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Your search keyword '"J. D'Amore"' showing total 7 results
Start Over Author "J. D'Amore" Journal physics letters b
7 results on '"J. D'Amore"'

1. Evidence for two JP = 2− strange meson states in the K2 (1770) region

Author

F. Bird, P.K. Sinervo, C.O. Pak, S. H. Williams, N. Toge, T. Tauchi, B. T. Meadows, H. Hayashii, Shiro Suzuki, G. Tarnopolsky, D.C. Schultz, W.B. Johnson, Kumataro Ukai, P. Kunz, D. Aston, D. W. G. S. Leith, S. L. Shapiro, T. Bienz, A. P. Waite, J. Martinez, S. Iwata, B. N. Ratcliff, W. Dunwoodie, H. Ozaki, N. Awaji, A. Sugiyama, T. Matsui, A. Miyamoto, M. Nussbaum, R. Kajikawa, R. Endorf, K. Fujii, P.E. Rensing, L. Levinson, Yeong-Dae Kwon, T. Shimomura, and J. D'Amore

Subjects
Nuclear physics, Quark, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Spectrometer, Partial wave analysis, Particle interaction, Mass spectrum
Abstract

Evidence is presented for two J P =2 − strange mesons; one at ∼ 1.77 GeV/ c 2 and the other at ∼ 1.82 GeV/ c 2 . These states have been observed in a partial wave analysis of the Kω system in the reaction K − p → K − π + π − π 0 p where the strange mesons decay into K − ω and the ω then decays to π + π − π 0 . The data set contains ∼ 10 5 Kωp events at 11 GeV/ c taken by the LASS spectrometer at SLAC.

Published
1993
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2. Spin-parity determination of the φJ(1850) from K−p interactions at 11 GeV/c

Author

R. Endorf, K. Fujii, A. Miyamoto, H. Ozaki, N. Awaji, T. Bienz, W. Dunwoodie, A. P. Waite, R. Kajikawa, W.B. Johnson, T. Shimomura, L. Levinson, S. Iwata, P.K. Sinervo, P. Kunz, S. L. Shapiro, S. H. Williams, N. Toge, H. Hayashii, G. Tarnopolsky, J. D'Amore, F. Bird, Shiro Suzuki, D.C. Schultz, D. Aston, A. Sugiyama, Kumataro Ukai, C.O. Pak, T. Tauchi, B. T. Meadows, D. W. G. S. Leith, T. Matsui, B. N. Ratcliff, and M. Nussbaum

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle decay, Pair production, Meson, Hadron, G-parity, Hyperon, Lambda baryon, Quantum number
Abstract

High statistics data from the reactions K−p→K−K+Λ and K−p→Ks0K±π∓Λ at 11 GeV/c have been obtained in the LASS spectrometer at SLAC. Spherical harmonic moment and amplitude analyses of the K−K+ system confirm the existence of the φJ(1850) and demonstrate that its quantum numbers are IG(JPC)=0−(3−−). Evidence for a K∗ K (+c.c.) decay mode is also presented.

Published
1988
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3. Observation of the selective coupling of K* states to the K−η channel

Author

A. P. Waite, S. Iwata, D. W. G. S. Leith, C.O. Pak, P.K. Sinervo, L. Levinson, Shiro Suzuki, W.B. Johnson, J. D'Amore, T. Shimomura, S. L. Shapiro, D.C. Schultz, T. Matsui, D. Aston, T. Bienz, N. Awaji, G. Tarnopolsky, W. Dunwoodie, P. Kunz, T. Tauchi, S. H. Williams, N. Toge, H. Hayashii, F. Bird, B. T. Meadows, H. Ozaki, Kumataro Ukai, B. N. Ratcliff, A. Sugiyama, M. Nussbaum, A. Miyamoto, R. Endorf, K. Fujii, and R. Kajikawa

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Particle decay, Pair production, Effective mass (solid-state physics), Branching fraction, Hadron, Mass spectrum, Atomic physics, Nucleon
Abstract

The K−η effective mass spectrum in the reaction K−p→K−π+π−π0p at 11 GeV/c has a prominent peak at ≈1.75 GeV/c2, which is shown to be due to the K3∗(1780) by a spherical harmonic moments analysis and amplitude decomposition; there is no significant signal for K2∗(1430). The measured branching fractions for the leading L=1 and L=2 K∗,s, [BF(K2∗ (1430)→Kη) BF ( K 3 ∗ (1780)→ Kη )=9.4±3.4%] confirm the SU(3) prediction that the Kη channel couples preferentially to odd spin K*,s.

Published
1988
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4. Evidence for A from K−p interactions at 11 GeV/c

Author

S. H. Williams, N. Toge, H. Hayashii, Kumataro Ukai, T. Matsui, T. Bienz, W. Dunwoodie, W.B. Johnson, S. L. Shapiro, B. T. Meadows, T. Shimomura, Shiro Suzuki, G. Tarnopolsky, P.K. Sinervo, B. N. Ratcliff, N. Awaji, R. Kajikawa, R. Endorf, L. Levinson, H. Ozaki, F. Bird, A. Sugiyama, K. Fujii, D.C. Schultz, D. Aston, M. Nussbaum, A. Miyamoto, P. Kunz, T. Tauchi, C.O. Pak, J. D'Amore, D. W. G. S. Leith, A. P. Waite, and S. Iwata

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle decay, Particle physics, Pair production, Meson, Hadron, G-parity, Mass spectrum, Dalitz plot, Lambda baryon
Abstract

Data from the reaction K − p→K − K + Λ at 11 GeV/ c have been obtained in the LASS spectrometer at SLAC. A spherical harmonic moments analysis of the K − K + system provides evidence for a rather narrow J PC =4 ++ state at ∼2.2 GeV/ c 2 . Relevant data from the reaction K − p →K 0 s K 0 s Λ in the present experiment are shown also, and comparisons made to results from MARK III and GAMS in this mass region.

Published
1988
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5. Observation of a new at in K-p interactions at

Author

B. N. Ratcliff, Kumataro Ukai, T. Bienz, W. Dunwoodie, W.B. Johnson, D.C. Schultz, G. Tarnopolsky, D. Aston, P.K. Sinervo, L. Levinson, S. L. Shapiro, Shiro Suzuki, A. Miyamoto, C.O. Pak, D. W. G. S. Leith, F. Bird, N. Awaji, A. Sugiyama, S. H. Williams, N. Toge, H. Hayashii, A. P. Waite, M. Nussbaum, S. Iwata, J. D'Amore, R. Kajikawa, H. Ozaki, R. Endorf, B. T. Meadows, T. Matsui, K. Fujii, T. Tauchi, P. Kunz, and T. Shimomura

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Cross section (physics), State (functional analysis), Atomic physics, Resonance (particle physics)
Abstract

Clear evidence is presented for an Ω ∗− resonance of mass 2474±12 MeV c 2 and width 72±33 MeV c 2 in K−p interactions at 11 GeV c . The state is observed in the Ω−π+π− decay mode, and the corresponding inclusive cross section, corrected for Ω − π 0 π 0 decay, is estimated to be 290±90 nb.

Published
1988
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6. Observation of the leading K∗ L-excitation series from JP = 1− through 5− in the reaction K− p → K− π+ n AT 11 GeV/c

Author

Kumataro Ukai, L. Levinson, D.C. Schultz, D. Aston, G. Tarnopolsky, T. Shimomura, R. Kajikawa, W.B. Johnson, Shiro Suzuki, A. P. Waite, S. Iwata, N. Awaji, S. L. Shapiro, B. T. Meadows, S. H. Williams, C.O. Pak, N. Toge, H. Hayashii, A. Sugiyama, M. Nussbaum, P. Kunz, P.K. Sinervo, W. Dunwoodie, A. Miyamoto, R. Endorf, K. Fujii, B. N. Ratcliff, H. Ozaki, D. W. G. S. Leith, T. Tauchi, J. D'Amore, and T. Matsui

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Series (mathematics), Excited state, Spherical harmonics, Atomic physics, Excitation
Abstract

High statistics data for the reaction K−p→K−π+n at 11 GeV/c have been obtained in the LASS spectrometer at SLAC. A spherical harmonic moments analysis provides clear evidence for the production of the complete leading orbitally excited K∗ series up through JP = 5−. New measurements are made of the masses and widths of the 1−K∗(892), 2+K∗(1430 ), 3− K∗(1780), and 4+ K∗(2060), and evidence is presented for the production of a new K∗ state at 2382 MeV/c2 with spin-parity 5−.

Published
1986
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7. Observation of ω∗− production in K−p interactions at 11 GeV/c

Author

S. H. Williams, N. Toge, H. Hayashii, B. T. Meadows, M. Nussbaum, Kumataro Ukai, A. P. Waite, P.K. Sinervo, R. Endorf, H. Ozaki, N. Awaji, P. Kunz, B. N. Ratcliff, J. D'Amore, K. Fujii, G. Tarnopolsky, W.B. Johnson, S. Iwata, A. Miyamoto, S. L. Shapiro, T. Bienz, T. Tauchi, R. Kajikawa, A. Sugiyama, W. Dunwoodie, T. Shimomura, D. W. G. S. Leith, T. Matsui, F. Bird, D.C. Schultz, D. Aston, Shiro Suzuki, C.O. Pak, and L. Levinson

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Cross section (physics), State (functional analysis), Atomic physics, Resonance (particle physics), Beam (structure)
Abstract

Clear evidence is presented for the production of an Ω ∗− resonance of mass 2253±13 MeV/ c 2 and width 81±38 MeV/ c 2 in K − p interactions at 11 GeV/ c . The state is observed in the Ξ (1530)K decay mode, and the corresponding inclusive cross section is estimated to be 630±180 nb. Comparisons are made with theoretical predictions and with similar states observed inhyperon beam induced data.

Published
1987
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