c ) 2 .

0 data tables match query

Polarization in Charge Exchange Reaction $\pi^- p \to \pi^0 n$ at 40-{GeV}/$c$ for the Four Momentum Transfer Range $0 < T < 2$-{GeV}/$c^2$

Apokin, V.D. ; Avvakumov, I.A. ; Bagaturiya, Yu.Sh. ; et al.

Z.Phys.C 15 (1982) 293, 1982.

Inspire Record 169455 DOI 10.17182/hepdata.41256

The results on measuring polarization in charge exchange reaction π−+p→π0+n at 40 GeV/c are presented for the 4-momentum transfer range from 0 up to 2 (GeV/c)2. At |t|≦0.4 (GeV/c)2 the polarization has a positive sign. In the “crossover” region of π± elastic scattering a possible minimum in the polarization behaviour has been seen for the first time. the polarization is zero within the statistical accuracy near this point. In the “deep” region of the charge-exchange differential cross-section the polarization has a negative sign. The presented data are not in agreement with the modern theoretical models.

0 data tables match query

MEASUREMENT OF POLARIZATION IN THE pi- p ---> pi0, n, pi0 ---> 2 gamma REACTION AT 40-GeV/c WITH THE REGISTRATION OF ALL REACTION PRODUCTS

Borisov, N.S. ; Kazarinov, Yu.M. ; Liburg, M.Yu. ; et al.

JINR-P1-84-311, 1984.

Inspire Record 203007 DOI 10.17182/hepdata.9904

None

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Elastic pi+ p, K+ p and p p Scattering in the Region of Coulomb-Nuclear Interference at Momenta 42.5-GeV/c and 52.2-GeV/c

Apokin, V.D. ; Vasiliev, A.N. ; Derevshchikov, A.A. ; et al.

Yad.Fiz. 25 (1977) 94-102, 1977.

Inspire Record 108613 DOI 10.17182/hepdata.19035

None

18 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Quasielastic Charge Exchange of Negative Pions on Carbon Into $\pi^0$, $\eta$, $\eta^\prime$ (958), $\omega(783)$ and F2 (1270) Mesons at 39.1-{GeV}/$c$

Apokin, V.D. ; Arestov, Yu.I. ; Belikov, N.I. ; et al.

Sov.J.Nucl.Phys. 46 (1987) 644, 1987.

Inspire Record 239549 DOI 10.17182/hepdata.40865

None

7 data tables match query

Table 1

No description provided.

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No description provided.

Table 3

No description provided.

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OBSERVATION OF THE ASYMMETRY IN THE REACTION pi- p (polarized) ---> (pi0 pi0) n

Apokin, V.D. ; Belikov, N.I. ; Derevshchikov, A.A. ; et al.

Sov.J.Nucl.Phys. 47 (1988) 465, 1988.

Inspire Record 246899 DOI 10.17182/hepdata.40790

None

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

POLARIZATION ASYMMETRY OSCILLATIONS IN REACTION pi- p ---> p0 n AT t <= 3-GeV/c**2

Apokin, V.D. ; Arestov, Yu.I. ; Belikov, N.I. ; et al.

Sov.J.Nucl.Phys. 45 (1987) 840, 1987.

Inspire Record 234598 DOI 10.17182/hepdata.40905

None

1 data table match query

Table 1

No description provided.

THE OBSERVATION OF THE ASYMMETRY IN THE REACTION pi- polarized p ---> pi0 X AT THE ANGLE 90-degrees IN cms AT 40-GeV/c

Vasiliev, A.N. ; Matulenko, Yu.A. ; Meshchanin, A.P. ; et al.

60-66, 1984.

Inspire Record 206936 DOI 10.17182/hepdata.40968

None

1 data table match query

Table 1

No description provided.

pi- p ---> f2 (1270) n REACTION IN THE REGION t < 2.0-GeV/c**2 AT 40-GeV/c

Apokin, V.D. ; Arestov, Yu.I. ; Belikov, N.I. ; et al.

Sov.J.Nucl.Phys. 47 (1988) 1041, 1988.

Inspire Record 239548 DOI 10.17182/hepdata.40792

None

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Observation of significant spin effects in hard collisions at 40-GeV/c

Apokin, V.D. ; Arestov, Yu.I. ; Astafev, O.V. ; et al.

Phys.Lett.B 243 (1990) 461-464, 1990.

Inspire Record 303587 DOI 10.17182/hepdata.29694

A single-spin asymmetry in the inclusive π 0 production at small x F was measured. In the experiment 40 GeV/c π − mesons were incident on transversely polarized protons and deutrons. An asymmetry of (40–50)% has been revealed in the hard scattering region.

1 data table match query

Table 1

No description provided.

OBSERVATION OF THE ASYMMETRY IN THE REACTION pi- polarized p ---> omega n AT 40-GeV/c

Vasiliev, A.N. ; Matulenko, Yu.A. ; Meshchanin, A.P. ; et al.

44-51, 1984.

Inspire Record 206927 DOI 10.17182/hepdata.10530

None

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

MEASUREMENT OF ASYMMETRY IN THE REACTION pi- polarized p ---> K0 LAMBDA AT 40-GeV/c

Vasiliev, A.N. ; Matulenko, Yu.A. ; Meshchanin, A.P. ; et al.

52-59, 1984.

Inspire Record 206928 DOI 10.17182/hepdata.10569

None

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Measurement of differential cross sections for charge exchange of $\pi^{-}$ mesons in carbon at 40 GeV/c

Apokin, V.D. ; Vasiliev, A.N. ; Matulenko, Yu.A. ; et al.

Sov.J.Nucl.Phys. 36 (1982) 694-697, 1982.

Inspire Record 178549 DOI 10.17182/hepdata.10721

None

2 data tables match query

Table 2

No description provided.

Table 4

No description provided.

Reaction $\pi^- p \to \eta n$ in the 15-{GeV}/$c$ to 40-{GeV}/$c$ Momentum Range

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Nucl.Phys.B 152 (1979) 1, 1979.

Inspire Record 133409 DOI 10.17182/hepdata.41487

A high-statistics measurement of the reaction π − p→ η n; η →2 γ has been performed at the 70 GeV Serpukhov accelerator for 15, 20, 25, 30 and 40 GeV/ c incident pion momentum using the NICE set-up with its associated 648-channel hodoscope spectrometer for γ-ray detection. It is found that the spin-flip and non-spin-flip amplitudes can be parametrized, for small | t |, as exponentials with the same slopes to within a few percent. For | t | ≳ 1 (GeV/ c ) 2 there is a break in the differential cross section. In addition, the A 2 effective trajectory deviates markedly for | t | ≳ 1 GeV/ c ) 2 from the linear behaviour valid for smaller | t |.

3 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Investigation of pi- p --> pi0 n Reaction at Large Momentum Transfer

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Phys.Lett.B 72 (1977) 132, 1977.

Inspire Record 121448 DOI 10.17182/hepdata.39780

New results on a high statistics measurement of pion-nucleon charge exchange scattering at 40 GeV/ c , extending in momentum transfer up to − t = 1.8 (GeV/ c ) 2 , are reported and compared with an optical impact parameter model, together with previous data for the reaction π − p → ηn at the same energy. The imaginary part of the pole trajectory b 0 ( s ) is determined from the slope of the tangent to the maxima of (−t) 1 2 d σ d t . The linear increase of Im b 0 ( s ) with log s , which has been observed at low energies, continues up to 40 GeV/ c .

1 data table match query

Table 2

AT SMALL -T, THE BINNING TENDS TO SMEAR OUT THE FORWARD DIP.

Charged-Particle Multiplicities in 100-GeV/c anti-p p Interactions

Ansorge, R.E. ; Bust, C.P. ; Carter, J.R. ; et al.

Phys.Lett.B 59 (1975) 299-302, 1975.

Inspire Record 2603 DOI 10.17182/hepdata.27765

Results are presented on the topological cross sections obtained for antiproton-proton interactions from an exposure of the Fermilab 30-inch bubble chamber to a 100 GeV/ c negative beam enriched in p 's. The p p inelastic cross section is found to be σ inel = 34.6 ± 0.4 mb, and the average inelastic charged particle multiplicity to be 〈 n 〉 = 6.74 ± 0.05.

2 data tables match query

Table 1

ERRORS ARE STATISTICAL ONLY EXCEPT FOR 2-PRONG CROSS-SECTIONS.

Table 2

EXPONENTIAL FIT TO ELASTIC T DISTRIBUTION TO CORRECT FOR AN APPARENT LOSS OF EVENTS AT SMALL -T.

Measurements of pi- p ---> pi0 n reaction cross-section in the momentum range up to 50 gev/c

Bolotov, V.N. ; Devishev, M.I. ; Devisheva, M.N. ; et al.

Phys.Lett.B 38 (1972) 120-122, 1972.

Inspire Record 75878 DOI 10.17182/hepdata.28338

Cross-section data are presented for pion proton charge-exchange scattering in the momentum range 20 to 50 GeV/ c . The experiments were performed at 70 GeV IHEP accelerator.

1 data table match query

Table 1

No description provided.

Total cross-sections of pi-minus, k-minus, and anti-p on protons and deuterons in the momentum range 20-65 gev/c

The IHEP-CERN collaboration Allaby, J.V. ; Bushnin, Yu.B. ; Denisov, S.P. ; et al.

Phys.Lett.B 30 (1969) 500-505, 1969.

Inspire Record 56636 DOI 10.17182/hepdata.6171

Total cross-section data are presented for negative pions, kaons, and antiprotons on protons and deuterons in the momentum range 20 GeV/ c to 65 GeV/ c in 5 GeV/ c steps.

3 data tables match query

Table 1

Axis error includes +- 0.0/0.0 contribution.

Table 2

No description provided.

Table 3

No description provided.

PROPERTIES OF LONGITUDINAL AND TRANSVERSE MOMENTUM CHARACTERISTICS OF CHARGED PARTICLES RELATIVE TO THE EVENT PRINCIPLE AXIS IN pi+ (pi-) p INTERACTIONS AT 8-GeV/c AND 40-GeV/c

Bartke, E. ; Kanarek, T. ; Kvatadze, R.A. ; et al.

JINR-1-82-864, 1982.

Inspire Record 186696 DOI 10.17182/hepdata.39681

None

25 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Observation of A Meson x --> 2 gamma, with Mass 2.85-GeV/c**2, Produced in the Charge Exchange Reaction pi- p --> x n at 40-GeV/c

Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Phys.Lett.B 72 (1978) 500-502, 1978.

Inspire Record 122151 DOI 10.17182/hepdata.27481

The invariant mass spectrum of neutral final states produced in π − p charge-exchange scattering at 40 GeV/ c has been studied, searching for heavy particles decaying in 2γ. A peak is observed around 2.85 GeV/ c 2 . The cross section of the reaction π − p→X(2.85)+n, times the branching ratio of the X→2 γ decay, is measured to be σ × BR ⋍ 2 × 10 −34 cm 2 .

1 data table match query

Table 1

MEAN VALUE OF -T = 0.28 +- 0.04 GEV**2.

Reaction $\pi^- p \to \pi^0 n$ in the 15-{GeV}/$c$ - 40-{GeV}/$c$ Momentum Range

The Serpukhov-CERN collaboration Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Nucl.Phys.B 154 (1979) 189, 1979.

Inspire Record 140776 DOI 10.17182/hepdata.34746

A high statistics measurement of the reaction π − p → π 0 n has been performed at the Serpukhov accelerator for 15, 20, 25, 30 and 40 GeV/ c incident pion momentum using the NICE set-up with its associated 648-channel hodoscope spectrometer for γ-ray detection. More than 3 million charge-exchange events have been recorded in total. It is found that the spin-flip and non-spin-flip amplitudes can be parametrized, for small | t |, as exponentials with the same slopes to within a few percent. Also the behaviour of the differential cross section for small and medium | t | agrees with the prediction of a geometrical s -channel model which describes binary reactions in terms of a complex pole b 0 ( s ). The imaginary part of this universal pole, Im b 0 ( s ), has been determined and found to be growing logarithmically with s .

0 data tables match query

Measurement of the polarization parameter P in elastic π+p scattering at 335, 370, and 410 MeV

Bekrenev, V.S. ; Beloglazov, Yu.A. ; Gaditskii, V.G. ; et al.

JETP Lett. 35 (1982) 148, 1982.

Inspire Record 1408359 DOI 10.17182/hepdata.70446

None

7 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of pi- n and pi- C-12 Interactions Involving Strange Particles at the Momentum of 40-GeV/c

Angelov, N. ; Vishnevskaya, K.P. ; Grishin, V.G. ; et al.

Yad.Fiz. 24 (1976) 732-741, 1976.

Inspire Record 100544 DOI 10.17182/hepdata.18228

None

3 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Total and absorption cross-sections of pi-, k- and anti-p in the momentum range 20-65 gev/c

Allaby, J.V. ; Bushnin, Yu.B. ; Gorin, Yu.P. ; et al.

Yad.Fiz. 12 (1970) 538-557, 1970.

Inspire Record 63289 DOI 10.17182/hepdata.18403

None

1 data table match query

Table 1

No description provided.

Angular distribution of the production of symmetric hadron pairs in pi- p collisions at 40-GeV

Volkov, A.A. ; Kostritsky, A.V. ; Abramov, V.V. ; et al.

JETP Lett. 58 (1993) 486-492, 1993.

Inspire Record 346766 DOI 10.17182/hepdata.40644

None

7 data tables match query

Table 1

No description provided.

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No description provided.

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No description provided.

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High p(T) inclusive hadron production in pi- p collisions at 40-GeV and angles 49-degrees <= theta(cm) <= 93-degrees

Turchanovich, L.K. ; Abramov, V.V. ; Baldin, B.Yu. ; et al.

Phys.Atom.Nucl. 56 (1993) 1367-1377, 1993.

Inspire Record 356443 DOI 10.17182/hepdata.40547

None

6 data tables match query

Table 1

Only statistical errors are given.

Table 2

Only statistical errors are given.

Table 3

Only statistical errors are given.

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Study of the reaction pi- p ---> eta-prime eta-prime n

Berdnikov, E.B. ; Bityukov, S.I. ; Borisov, G.V. ; et al.

Z.Phys.C 57 (1993) 13-16, 1993.

Inspire Record 340793 DOI 10.17182/hepdata.14498

The reaction π−p→η′η′n has been studied atpπ=37 GeV/c. Total of 14 events of this reaction have been selected. It has been shown that in the effective mass spectrum of the η′η′ system the events are concentrated mainly near the reaction threshold, which might be caused by the decayX(1910)→η′η′. The reaction cross-section has been evaluated: σ(π−p→η′η′n)=110±40 nb.

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.