18 results on '"Stefanski RJ"'
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Search Results
2. Search for Electron Antineutrino Appearance at the Delta m(2) similar to 1 eV(2) Scale
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Aguilar-Arevalo, AA, Anderson, CE, Brice, SJ, Brown, BC, Bugel, L, Conrad, JM, Djurcic, Z, Fleming, BT, Ford, R, Garcia, FG, Garvey, GT, Gonzales, J, Grange, J, Green, C, Green, JA, Imlay, R, Johnson, RA, Karagiorgi, G, Katori, T, Kobilarcik, T, Linden, SK, Louis, WC, Mahn, KBM, Marsh, W, Mauger, C, McGary, VT, Metcalf, W, Mills, GB, Moore, CD, Mousseau, J, Nelson, RH, Nienaber, P, Nowak, JA, Osmanov, B, Pavlovic, Z, Perevalov, D, Polly, CC, Ray, H, Roe, BP, Russell, AD, Shaevitz, MH, Sorel, M, Spitz, J, Stancu, I, Stefanski, RJ, Tayloe, R, Tzanov, M, Van de Water, RG, Wascko, MO, White, DH, Wilking, MJ, Zeller, GP, and Zimmerman, ED
- Published
- 2009
3. Event excess in the MiniBooNE search for ¯νμ→¯νe oscillations.
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Aguilar-Arevalo AA, Anderson CE, Brice SJ, Brown BC, Bugel L, Conrad JM, Dharmapalan R, Djurcic Z, Fleming BT, Ford R, Garcia FG, Garvey GT, Mirabal J, Grange J, Green JA, Imlay R, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Linden SK, Louis WC, Mahn KB, Marsh W, Mauger C, Metcalf W, Mills GB, Moore CD, Mousseau J, Nelson RH, Nguyen V, Nienaber P, Nowak JA, Osmanov B, Pavlovic Z, Perevalov D, Polly CC, Ray H, Roe BP, Russell AD, Schirato R, Shaevitz MH, Sorel M, Spitz J, Stancu I, Stefanski RJ, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Zeller GP, and Zimmerman ED
- Abstract
The MiniBooNE experiment at Fermilab reports results from a search for ¯ν_{μ}→¯ν_{e} oscillations, using a data sample corresponding to 5.66×10²⁰ protons on target. An excess of 20.9±14.0 events is observed in the energy range 475
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- 2010
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4. Search for electron antineutrino appearance at the deltam(2) approximately 1 eV(2) Scale.
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Aguilar-Arevalo AA, Anderson CE, Brice SJ, Brown BC, Bugel L, Conrad JM, Djurcic Z, Fleming BT, Ford R, Garcia FG, Garvey GT, Gonzales J, Grange J, Green C, Green JA, Imlay R, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Linden SK, Louis WC, Mahn KB, Marsh W, Mauger C, McGary VT, Metcalf W, Mills GB, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Pavlovic Z, Perevalov D, Polly CC, Ray H, Roe BP, Russell AD, Shaevitz MH, Sorel M, Spitz J, Stancu I, Stefanski RJ, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Zeller GP, and Zimmerman ED
- Abstract
The MiniBooNE Collaboration reports initial results from a search for nu(mu)-->nu(e) oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10(20) protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200
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- 2009
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5. Measurement of the ratio of the numu charged-current single-pion production to quasielastic scattering with a 0.8 GeV neutrino beam on mineral oil.
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KB, Marsh W, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, and Zimmerman ED
- Abstract
Using high statistics samples of charged-current numu interactions, the MiniBooNE [corrected] Collaboration reports a measurement of the single-charged-pion production to quasielastic cross section ratio on mineral oil (CH2), both with and without corrections for hadron reinteractions in the target nucleus. The result is provided as a function of neutrino energy in the range 0.4 GeV
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- 2009
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6. Search for muon neutrino and antineutrino disappearance in MiniBooNE.
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Grange J, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KB, Marsh W, Mauger C, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, and Zimmerman ED
- Abstract
The MiniBooNE Collaboration reports a search for nu_{micro} and nu[over]_{micro} disappearance in the Deltam;{2} region of 0.5-40 eV;{2}. These measurements are important for constraining models with extra types of neutrinos, extra dimensions, and CPT violation. Fits to the shape of the nu_{micro} and nu[over]_{micro} energy spectra reveal no evidence for disappearance at the 90% confidence level (C.L.) in either mode. The test of nu[over]_{micro} disappearance probes a region below Deltam;{2} = 40 eV;{2} never explored before.
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- 2009
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7. A Risk Assessment Model for Importation of United States Milling Wheat Containing Tilletia contraversa.
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Peterson GL, Whitaker TB, Stefanski RJ, Podleckis EV, Phillips JG, Wu JS, and Martinez WH
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- 2009
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8. Measurement of numicro and nue events in an off-axis horn-focused neutrino beam.
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Adamson P, Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Bishai M, Brice SJ, Brown BC, Bugel L, Cao J, Choudhary BC, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Gallagher HR, Garcia FG, Garvey GT, Green C, Green JA, Harris D, Hart TL, Hawker E, Hylen J, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kopp S, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Loiacono L, Louis WC, Marchionni A, Mahn KB, Marsh W, McGregor G, Messier MD, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson JK, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smart W, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Vahle P, Van de Water R, Viren B, Wascko MO, White DH, Wilking MJ, Yang HJ, Yumiceva FX, Zeller GP, Zimmerman ED, and Zwaska R
- Abstract
We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beam line at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle (6.3 degrees) with respect to the NuMI beam axis. Samples of charged-current quasielastic numicro and nue interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.
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- 2009
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9. Unexplained excess of electronlike events from a 1-GeV neutrino beam.
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Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KB, Marsh W, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, and Zimmerman ED
- Abstract
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46x10;{20} protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2+/-43.4 events, corresponding to an excess of 128.8+/-20.4+/-38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either nu_{e} and nu[over ]_{e} charged-current scattering or nu_{mu} neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9+/-35.7 events.
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- 2009
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10. Measurement of muon neutrino quasielastic scattering on carbon.
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Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KB, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, and Zimmerman ED
- Abstract
The observation of neutrino oscillations is clear evidence for physics beyond the standard model. To make precise measurements of this phenomenon, neutrino oscillation experiments, including MiniBooNE, require an accurate description of neutrino charged current quasielastic (CCQE) cross sections to predict signal samples. Using a high-statistics sample of nu_(mu) CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events observed in a carbon-based detector. The extracted parameters include an effective axial mass, M_(A)(eff)=1.23+/-0.20 GeV, that describes the four-momentum dependence of the axial-vector form factor of the nucleon, and a Pauli-suppression parameter, kappa=1.019+/-0.011. Such a modified Fermi gas model may also be used by future accelerator-based experiments measuring neutrino oscillations on nuclear targets.
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- 2008
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11. Search for electron neutrino appearance at the Delta m2 approximately 1 eV2 scale.
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Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KB, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, and Zimmerman ED
- Abstract
The MiniBooNE Collaboration reports first results of a search for nu e appearance in a nu mu beam. With two largely independent analyses, we observe no significant excess of events above the background for reconstructed neutrino energies above 475 MeV. The data are consistent with no oscillations within a two-neutrino appearance-only oscillation model.
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- 2007
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12. Dalitz plot analysis of the decay D(+)-->K(-)pi(+)pi(+) and indication of a low-mass scalar Kpi resonance.
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Göbel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lundberg B, Magnin J, Massafferri A, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano Salinas CJ, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
We study the Dalitz plot of the decay D(+)-->K(-)pi(+)pi(+) with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known Kpi resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the K(*)(0)(1430) to float, we obtain values consistent with those from PDG but the chi(2) per degree of freedom of the fit is still unsatisfactory. A good fit is found when we allow for the presence of an additional scalar resonance, with mass 797+/-19+/-43 MeV/c(2) and width 410+/-43+/-87 MeV/c(2). The mass and width of the K(*)(0)(1430) become 1459+/-7+/-5 MeV/c(2) and 175+/-12+/-12 MeV/c(2), respectively. Our results provide new information on the scalar sector in hadron spectroscopy.
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- 2002
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13. Direct measurement of the pion valence-quark momentum distribution, the pion light-cone wave function squared.
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Deval S, Fernandez A, Fox GF, Gagnon P, Gerzon S, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lichtenstadt J, Lundberg B, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
We present the first direct measurements of the pion valence-quark momentum distribution which is related to the square of the pion light-cone wave function. The measurements were carried out using data on diffractive dissociation of 500 GeV/c pi(-) into dijets from a platinum target at Fermilab experiment E791. The results show that the /q&q> light-cone asymptotic wave function describes the data well for Q2 approximately 10 (GeV/c)(2) or more. We also measured the transverse momentum distribution of the diffractive dijets.
- Published
- 2001
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14. Observation of color-transparency in diffractive dissociation of pions.
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Gerzon S, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lichtenstadt J, Lundberg B, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
We have studied the diffractive dissociation into dijets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to asymptotically high energies (where t(min)-->0), we find that when the per-nucleus cross section for this process is parametrized as sigma = sigma0Aalpha, alpha has values near 1.6, the exact result depending on jet transverse momentum. These values are in agreement with those predicted by theoretical calculations of color-transparency.
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- 2001
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15. Search for rare and forbidden Charm Meson decays D0 --> Vl+l- and hhll.
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lundberg B, Magnin J, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
We report results of a search for flavor-changing neutral current (FCNC), lepton flavor, and lepton-number violating decays of the D0 (and its antiparticle) into three and four bodies. Using data from Fermilab charm hadroproduction experiment E791, we examine modes with two leptons (muons or electrons) and a rho(0), K( *0), or straight phi vector meson or a nonresonant pi(pi), Kpi, or KK pair of pseudoscalar mesons. No evidence for any of these decays is found. Therefore, we present branching-fraction upper limits at 90% confidence level for the 27 decay modes examined (18 new).
- Published
- 2001
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16. Experimental evidence for a light and broad scalar resonance in D(+) --> pi(-)pi(+)pi(+) decay.
- Author
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lundberg B, Magnin J, Massafferri A, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
From a sample of 1172 +/- 61 D(+)-->pi(-)pi(+)pi(+) decays, we find gamma(D(+)-->pi(-)pi(+)pi(+))/gamma(D(+)-->K-pi(+)pi(+)) = 0.0311 +/- 0.0018(+0.0016)(-0.0026). Using a coherent amplitude analysis to fit the Dalitz plot of these decays, we find strong evidence that a scalar resonance of mass 478(+24)(-23) +/- 17 MeV/c(2) and width 324(+42)(-40) +/- 21 MeV/c(2) accounts for approximately half of all decays.
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- 2001
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17. Study of the D(+)(s)-->pi(-)pi(+)pi(+) decay and measurement of f(0) masses and widths.
- Author
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Aitala EM, Amato S, Anjos JC, Appel JA, Ashery D, Banerjee S, Bediaga I, Blaylock G, Bracker SB, Burchat PR, Burnstein RA, Carter T, Carvalho HS, Copty NK, Cremaldi LM, Darling C, Denisenko K, Devmal S, Fernandez A, Fox GF, Gagnon P, Gobel C, Gounder K, Halling AM, Herrera G, Hurvits G, James C, Kasper PA, Kwan S, Langs DC, Leslie J, Lundberg B, Magnin J, Massafferri A, MayTal-Beck S, Meadows B, de Mello Neto JR, Mihalcea D, Milburn RH, de Miranda JM, Napier A, Nguyen A, d'Oliveira AB, O'Shaughnessy K, Peng KC, Perera LP, Purohit MV, Quinn B, Radeztsky S, Rafatian A, Reay NW, Reidy JJ, dos Reis AC, Rubin HA, Sanders DA, Santha AK, Santoro AF, Schwartz AJ, Sheaff M, Sidwell RA, Slaughter AJ, Sokoloff MD, Solano J, Stanton NR, Stefanski RJ, Stenson K, Summers DJ, Takach S, Thorne K, Tripathi AK, Watanabe S, Weiss-Babai R, Wiener J, Witchey N, Wolin E, Yang SM, Yi D, Yoshida S, Zaliznyak R, and Zhang C
- Abstract
From a sample of 848+/-44 D(+)(s)-->pi(-)pi(+)pi(+) decays, we find gamma(D(+)(s)-->pi(-)pi(+)pi(+))/gamma(D(+)(s)-->straight phipi(+)) = 0.245+/-0.028(+0.019)(-0.012). Using a Dalitz plot analysis of this three body decay, we find significant contributions from the channels rho(0)(770)pi(+), rho(0)(1450)pi(+), f(0)(980)pi(+), f(2)(1270)pi(+), and f(0)(1370)pi(+). We also present the values obtained for masses and widths of the resonances f(0)(980) and f(0)(1370).
- Published
- 2001
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18. Measurement of the relative branching fraction Gamma (D0-->K micro nu )/ Gamma (D0--> microX).
- Author
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Kodama K, Ushida N, Mokhtarani A, Paolone VS, Volk JT, Wilcox JO, Yager PM, Edelstein RM, Freyberger AP, Gibaut DB, Lipton RJ, Nichols WR, Potter DM, Russ JS, Zhang Y, Jang HI, Kim JY, Lim IT, Pac MY, Baller BR, Stefanski RJ, Nakazawa K, Tasaka S, Choi YS, Chung KH, Kim DC, Park IG, Song JS, Yoon CS, Chikawa M, Abe T, Fujii T, Fujioka G, Fujiwara K, Fukushima H, Hara T, Takahashi Y, Taruma K, Tsuzuki Y, Yokoyama C, Chang SD, Cheon BG, Cho JH, Kang JS, Kim CO, Kim KY, Kim TY, Lee JC, Lee SB, Lim GY, Nam SW, Shin TS, Sim KS, Woo JK, Isokane Y, Tsuneoka Y, Aoki S, Gauthier A, Hoshino K, Kitamura H, Kobayashi M, Miyanishi M, Nakamura K, and Nakamura M
- Published
- 1991
- Full Text
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