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Elastic Scattering of 3.5-BeV/c $\pi^-$ Mesons by Protons

Ainutdinov, M.S. ; Zombkovskii, S.M. ; Pletnikov, A.A. ; et al.

Sov.Phys.JETP 18 (1964) 271-272, 1964.

Inspire Record 1387686 DOI 10.17182/hepdata.70200

THE study of elastic scattering at high energies in the region of the diffraction maximum has gained in interest recently in connection with the verifica- tion of the asymptotic expressions obtained by cal- culating the Regge-pole trajectories. We have in- vestigated the elastic scattering of 3. 5- Be VIc 7r- mesons by protons. The measurements were made with the aid of a liquid-hydrogen bubble chamber 25 em in diameter, placed in a 14 kOe magnetic field.

3 data tables match query

Table 1

No description provided.

Table 2

DATA READ FROM GRAPH BY SRS.

Table 3

No description provided.

Elastic scattering of 7.2-BeV negative pions on protons

Ainutdinov, M.S. ; Zombkovskii, S.M. ; Nikitin, S.Ya. ; et al.

Sov.Phys.JETP 15 (1962) 1038-1040, 1962.

Inspire Record 1501539 DOI 10.17182/hepdata.76439

None

1 data table match query

Table 1

No description provided.

Amplitude Analysis of the K0(s) K0(s) System Produced in the Reaction pi- p ---> K0(s) K0(s) n at 23-GeV/c

Etkin, A. ; Foley, K.J. ; Longacre, R.S. ; et al.

Phys.Rev.D 25 (1982) 1786, 1982.

Inspire Record 169729 DOI 10.17182/hepdata.24030

We have carried out an amplitude analysis of the KS0KS0 system produced in the reaction π−p→KS0KS0n at 23 GeV/c, based on about 15 000 events in the low-t region (|t−tmin|<0.1 GeV2). Below 1.6 GeV/c2, our favored solution is very similar to those from previous analyses. For higher masses, we observe the KS0KS0 decay of the h(2040) meson. In addition, the l=0 partial wave contains a new state, strongly coupled to KS0KS0, with parameters M=1.771−0.053+0.077 GeV/c2 and Γ=0.200−0.009+0.156 GeV/c2. Since this state is most probably I=0, we call it the S*′(1770). We find an f′f production ratio of 0.23−0.13+0.14, and branching ratios for f-meson and h(2040)-meson decays into KK¯ of (3.1−1.7+0.7)% and (0.67−0.15+0.41)%, respectively. We find, in a detailed comparison of our results with those from other experiments, that our solution is compatible with all known features of both charged and neutral KK¯ systems.

1 data table match query

Table 1

No description provided.

Spin Parity Analysis of the B Meson

Chung, S.U. ; Protopopescu, S.D. ; Lynch, G.R. ; et al.

Phys.Rev.D 11 (1975) 2426, 1975.

Inspire Record 91530 DOI 10.17182/hepdata.24885

We have done a JP analysis of the low-mass π+ω system, using the reaction π+p→π+ωp at 7.1 GeV/c. We find that the B resonance cannot be JP=0− and must belong to the unnatural-parity series (1+, 2−, 3+,...), regardless of the amount of interference between the B and the background. If we assume that the B does not interfere with the background, we find that all JP states for the resonance are rejected except for 1+. Even if interference effects are allowed in the analysis, a good fit with reasonable parameters is obtained only with the 1+ hypothesis for the B meson. In an appendix, we give relevant theoretical formulas appropriate for a πω system with any number of spin-parity states and arbitrary degrees of interference among them.

1 data table match query

Table 1

TAKING INTO ACCOUNT 0- AND 1+ SMOOTH BACKGROUND UNDER THE B MESON. EVENTS WITH 1.08 < M(PI+ OMEGA) < 1.38 GEV.

Observation of a High-Mass Delta++ Produced in Association with K*, rho and omega

Chung, S.U. ; Protopopescu, S.D. ; Eisner, R.L. ; et al.

Phys.Lett.B 57 (1975) 384-388, 1975.

Inspire Record 98501 DOI 10.17182/hepdata.27841

Strong evidence is presented for quasi-two-body production of a π + p enhancement with mass 1881±6MeV and width 219±23MeV, recoiling off vector mesons ϱ O and ω from π + p interactions at 7.1 GeV/ c and K * o (890) from K + p interactions at 12 GeV/ c . The most probable J P assignment for this object is 7/2 + , making it a likely candidate for the Regge recurrence of Δ(1236).

2 data tables match query

Table 1

JACKSON FRAME.

Table 2

JACKSON FRAME.