Search

Your search keyword '"He, Kangling"' showing total 25 results
Start Over Author "He, Kangling"
25 results on '"He, Kangling"'

4. Rapid determination of starch and alcohol contents in fermented grains by hyperspectral imaging combined with data fusion techniques.

Author

Liang, Yan, Tian, Jianping, Hu, Xinjun, Huang, Yuexiang, He, Kangling, Xie, Liangliang, Yang, Haili, Huang, Dan, Zhou, Yifei, and Xia, Yuanyuan

Subjects
MULTISENSOR data fusion, STARCH, CORNSTARCH, STANDARD deviations, PRINCIPAL components analysis, SUPPORT vector machines
Abstract

Starch and alcohol serve as pivotal indicators in assessing the quality of lees fermentation. In this paper, two hyperspectral imaging (HSI) techniques (visible–near‐infrared (Vis–NIR) and NIR) were utilized to acquire separate HSI data, which were then fused and analyzed toforecast the starch and alcohol contents during the fermentation of lees. Five preprocessing methods were first used to preprocess the Vis–NIR, NIR, and the fused Vis–NIR and NIR data, after which partial least squares regression models were established to determine the best preprocessing method. Following, competitive adaptive reweighted sampling, successive projection algorithm, and principal component analysis algorithms were used to extract the characteristic wavelengths to accurately predict the starch and alcohol levels. Finally, support vector machine (SVM)‐AdaBoost and XGBoost models were built based on the low‐level fusion (LLF) and intermediate‐level fusion (ILF) of single Vis–NIR and NIR as well as the fused data. The results showed that the SVM‐AdaBoost model built using the LLF data afterpreprocessing by standard normalized variable was most accurate for predicting the starch content, with an RP2$\ R_P^2$ of 0.9976 and a root mean square error of prediction (RMSEP) of 0.0992. The XGBoost model built using ILF data was most accurate for predicting the alcohol content, with an RP2$R_P^2$ of 0.9969 and an RMSEP of 0.0605. In conclusion, the analysis of fused data from distinct HSI technologies facilitates rapid and precise determination of the starch and alcohol contents in fermented grains. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

5. First observation of the Cabibbo-suppressed decays Ξc+→Σ+π−π+ and Ξc+→Σ−π+π+ and measurement of their branching ratios

Author

Vázquez-Jáuregui, E., Engelfried, J., Akgun, U., Alkhazov, G., Amaro-Reyes, J., Atamantchouk, A.G., Ayan, A.S., Balatz, M.Y., Blanco-Covarrubias, A., Bondar, N.F., Cooper, P.S., Dauwe, L.J., Davidenko, G.V., Dersch, U., Dolgolenko, A.G., Dzyubenko, G.B., Edelstein, R., Emediato, L., Endler, A.M.F., Eschrich, I., Escobar, C.O., Estrada, N., Evdokimov, A.V., Filimonov, I.S., Garcia, F.G., Gaspero, M., Giller, I., Golovtsov, V.L., Gouffon, P., Gülmez, E., He, Kangling, Iori, M., Jun, S.Y., Kaya, M., Kilmer, J., Kim, V.T., Kochenda, L.M., Konorov, I., Kozhevnikov, A.P., Krivshich, A.G., Krü, H., Kubantsev, M.A., Kubarovsky, V.P., Kulyavtsev, A.I., Kuropatkin, N.P., Kurshetsov, V.F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L.G., Larin, I., Leikin, E.M., Li, Yunshan, Ló, G., Luksys, M., Lungov, T., Maleev, V.P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M.A., Molchanov, V.V., Morelos, A., Nelson, K.D., Nemitkin, A.V., Neoustroev, P.V., Newsom, C., Nilov, A.P., Nurushev, S.B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S.V., Pogodin, P., Procario, M., Prutskoi, V.A., Ramberg, E., Rappazzo, G.F., Razmyslovich, B.V., Rud, V.I., Russ, J., Sánchez-López, J.L., Schiavon, P., Simon, J., Sitnikov, A.I., Skow, D., Smith, V.J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N.K., Thomas, G.P., Torres, I., Uvarov, L.N., Vasiliev, A.N., Vavilov, D.V., Verebryusov, V.S., Victorov, V.A., Vishnyakov, V.E., Vorobyov, A.A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R.

Subjects
Nuclear and High Energy Physics
Published
2008
Full Text
View/download PDF

6. Confirmation of the doubly charmed baryon Ξcc+(3520) via its decay to pD+K−

Author

J. Amaro-Reyes, P. Mathew, G.V. Davidenko, Ugur Akgun, I. Eschrich, Andrey Vasiliev, V. I. Rud, M. Iori, I. Giller, A. I. Kulyavtsev, P. Gouffon, C.O. Escobar, E. J. Ramberg, L. Stutte, V. E. Vishnyakov, Vincent J Smith, A.G. Dolgolenko, A. M. F. Endler, Mao Zhenlin, P. Schiavon, J. M. You, M. Procario, J. Lach, A. A. Vorobyov, V. F. Kurshetsov, Ahmet S. Ayan, R. M. Edelstein, S. V. Petrenko, A. P. Nilov, I.S. Filimonov, P. S. Cooper, A. G. Krivshich, Suat Ozkorucuklu, C. R. Newsom, A.V. Nemitkin, F. G. Garcia, S. B. Nurushev, D. Skow, P. V. Neoustroev, M. Srivastava, A. V. Evdokimov, Viktor Matveev, A. P. Kozhevnikov, D. V. Vavilov, G. F. Rappazzo, E. Ozel, E. Vázquez-Jáuregui, Li Yunshan, Lev Uvarov, James Russ, A. Ocherashvili, Zhao Wenheng, Zheng Shuchen, S. Y. Jun, B. V. Razmyslovich, Erhan Gülmez, A.G. Atamantchouk, V. S. Verebryusov, L. J. Dauwe, I. Konorov, V. Stepanov, Victor Kim, U. Dersch, A. Lamberto, G. Alkhazov, M. A. Kubantsev, Nikolay Terentyev, M. Mattson, V. P. Kubarovsky, A. I. Sitnikov, Aldo Penzo, Yasar Onel, He Kangling, M. Gaspero, I. Larin, K. D. Nelson, K. Vorwalter, Mithat Kaya, E. McCliment, I. Torres, J. Simon, A. Morelos, P. Pogodin, L. M. Kochenda, Mao Chensheng, J. Kilmer, R. Zukanovich-Funchal, E. M. Leikin, D. Mao, V. Steiner, Simon Kwan, M.Y. Balatz, V. P. Maleev, Victor Golovtsov, A. Kushnirenko, N. P. Kuropatkin, V. V. Molchanov, M. Luksys, L.G. Landsberg, G. B. Dzyubenko, V. A. Prutskoi, H. Krüger, Jürgen Engelfried, M. Svoiski, V. A. Victorov, T. Lungov, Murray Moinester, Nikolay Bondar, G. P. Thomas, and L. Emediato

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Gaussian, State (functional analysis), Poisson distribution, 01 natural sciences, Nuclear physics, Charmed baryons, Baryon, symbols.namesake, 0103 physical sciences, symbols, Fermilab, Charm (quantum number), 010306 general physics
Abstract

We observe a signal for the doubly charmed baryon Ξ c c + in the decay mode Ξ c c + → p D + K − to complement the previous reported decay Ξ c c + → Λ c + K − π + in data from SELEX, the charm hadroproduction experiment at Fermilab. In this new decay mode we observe an excess of 5.62 events over a combinatoric background estimated by event mixing to be 1.38 ± 0.13 events. The mixed background has Gaussian statistics, giving a signal significance of 4.8σ. The Poisson probability that a background fluctuation can produce the apparent signal is less than 6.4 × 10 −4 . The observed mass of this state is 3518 ± 3 MeV / c 2 , consistent with the published result. Averaging the two results gives a mass of 3518.7 ± 1.7 MeV / c 2 . The observation of this new weak decay mode confirms the previous SELEX suggestion that this state is a double charm baryon. The relative branching ratio for these two modes is 0.36 ± 0.21 .

Published
2005

7. Hadronic production of Λ from 600 GeV/c π−, Σ− and p beams

Author

Garcia, F.G., Alkhazov, G., Atamantchouk, A.G., Balatz, M.Y., Bondar, N.F., Cooper, P.S., Dauwe, L.J., Davidenko, G.V., Dersch, U., Dolgolenko, A.G., Dzyubenko, G.B., Edelstein, R., Emediato, L., Endler, A.M.F., Engelfried, J., Eschrich, I., Escobar, C.O., Evdokimov, A.V., Filimonov, I.S., Gaspero, M., Giller, I., Golovtsov, V.L., Gouffon, P., Gülmez, E., He, Kangling, Iori, M., Jun, S.Y., Kaya, M., Kilmer, J., Kim, V.T., Kochenda, L.M., Konorov, I., Kozhevnikov, A.P., Krivshich, A.G., Krüger, H., Kubantsev, M.A., Kubarovsky, V.P., Kulyavtsev, A.I., Kuropatkin, N.P., Kurshetsov, V.F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L.G., Larin, I., Leikin, E.M., Li, Yunshan, Luksys, M., Lungov, T., Maleev, V.P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M.A., Molchanov, V.V., Morelos, A., Nelson, K.D., Nemitkin, A.V., Neoustroev, P.V., Newsom, C., Nilov, A.P., Nurushev, S.B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S.V., Pogodin, P., Procario, M., Prutskoi, V.A., Ramberg, E., Rappazzo, G.F., Razmyslovich, B.V., Rud, V.I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A.I., Skow, D., Smith, V.J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N.K., Thomas, G.P., Uvarov, L.N., Vasiliev, A.N., Vavilov, D.V., Verebryusov, V.S., Victorov, V.A., Vishnyakov, V.E., Vorobyov, A.A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R.

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, media_common.quotation_subject, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Lambda, 01 natural sciences, Asymmetry, Nuclear physics, Baryon, Pion, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, media_common
Abstract

We present data from Fermilab experiment E781 (SELEX) on the hadroproduction asymmetry for anti-Lambda_c compared to Lambda_c+ as a function of xF and pt2 distributions for Lambda_c+. These data were measured in the same apparatus using incident pi-, sigma- beams at 600 GeV/c and proton beam at 540 GeV/c. The asymmetry is studied as a function of xF. In the forward hemisphere with xF >= 0.2 both baryon beams exhibit very strong preference for producing charm baryons rather than charm antibaryons, while the pion beam asymmetry is much smaller. In this energy regime the results show that beam fragments play a major role in the kinematics of Lambda_c formation, as suggested by the leading quark picture.

Published
2002

8. Precision Measurements of theΛc+andD0Lifetimes

Author

A. P. Nilov, Suat Ozkorucuklu, T. Lungov, S. Y. Jun, A. P. Kozhevnikov, M. Procario, J. Kilmer, R. Zukanovich-Funchal, M. Iori, E. M. Leikin, M. Srivastava, A. M. F. Endler, P. Pogodin, A. I. Kulyavtsev, Victor Kim, Murray Moinester, James Russ, V. E. Vishnyakov, He Kangling, L. Stutte, Mao Zhenlin, P. S. Cooper, M. A. Kubantsev, C. R. Newsom, Yasar Onel, V. A. Prutskoi, M. E. Mattson, A. Lamberto, G. F. Rappazzo, G. Alkhazov, Andrey Vasiliev, Nikolay Terentyev, P. Mathew, Lev Uvarov, I. Eschrich, P. V. Neoustroev, E. Ozel, K. Vorwalter, Victor Maleev, V. Steiner, Zhao Wenheng, Mao Chensheng, Zheng Shuchen, A. Kushnirenko, Aldo Penzo, D. Mao, A. Evdokimov, D. V. Vavilov, P. Gouffon, I. Giller, N. P. Kuropatkin, E. J. Ramberg, Jürgen Engelfried, V. P. Kubarovsky, Simon Kwan, G. B. Dzyubenko, M. Gaspero, A. Morelos, M.Y. Balatz, K. D. Nelson, A. I. Sitnikov, E. McCliment, A.V. Nemitkin, Victor Golovtsov, A. Ocherashvili, H. Krüger, A.G. Atamantchouk, S. B. Nurushev, U. Dersch, Nikolay Bondar, R. M. Edelstein, G. P. Thomas, V. I. Rud, L. M. Kochenda, L. Emediato, V. F. Kurshetsov, S. V. Petrenko, L. G. Landsberg, C. O. Escobar, Li Yunshan, D. Skow, J. Lach, A. A. Vorobyov, J. Simon, V. Stepanov, I.S. Filimonov, I. Larin, Erhan Gülmez, B. V. Razmyslovich, L. J. Dauwe, V. S. Verebryusov, V. Matveev, M. Svoiski, V. A. Victorov, F. G. Garcia, Vincent J Smith, A.G. Dolgolenko, J. M. You, G.V. Davidenko, I. Konorov, Mehmet Kaya, V. V. Molchanov, M. Luksys, P. Schiavon, and A. G. Krivshich

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Maximum likelihood, Monte Carlo method, General Physics and Astronomy, Elementary particle, Lambda, Lambda baryon, 01 natural sciences, 7. Clean energy, 3. Good health, 0103 physical sciences, Charm (quantum number), Fermilab, 010306 general physics
Abstract

We report new precision measurements of the lifetimes of the {Lambda}{sup +}{sub c} and D{sup 0} from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 {Lambda}{sup +}{sub c} and 10210 D{sup 0} decays we observe lifetimes of {tau}[{Lambda}{sup +}{sub c}]=198.1{+-} 7.0{+-}5.6 fs and {tau}[D{sup 0}]=407.9{+-}6.0{+-}4 .3 fs .

Published
2001

9. Total cross section measurements with π− , Σ− and protons on nuclei and nucleons around

Author

U. Dersch, N. Akchurin, V.A. Andreev, A.G. Atamantchouk, M. Aykac, M.Y. Balatz, N.F. Bondar, A. Bravar, P.S. Cooper, L.J. Dauwe, G.V. Davidenko, G. Dirkes, A.G. Dolgolenko, D. Dreossi, G.B. Dzyubenko, R. Edelstein, L. Emediato, A.M.F. Endler, J. Engelfried, I. Eschrich, C.O. Escobar, A.V. Evdokimov, I.S. Filimonov, F.G. Garcia, M. Gaspero, S. Gerzon, I. Giller, V.L. Golovtsov, Y.M. Goncharenko, E. Gottschalk, P. Gouffon, O.A. Grachov, E. Gülmez, He Kangling, M. Iori, S.Y. Jun, A.D. Kamenskii, M. Kaya, J. Kilmer, V.T. Kim, L.M. Kochenda, K. Königsmann, I. Konorov, A.P. Kozhevnikov, A.G. Krivshich, H. Krüger, M.A. Kubantsev, V.P. Kubarovsky, A.I. Kulyavtsev, N.P. Kuropatkin, V.F. Kurshetsov, A. Kushnirenko, S. Kwan, J. Lach, A. Lamberto, L.G. Landsberg, I. Larin, E.M. Leikin, Li Yunshan, Li Zhigang, M. Luksys, T. Lungov, D. Magarrel, V.P. Maleev, D. Mao, Mao Chensheng, Mao Zhenlin, S. Masciocchi, P. Mathew, M. Mattson, V. Matveev, E. McCliment, S.L. McKenna, M.A. Moinester, V.V. Molchanov, A. Morelos, V.A. Mukhin, K.D. Nelson, A.V. Nemitkin, P.V. Neoustroev, C. Newsom, A.P. Nilov, S.B. Nurushev, A. Ocherashvili, G. Oleynik, Y. Onel, E. Ozel, S. Ozkorucuklu, S. Patrichev, A. Penzo, S.I. Petrenko, P. Pogodin, B. Povh, M. Procario, V.A. Prutskoi, E. Ramberg, G.F. Rapazzo, B.V. Razmyslovich, V.I. Rud, J. Russ, Y. Scheglov, P. Schiavon, V.K. Semyatchkin, J. Simon, A.I. Sitnikov, D. Skow, V.J. Smith, M. Srivastava, V. Steiner, V. Stepanov, L. Stutte, M. Svoiski, N.K. Terentyev, G.P. Thomas, L.N. Uvarov, A.N. Vasiliev, D.V. Vavilov, V.S. Verebryusov, V.A. Victorov, V.E. Vishnyakov, A.A. Vorobyov, K. Vorwalter, J. You, Zhao Wenheng, Zheng Shuchen, and R. Zukanovich-Funchal

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, chemistry.chemical_element, Sigma, 7. Clean energy, 01 natural sciences, Copper, respiratory tract diseases, Nuclear physics, Momentum, Cross section (physics), chemistry, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Beryllium, Nuclear Experiment, 010306 general physics, Nucleon, Carbon
Abstract

Total cross sections for Sigma- and pi- on beryllium, carbon, polyethylene and copper as well as total cross sections for protons on beryllium and carbon have been measured in a broad momentum range around 600GeV/c. These measurements were performed with a transmission technique adapted to the SELEX hyperon-beam experiment at Fermilab. We report on results obtained for hadron-nucleus cross sections and on results for sigma_tot(Sigma- N) and sigma_tot(pi- N), which were deduced from nuclear cross sections.

Published
2000

10. Observation of a Narrow Charm-Strange MesonDsJ+(2632)→Ds+ηandD0K+

Author

M. Iori, G. B. Dzyubenko, I. Konorov, P. Pogodin, M. Svoiski, V. A. Victorov, Murray Moinester, Jürgen Engelfried, V. V. Molchanov, T. Lungov, S. Y. Jun, M. Luksys, C. O. Escobar, Simon Kwan, L.G. Landsberg, J. Lach, A. A. Vorobyov, A. I. Sitnikov, A. P. Nilov, H. Krüger, M.Y. Balatz, I. Larin, F. G. Garcia, U. Dersch, J. Kilmer, G.V. Davidenko, A. V. Evdokimov, Viktor Matveev, I.S. Filimonov, K. D. Nelson, P. S. Cooper, C. R. Newsom, Li Yunshan, A. I. Kulyavtsev, V. F. Kurshetsov, R. Zukanovich-Funchal, S. V. Petrenko, E. J. Ramberg, E. M. Leikin, M. E. Mattson, G. F. Rappazzo, Vincent J Smith, A.G. Dolgolenko, Mao Zhenlin, B. V. Razmyslovich, A. Lamberto, K. Vorwalter, V. E. Vishnyakov, E. Vázquez-Jáuregui, Lev Uvarov, J. Simon, L. J. Dauwe, J. M. You, Aldo Penzo, V. P. Maleev, Nikolay Terentyev, Yasar Onel, A.G. Atamantchouk, Mehmet Kaya, Victor Golovtsov, P. Schiavon, A. M. F. Endler, A. Ocherashvili, Suat Ozkorucuklu, M. Gaspero, D. Skow, A. Morelos, P. Gouffon, Nikolay Bondar, G. P. Thomas, Mao Chensheng, A. P. Kozhevnikov, E. McCliment, I. Torres, Ugur Akgun, Erhan Gülmez, A. G. Krivshich, L. Emediato, A.V. Nemitkin, D. Mao, He Kangling, Andrey Vasiliev, M. A. Kubantsev, V. I. Rud, D. V. Vavilov, L. M. Kochenda, V. S. Verebryusov, S. B. Nurushev, A. Kushnirenko, N. P. Kuropatkin, Victor Kim, G. Alkhazov, V. P. Kubarovsky, M. Procario, L. Stutte, M. Srivastava, James Russ, V. Stepanov, P. Mathew, I. Eschrich, V. Steiner, I. Giller, R. M. Edelstein, Ahmet S. Ayan, P. V. Neoustroev, E. Ozel, Zhao Wenheng, Zheng Shuchen, and J. Amaro-Reyes

Subjects
Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, General Physics and Astronomy, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, Charm (quantum number), Nuclear Experiment, 010306 general physics
Abstract

We report the first observation of a charm-strange meson D(+)(sJ)(2632) at a mass of 2632.5+/-1.7 MeV/c(2) in data from SELEX, the charm hadro-production experiment E781 at Fermilab. This state is seen in two decay modes, D(+)(s)eta and D0K+. In the D(+)(s)eta decay mode we observe a peak with 101 events over a combinatoric background of 54.9 events at a mass of 2635.4+/-3.3 MeV/c(2). There is a corresponding peak of 21 events over a background of 6.9 at 2631.5+/-2.0 MeV/c(2) in the decay mode D0K+. The decay width of this state is

Published
2004

11. Observation of a narrow charm-strange meson D-sJ(+)(2632)-> D-s(+)eta and (DK+)-K-0

Author

A V, Evdokimov, U, Akgun, G, Alkhazov, J, Amaro-Reyes, A G, Atamantchouk, A S, Ayan, M Y, Balatz, N F, Bondar, P S, Cooper, L J, Dauwe, G V, Davidenko, U, Dersch, A G, Dolgolenko, G B, Dzyubenko, R, Edelstein, L, Emediato, A M F, Endler, J, Engelfried, I, Eschrich, C O, Escobar, I S, Filimonov, F G, Garcia, M, Gaspero, I, Giller, V L, Golovtsov, P, Gouffon, E, Gülmez, He, Kangling, M, Iori, S Y, Jun, M, Kaya, J, Kilmer, V T, Kim, L M, Kochenda, I, Konorov, A P, Kozhevnikov, A G, Krivshich, H, Krüger, M A, Kubantsev, V P, Kubarovsky, A I, Kulyavtsev, N P, Kuropatkin, V F, Kurshetsov, A, Kushnirenko, S, Kwan, J, Lach, A, Lamberto, L G, Landsberg, I, Larin, E M, Leikin, Li, Yunshan, M, Luksys, T, Lungov, V P, Maleev, D, Mao, Mao, Chensheng, Mao, Zhenlin, P, Mathew, M, Mattson, V, Matveev, E, McCliment, M A, Moinester, V V, Molchanov, A, Morelos, K D, Nelson, A V, Nemitkin, P V, Neoustroev, C, Newsom, A P, Nilov, S B, Nurushev, A, Ocherashvili, Y, Onel, E, Ozel, S, Ozkorucuklu, A, Penzo, S V, Petrenko, P, Pogodin, M, Procario, E, Ramberg, G F, Rappazzo, B V, Razmyslovich, V I, Rud, J, Russ, P, Schiavon, J, Simon, A I, Sitnikov, D, Skow, V J, Smith, M, Srivastava, V, Steiner, V, Stepanov, L, Stutte, M, Svoiski, N K, Terentyev, G P, Thomas, I, Torres, L N, Uvarov, A N, Vasiliev, D V, Vavilov, E, Vázquez-Jáuregui, V S, Verebryusov, V A, Victorov, V E, Vishnyakov, A A, Vorobyov, K, Vorwalter, J, You, Zhao, Wenheng, Zheng, Shuchen, and R, Zukanovich-Funchal

Abstract

We report the first observation of a charm-strange meson D(+)(sJ)(2632) at a mass of 2632.5+/-1.7 MeV/c(2) in data from SELEX, the charm hadro-production experiment E781 at Fermilab. This state is seen in two decay modes, D(+)(s)eta and D0K+. In the D(+)(s)eta decay mode we observe a peak with 101 events over a combinatoric background of 54.9 events at a mass of 2635.4+/-3.3 MeV/c(2). There is a corresponding peak of 21 events over a background of 6.9 at 2631.5+/-2.0 MeV/c(2) in the decay mode D0K+. The decay width of this state is17 MeV/c(2) at 90% confidence level. The relative branching ratio Gamma(D0K+)/Gamma(D(+)(s)eta) is 0.14+/-0.06. The mechanism that keeps this state narrow is unclear. Its decay pattern is also unusual, being dominated by the D(+)(s)eta decay mode.

Published
2004

12. First measurement ofπ−e→π−eγpion virtual compton scattering

Author

A. Ocherashvili, G. Alkhazov, A. G. Atamantchouk, M. Y. Balatz, N. F. Bondar, P. S. Cooper, L. J. Dauwe, G. V. Davidenko, U. Dersch, A. G. Dolgolenko, G. B. Dzyubenko, R. Edelstein, L. Emediato, A. M. F. Endler, J. Engelfried, I. Eschrich, C. O. Escobar, A. V. Evdokimov, I. S. Filimonov, F. G. Garcia, M. Gaspero, I. Giller, V. L. Golovtsov, P. Gouffon, E. Gülmez, He Kangling, M. Iori, S. Y. Jun, M. Kaya, J. Kilmer, V. T. Kim, L. M. Kochenda, I. Konorov, A. P. Kozhevnikov, A. G. Krivshich, H. Krüger, M. A. Kubantsev, V. P. Kubarovsky, A. I. Kulyavtsev, N. P. Kuropatkin, V. F. Kurshetsov, A. Kushnirenko, S. Kwan, J. Lach, A. Lamberto, L. G. Landsberg, I. Larin, E. M. Leikin, Li Yunshan, M. Luksys, T. Lungov, V. P. Maleev, D. Mao, Mao Chensheng, Mao Zhenlin, P. Mathew, M. Mattson, V. Matveev, E. McCliment, M. A. Moinester, V. V. Molchanov, A. Morelos, K. D. Nelson, A. V. Nemitkin, P. V. Neoustroev, C. Newsom, A. P. Nilov, S. B. Nurushev, Y. Onel, E. Ozel, S. Ozkorucuklu, A. Penzo, S. I. Petrenko, P. Pogodin, B. Pouh, M. Procario, V. A. Prutskoi, E. Ramberg, G. F. Rappazzo, B. V. Razmyslovich, V. I. Rud, J. Russ, P. Schiavon, J. Simon, A. I. Sitnikov, D. Skow, V. J. Smith, M. Srivastava, V. Steiner, V. Stepanov, L. Stutte, M. Svoiski, N. K. Terentyev, G. P. Thomas, L. N. Uvarov, A. N. Vasiliev, D. V. Vavilov, V. S. Verebryusov, V. A. Victorov, V. E. Vishnyakov, A. A. Vorobyov, K. Vorwalter, J. You, Zhao Wenheng, Zheng Shuchen, and R. Zukanovich-Funchal

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Chiral perturbation theory, 010308 nuclear & particles physics, Monte Carlo method, Compton scattering, Sigma, Electron, 01 natural sciences, Nuclear physics, Cross section (physics), Pion, 0103 physical sciences, High Energy Physics::Experiment, Fermilab, 010306 general physics
Abstract

Pion virtual compton scattering (VCS) via the reaction pi(-)e-->pi(-)egamma was observed in the Fermilab E781 SELEX experiment. SELEX used a 600 GeV/c pi(-) beam incident on target atomic electrons, detecting the incident pi(-) and the final state pi(-), electron and gamma. Theoretical predictions based on chiral perturbation theory are incorporated into a Monte Carlo simulation of the experiment and are compared to the data. The number of reconstructed events (=9) and their distribution with respect to the kinematic variables (for the kinematic region studied) are in reasonable accord with the predictions. The corresponding pi(-) VCS experimental cross section is sigma=38.8+/-13 nb, in agreement with the theoretical expectation of sigma=34.7 nb.

Published
2002

13. First Observation of the Doubly Charmed BaryonΞcc+

Author

Mithat Kaya, Nikolay Bondar, G. P. Thomas, E. McCliment, L. Emediato, U. Dersch, D. V. Vavilov, B. V. Razmyslovich, L. M. Kochenda, J. M. You, L. J. Dauwe, Murray Moinester, P. Mathew, M. Gaspero, I. Eschrich, J. Lach, A. A. Vorobyov, H. Krüger, I.S. Filimonov, A. Morelos, M. Luksys, L.G. Landsberg, V. Steiner, T. Lungov, S. Y. Jun, Victor Kim, Yasar Onel, V. E. Vishnyakov, Erhan Gülmez, V. S. Verebryusov, I. Giller, D. Skow, He Kangling, Vincent J Smith, A.G. Dolgolenko, G. Alkhazov, Mao Zhenlin, K. Vorwalter, M. A. Kubantsev, V. P. Maleev, I. Konorov, Victor Golovtsov, A. Ocherashvili, V. I. Rud, M. Svoiski, V. A. Victorov, P. S. Cooper, C. R. Newsom, A. Lamberto, V. V. Molchanov, Nikolay Terentyev, V. A. Prutskoi, M. Mattson, R. M. Edelstein, A. V. Evdokimov, Viktor Matveev, V. P. Kubarovsky, G. F. Rappazzo, A. I. Kulyavtsev, F. G. Garcia, J. Kilmer, Li Yunshan, P. Gouffon, A. Kushnirenko, R. Zukanovich-Funchal, M. Procario, E. M. Leikin, Lev Uvarov, N. P. Kuropatkin, A.G. Atamantchouk, I. Larin, P. V. Neoustroev, E. Ozel, L. Stutte, Zhao Wenheng, Jürgen Engelfried, M. Srivastava, A. M. F. Endler, M. Iori, Zheng Shuchen, K. D. Nelson, P. Pogodin, James Russ, J. Simon, A. P. Kozhevnikov, V. Stepanov, A. I. Sitnikov, V. F. Kurshetsov, S. V. Petrenko, Aldo Penzo, Andrey Vasiliev, Suat Ozkorucuklu, A. P. Nilov, G.V. Davidenko, P. Schiavon, A. G. Krivshich, E. Oliveira, G. B. Dzyubenko, C. O. Escobar, E. J. Ramberg, A.V. Nemitkin, S. B. Nurushev, Mao Chensheng, D. Mao, Simon Kwan, and M.Y. Balatz

Subjects
Physics, Particle physics, Meson, 010308 nuclear & particles physics, Hyperon, General Physics and Astronomy, Lambda baryon, 7. Clean energy, 01 natural sciences, Xi baryon, Charmed baryons, Baryon, Nuclear physics, Particle decay, Pion, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract

We observe a signal for the doubly charmed baryon Xi(+)(cc) in the charged decay mode Xi(+)(cc)-->Lambda(+)(c)K-pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.1+/-0.5 events, a statistical significance of 6.3sigma. The observed mass of this state is 3519+/-1 MeV/c(2). The Gaussian mass width of this state is 3 MeV/c(2), consistent with resolution; its lifetime is less than 33 fs at 90% confidence.

Published
2002

14. First observation of the doubly charmed baryon Xi(+)(cc)

Author

M, Mattson, G, Alkhazov, A G, Atamantchouk, M Y, Balatz, N F, Bondar, P S, Cooper, L J, Dauwe, G V, Davidenko, U, Dersch, A G, Dolgolenko, G B, Dzyubenko, R, Edelstein, L, Emediato, A M F, Endler, J, Engelfried, I, Eschrich, C O, Escobar, A V, Evdokimov, I S, Filimonov, F G, Garcia, M, Gaspero, I, Giller, V L, Golovtsov, P, Gouffon, E, Gülmez, He, Kangling, M, Iori, S Y, Jun, M, Kaya, J, Kilmer, V T, Kim, L M, Kochenda, I, Konorov, A P, Kozhevnikov, A G, Krivshich, H, Krüger, M A, Kubantsev, V P, Kubarovsky, A I, Kulyavtsev, N P, Kuropatkin, V F, Kurshetsov, A, Kushnirenko, S, Kwan, J, Lach, A, Lamberto, L G, Landsberg, I, Larin, E M, Leikin, Li, Yunshan, M, Luksys, T, Lungov, V P, Maleev, D, Mao, Mao, Chensheng, Mao, Zhenlin, P, Mathew, V, Matveev, E, McCliment, M A, Moinester, V V, Molchanov, A, Morelos, K D, Nelson, A V, Nemitkin, P V, Neoustroev, C, Newsom, A P, Nilov, S B, Nurushev, A, Ocherashvili, E, Oliveira, Y, Onel, E, Ozel, S, Ozkorucuklu, A, Penzo, S V, Petrenko, P, Pogodin, M, Procario, V A, Prutskoi, E, Ramberg, G F, Rappazzo, B V, Razmyslovich, V I, Rud, J, Russ, P, Schiavon, J, Simon, A I, Sitnikov, D, Skow, V J, Smith, M, Srivastava, V, Steiner, V, Stepanov, L, Stutte, M, Svoiski, N K, Terentyev, G P, Thomas, L N, Uvarov, A N, Vasiliev, D V, Vavilov, V S, Verebryusov, V A, Victorov, V E, Vishnyakov, A A, Vorobyov, K, Vorwalter, J, You, Zhao, Wenheng, Zheng, Shuchen, and R, Zukanovich-Funchal

Abstract

We observe a signal for the doubly charmed baryon Xi(+)(cc) in the charged decay mode Xi(+)(cc)--Lambda(+)(c)K-pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.1+/-0.5 events, a statistical significance of 6.3sigma. The observed mass of this state is 3519+/-1 MeV/c(2). The Gaussian mass width of this state is 3 MeV/c(2), consistent with resolution; its lifetime is less than 33 fs at 90% confidence.

Published
2002

15. Measurement of the Ds lifetime

Author

M Iori, G Alkhazov, A.G Atamantchouk, M.Y Balatz, N.F Bondar, P.S Cooper, L.J Dauwe, G.V Davidenko, U Dersch, A.G Dolgolenko, G.B Dzyubenko, R Edelstein, L Emediato, A.M.F Endler, J Engelfried, I Eschrich, C.O Escobar, A.V Evdokimov, I.S Filimonov, F.G Garcia, M Gaspero, I Giller, V.L Golovtsov, P Gouffon, E Gülmez, He Kangling, S.Y Jun, M Kaya, J Kilmer, V.T Kim, L.M Kochenda, I Konorov, A.P Kozhevnikov, A.G Krivshich, H Krüger, M.A Kubantsev, V.P Kubarovsky, A.I Kulyavtsev, N.P Kuropatkin, V.F Kurshetsov, A Kushnirenko, S Kwan, J Lach, A Lamberto, L.G Landsberg, I Larin, E.M Leikin, Y Li, M Luksys, T Lungov, V.P Maleev, D Mao, C Mao, Z Mao, P Mathew, M Mattson, V Matveev, E McCliment, M.A Moinester, V.V Molchanov, A Morelos, K.D Nelson, A.V Nemitkin, P.V Neoustroev, C Newsom, A.P Nilov, S.B Nurushev, A Ocherashvili, Y Onel, E Ozel, S Ozkorucuklu, A Penzo, S.V Petrenko, P Pogodin, M Procario, V.A Prutskoi, E Ramberg, G.F Rappazzo, B.V Razmyslovich, V.I Rud, J Russ, P Schiavon, J Simon, A.I Sitnikov, D Skow, V.J Smith, M Srivastava, V Steiner, V Stepanov, L Stutte, M Svoiski, N.K Terentyev, G.P Thomas, L.N Uvarov, A.N Vasiliev, D.V Vavilov, V.S Verebryusov, V.A Victorov, V.E Vishnyakov, A.A Vorobyov, K Vorwalter, J You, W Zhaog, S Zheng, R Zukanovich-Funchal, Ball State University, Bogazici University, Carnegie-Mellon University, Centro Brasileiro de Pesquisas F�sicas, Fermilab, Institute for High Energy Physics, Institute of High Energy Physics, Institute of Theoretical and Experimental Physics, Max-Planck-Institut für Kernphysik, Moscow State University, Petersburg Nuclear Physics Institute, Tel Aviv University, Universidad Autónoma de San Luis Potosí, Universidade Federal da Paraíba (UFPB), University of Bristol, University of Iowa, University of Michigan-Flint, University of Rome 'La Sapienza' and INFN, Universidade de São Paulo (USP), University of Trieste and INFN, Infinion, Imperial College, Universidade Estadual de Campinas (UNICAMP), Technische Universität München, The Boston Consulting Group, Lucent Technologies, Universidade Estadual Paulista (UNESP), SPSS Inc, University of Alabama at Birmingham, DOE, Siemens Medizintechnik, and Deutsche Bank AG

Subjects
Physics, High Energy Physics - Experiment (hep-ex), Nuclear and High Energy Physics, Particle physics, Spectrometer, Meson, 010308 nuclear & particles physics, 0103 physical sciences, FOS: Physical sciences, Sigma, 010306 general physics, 01 natural sciences, High Energy Physics - Experiment
Abstract

We report precise measurement of the Ds meson lifetime. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/c Sigma-, pi- and p beams. The measurement has been done using 918 reconstructed Ds. The lifetime of the Ds is measured to be 472.5 +- 17.2 +- 6.6 fs, using K*(892)0K+- and phi pi+- decay modes. The lifetime ratio of Ds to D0 is 1.145+-0.049., Comment: 5 pages, 2 figures submitted to Phys. Lett. B

Published
2001

16. Polarization ofΣ+hyperons produced by 800 GeV/c protons on Cu and Be

Author

Pogodin, P., primary, Alkhazov, G., additional, Atamantchouk, A. G., additional, Balatz, M. Y., additional, Bondar, N. F., additional, Cooper, P. S., additional, Dauwe, L. J., additional, Davidenko, G. V., additional, Dersch, U., additional, Dolgolenko, A. G., additional, Dzyubenko, G. B., additional, Edelstein, R., additional, Emediato, L., additional, Endler, A. M. F., additional, Engelfried, J., additional, Eschrich, I., additional, Escobar, C. O., additional, Evdokimov, A. V., additional, Filimonov, I. S., additional, Garcia, F. G., additional, Gaspero, M., additional, Giller, I., additional, Golovtsov, V. L., additional, Gouffon, P., additional, Gülmez, E., additional, He, Kangling, additional, Iori, M., additional, Jun, S. Y., additional, Kaya, M., additional, Kilmer, J., additional, Kim, V. T., additional, Kochenda, L. M., additional, Konorov, I., additional, Kozhevnikov, A. P., additional, Krivshich, A. G., additional, Krüger, H., additional, Kubantsev, M. A., additional, Kubarovsky, V. P., additional, Kulyavtsev, A. I., additional, Kuropatkin, N. P., additional, Kurshetsov, V. F., additional, Kushnirenko, A., additional, Kwan, S., additional, Lach, J., additional, Lamberto, A., additional, Landsberg, L. G., additional, Larin, I., additional, Leikin, E. M., additional, Li, Yushan, additional, Luksys, M., additional, Lungov, T., additional, Maleev, V. P., additional, Mao, Chensheng, additional, Mao, D., additional, Mao, Zhenlin, additional, Mathew, P., additional, Mattson, M., additional, Matveev, V., additional, McCliment, E., additional, Moinester, M. A., additional, Molchanov, V. V., additional, Morelos, A., additional, Nelson, K. D., additional, Nemitkin, A. V., additional, Neoustroev, P. V., additional, Newsom, C., additional, Nilov, A. P., additional, Nurushev, S. B., additional, Ocherashvili, A., additional, de Oliveira, E., additional, Onel, Y., additional, Ozel, E., additional, Ozkurucuklu, S., additional, Penzo, A., additional, Petrenko, S. V., additional, Procario, M., additional, Prutskoi, V. A., additional, Ramberg, E., additional, Rappazzo, G. F., additional, Razmyslovich, B. V., additional, Rud, V. I., additional, Russ, J., additional, Schiavon, P., additional, Simon, J., additional, Sitnikov, A. I., additional, Skow, D., additional, Smith, V. J., additional, Srivastava, M., additional, Steiner, V., additional, Stepanov, V., additional, Stutte, L., additional, Svoiski, M., additional, Terentyev, N. K., additional, Thomas, G. P., additional, Uvarov, L. N., additional, Vasiliev, A. N., additional, Vavilov, D. V., additional, Verebryusov, V. S., additional, Victorov, V. A., additional, Vishnyakov, V. E., additional, Vorobyov, A. A., additional, Vorwalter, K., additional, You, J., additional, Zhao, Wenheng, additional, Zheng, Shuchen, additional, and Zukanovich-Funchal, R., additional

Published
2004
Full Text
View/download PDF

17. Production asymmetry of Ds from 600 GeV/c Σ− and π− beam

Author

Kaya, M, primary, Alkhazov, G, additional, Atamantchouk, A.G, additional, Balatz, M.Y, additional, Bondar, N.F, additional, Cooper, P.S, additional, Dauwe, L.J, additional, Davidenko, G.V, additional, Dersch, U, additional, Dolgolenko, A.G, additional, Dzyubenko, G.B, additional, Edelstein, R, additional, Emediato, L, additional, Endler, A.M.F, additional, Engelfried, J, additional, Eschrich, I, additional, Escobar, C.O, additional, Evdokimov, A.V, additional, Filimonov, I.S, additional, Garcia, F.G, additional, Gaspero, M, additional, Giller, I, additional, Golovtsov, V.L, additional, Gouffon, P, additional, Gülmez, E, additional, He, Kangling, additional, Iori, M, additional, Jun, S.Y, additional, Kilmer, J, additional, Kim, V.T, additional, Kochenda, L.M, additional, Konorov, I, additional, Kozhevnikov, A.P, additional, Krivshich, A.G, additional, Krüger, H, additional, Kubantsev, M.A, additional, Kubarovsky, V.P, additional, Kulyavtsev, A.I, additional, Kuropatkin, N.P, additional, Kurshetsov, V.F, additional, Kushnirenko, A, additional, Kwan, S, additional, Lach, J, additional, Lamberto, A, additional, Landsberg, L.G, additional, Larin, I, additional, Leikin, E.M, additional, Li, Yunshan, additional, Luksys, M, additional, Lungov, T, additional, Maleev, V.P, additional, Mao, D, additional, Mao, Chensheng, additional, Mao, Zhenlin, additional, Mathew, P, additional, Mattson, M, additional, Matveev, V, additional, McCliment, E, additional, Moinester, M.A, additional, Molchanov, V.V, additional, Morelos, A, additional, Nelson, K.D, additional, Nemitkin, A.V, additional, Neoustroev, P.V, additional, Newsom, C, additional, Nilov, A.P, additional, Nurushev, S.B, additional, Ocherashvili, A, additional, Onel, Y, additional, Ozel, E, additional, Ozkorucuklu, S, additional, Penzo, A, additional, Petrenko, S.V, additional, Pogodin, P, additional, Procario, M, additional, Prutskoi, V.A, additional, Ramberg, E, additional, Rappazzo, G.F, additional, Razmyslovich, B.V, additional, Rud, V.I, additional, Russ, J, additional, Schiavon, P, additional, Simon, J, additional, Sitnikov, A.I, additional, Skow, D, additional, Smith, V.J, additional, Srivastava, M, additional, Steiner, V, additional, Stepanov, V, additional, Stutte, L, additional, Svoiski, M, additional, Terentyev, N.K, additional, Thomas, G.P, additional, Uvarov, L.N, additional, Vasiliev, A.N, additional, Vavilov, D.V, additional, Verebryusov, V.S, additional, Victorov, V.A, additional, Vishnyakov, V.E, additional, Vorobyov, A.A, additional, Vorwalter, K, additional, You, J, additional, Zhao, Wenheng, additional, Zheng, Shuchen, additional, and Zukanovich-Funchal, R, additional

Published
2003
Full Text
View/download PDF

18. Measurement of the Σ− charge radius by Σ−–electron elastic scattering

Author

Eschrich, I, primary, Krüger, H, additional, Simon, J, additional, Vorwalter, K, additional, Alkhazov, G, additional, Atamantchouk, A.G, additional, Balatz, M.Y, additional, Bondar, N.F, additional, Cooper, P.S, additional, Dauwe, L.J, additional, Davidenko, G.V, additional, Dersch, U, additional, Dirkes, G, additional, Dolgolenko, A.G, additional, Dzyubenko, G.B, additional, Edelstein, R, additional, Emediato, L, additional, Endler, A.M.F, additional, Engelfried, J, additional, Escobar, C.O, additional, Evdokimov, A.V, additional, Filimonov, I.S, additional, Garcia, F.G, additional, Gaspero, M, additional, Giller, I, additional, Golovtsov, V.L, additional, Gouffon, P, additional, Gülmez, E, additional, He, Kangling, additional, Iori, M, additional, Jun, S.Y, additional, Kaya, M, additional, Kilmer, J, additional, Kim, V.T, additional, Kochenda, L.M, additional, Königsmann, K, additional, Konorov, I, additional, Kozhevnikov, A.P, additional, Krivshich, A.G, additional, Kubantsev, M.A, additional, Kubarovsky, V.P, additional, Kulyavtsev, A.I, additional, Kuropatkin, N.P, additional, Kurshetsov, V.F, additional, Kushnirenko, A, additional, Kwan, S, additional, Lach, J, additional, Lamberto, A, additional, Landsberg, L.G, additional, Larin, I, additional, Leikin, E.M, additional, Li, Yunshan, additional, Luksys, M, additional, Lungov, T, additional, Maleev, V.P, additional, Mao, D, additional, Mao, Chensheng, additional, Mao, Zhenlin, additional, Masciocchi, S, additional, Mathew, P, additional, Mattson, M, additional, Matveev, V, additional, McCliment, E, additional, Moinester, M.A, additional, Molchanov, V.V, additional, Morelos, A, additional, Nelson, K.D, additional, Nemitkin, A.V, additional, Neoustroev, P.V, additional, Newsom, C, additional, Nilov, A.P, additional, Nurushev, S.B, additional, Ocherashvili, A, additional, Onel, Y, additional, Ozel, E, additional, Ozkorucuklu, S, additional, Penzo, A, additional, Petrenko, S.V, additional, Pogodin, P, additional, Povh, B, additional, Procario, M, additional, Prutskoi, V.A, additional, Ramberg, E, additional, Rappazzo, G.F, additional, Razmyslovich, B.V, additional, Rud, V.I, additional, Russ, J, additional, Scheglov, Y, additional, Schiavon, P, additional, Sitnikov, A.I, additional, Skow, D, additional, Smith, V.J, additional, Srivastava, M, additional, Steiner, V, additional, Stepanov, V, additional, Stutte, L, additional, Svoiski, M, additional, Terentyev, N.K, additional, Thomas, G.P, additional, Uvarov, L.N, additional, Vasiliev, A.N, additional, Vavilov, D.V, additional, Verebryusov, V.S, additional, Victorov, V.A, additional, Vishnyakov, V.E, additional, Vorobyov, A.A, additional, You, J, additional, Zhao, Wenheng, additional, Zheng, Shuchen, additional, and Zukanovich-Funchal, R, additional

Published
2001
Full Text
View/download PDF

19. Radiative decay width of the a2(1320)− meson

Author

Molchanov, V.V., primary, Alkhazov, G., additional, Atamantchouk, A.G., additional, Balatz, M.Y., additional, Bondar, N.F., additional, Casey, D., additional, Cooper, P.S., additional, Dauwe, L.J., additional, Davidenko, G.V., additional, Dersch, U., additional, Dolgolenko, A.G., additional, Dzyubenko, G.B., additional, Edelstein, R., additional, Emediato, L., additional, Endler, A.M.F., additional, Engelfried, J., additional, Eschrich, I., additional, Escobar, C.O., additional, Evdokimov, A.V., additional, Ferbel, T., additional, Filimonov, I.S., additional, Garcia, F.G., additional, Gaspero, M., additional, Giller, I., additional, Golovtsov, V.L., additional, Gouffon, P., additional, G, E., additional, Hammer, C., additional, He, Kangling, additional, Iori, M., additional, Jun, S.Y., additional, Kaya, M., additional, Kilmer, J., additional, Kim, V.T., additional, Kochenda, L.M., additional, Konorov, I., additional, Kozhevnikov, A.P., additional, Krivshich, A.G., additional, Kr, H., additional, Kubantsev, M.A., additional, Kubarovsky, V.P., additional, Kulyavtsev, A.I., additional, Kuropatkin, N.P., additional, Kurshetsov, V.F., additional, Kushnirenko, A., additional, Kwan, S., additional, Lach, J., additional, Lamberto, A., additional, Landsberg, L.G., additional, Larin, I., additional, Leikin, E.M., additional, Li, Yunshan, additional, Luksys, M., additional, Lungov, T., additional, Maleev, V.P., additional, Mao, D., additional, Mao, Chensheng, additional, Mao, Zhenlin, additional, Mathew, P., additional, Mattson, M., additional, Matveev, V., additional, McCliment, E., additional, Moinester, M.A., additional, Morelos, A., additional, Mukhin, V.A., additional, Nelson, K.D., additional, Nemitkin, A.V., additional, Neoustroev, P.V., additional, Newsom, C., additional, Nilov, A.P., additional, Nurushev, S.B., additional, Ocherashvili, A., additional, Onel, Y., additional, Ozel, E., additional, Ozkorucuklu, S., additional, Penzo, A., additional, Petrenko, S.V., additional, Pogodin, P., additional, Procario, M., additional, Prutskoi, V.A., additional, Ramberg, E., additional, Rappazzo, G.F., additional, Razmyslovich, B.V., additional, Rud, V.I., additional, Russ, J., additional, Schiavon, P., additional, Simon, J., additional, Sitnikov, A.I., additional, Skow, D., additional, Slattery, P., additional, Smith, V.J., additional, Srivastava, M., additional, Steiner, V., additional, Stepanov, V., additional, Stutte, L., additional, Svoiski, M., additional, Terentyev, N.K., additional, Thomas, G.P., additional, Uvarov, L.N., additional, Vasiliev, A.N., additional, Vavilov, D.V., additional, Verebryusov, V.S., additional, Victorov, V.A., additional, Vishnyakov, V.E., additional, Vorobyov, A.A., additional, Vorwalter, K., additional, You, J., additional, Zhao, Wenheng, additional, Zheng, Shuchen, additional, Zhu, Z.H., additional, Zielinski, M., additional, and Zukanovich, R., additional

Published
2001
Full Text
View/download PDF

20. Upper limit on the decay Σ(1385)−→Σ−γ and cross section for γΣ−→Λπ−

Author

Molchanov, V.V., Alkhazov, G., Atamantchouk, A.G., Balatz, M.Y., Bondar, N.F., Casey, D., Cooper, P.S., Dauwe, L.J., Davidenko, G.V., Dersch, U., Dolgolenko, A.G., Dzyubenko, G.B., Edelstein, R., Emediato, L., Endler, A.M.F., Engelfried, J., Eschrich, I., Escobar, C.O., Evdokimov, A.V., Ferbel, T., Filimonov, I.S., Garcia, F.G., Gaspero, M., Giller, I., Golovtsov, V.L., Gouffon, P., Gülmez, E., Hammer, C., He, Kangling, Iori, M., Jun, S.Y., Kaya, M., Kilmer, J., Kim, V.T., Kochenda, L.M., Konorov, I., Kozhevnikov, A.P., Krivshich, A.G., Krüger, H., Kubantsev, M.A., Kubarovsky, V.P., Kulyavtsev, A.I., Kuropatkin, N.P., Kurshetsov, V.F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L.G., Larin, I., Leikin, E.M., Li, Yunshan, Luksys, M., Lungov, T., Maleev, V.P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M.A., Morelos, A., Mukhin, V.A., Nelson, K.D., Nemitkin, A.V., Neoustroev, P.V., Newsom, C., Nilov, A.P., Nurushev, S.B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S.V., Pogodin, P., Procario, M., Prutskoi, V.A., Ramberg, E., Rappazzo, G.F., Razmyslovich, B.V., Rud, V.I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A.I., Skow, D., Slattery, P., Smith, V.J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N.K., Thomas, G.P., Uvarov, L.N., Vasiliev, A.N., Vavilov, D.V., Verebryusov, V.S., Victorov, V.A., Vishnyakov, V.E., Vorobyov, A.A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, Zhu, Z.H., Zielinski, M., and Zukanovich-Funchal, R.

Published
2004
Full Text
View/download PDF

21. Hadronic production of Λc from 600 GeV/cπ−, Σ− and p beams

Author

Garcia, F.G., Alkhazov, G., Atamantchouk, A.G., Balatz, M.Y., Bondar, N.F., Cooper, P.S., Dauwe, L.J., Davidenko, G.V., Dersch, U., Dolgolenko, A.G., Dzyubenko, G.B., Edelstein, R., Emediato, L., Endler, A.M.F., Engelfried, J., Eschrich, I., Escobar, C.O., Evdokimov, A.V., Filimonov, I.S., Gaspero, M., Giller, I., Golovtsov, V.L., Gouffon, P., Gülmez, E., He, Kangling, Iori, M., Jun, S.Y., Kaya, M., Kilmer, J., Kim, V.T., Kochenda, L.M., Konorov, I., Kozhevnikov, A.P., Krivshich, A.G., Krüger, H., Kubantsev, M.A., Kubarovsky, V.P., Kulyavtsev, A.I., Kuropatkin, N.P., Kurshetsov, V.F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L.G., Larin, I., Leikin, E.M., Li, Yunshan, Luksys, M., Lungov, T., Maleev, V.P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M.A., Molchanov, V.V., Morelos, A., Nelson, K.D., Nemitkin, A.V., Neoustroev, P.V., Newsom, C., Nilov, A.P., Nurushev, S.B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S.V., Pogodin, P., Procario, M., Prutskoi, V.A., Ramberg, E., Rappazzo, G.F., Razmyslovich, B.V., Rud, V.I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A.I., Skow, D., Smith, V.J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N.K., Thomas, G.P., Uvarov, L.N., Vasiliev, A.N., Vavilov, D.V., Verebryusov, V.S., Victorov, V.A., Vishnyakov, V.E., Vorobyov, A.A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R.

Published
2002
Full Text
View/download PDF

22. Measurement of the Σ−charge radius by Σ−–electron elastic scattering

Author

Eschrich, I, Krüger, H, Simon, J, Vorwalter, K, Alkhazov, G, Atamantchouk, A.G, Balatz, M.Y, Bondar, N.F, Cooper, P.S, Dauwe, L.J, Davidenko, G.V, Dersch, U, Dirkes, G, Dolgolenko, A.G, Dzyubenko, G.B, Edelstein, R, Emediato, L, Endler, A.M.F, Engelfried, J, Escobar, C.O, Evdokimov, A.V, Filimonov, I.S, Garcia, F.G, Gaspero, M, Giller, I, Golovtsov, V.L, Gouffon, P, Gülmez, E, He, Kangling, Iori, M, Jun, S.Y, Kaya, M, Kilmer, J, Kim, V.T, Kochenda, L.M, Königsmann, K, Konorov, I, Kozhevnikov, A.P, Krivshich, A.G, Kubantsev, M.A, Kubarovsky, V.P, Kulyavtsev, A.I, Kuropatkin, N.P, Kurshetsov, V.F, Kushnirenko, A, Kwan, S, Lach, J, Lamberto, A, Landsberg, L.G, Larin, I, Leikin, E.M, Li, Yunshan, Luksys, M, Lungov, T, Maleev, V.P, Mao, D, Mao, Chensheng, Mao, Zhenlin, Masciocchi, S, Mathew, P, Mattson, M, Matveev, V, McCliment, E, Moinester, M.A, Molchanov, V.V, Morelos, A, Nelson, K.D, Nemitkin, A.V, Neoustroev, P.V, Newsom, C, Nilov, A.P, Nurushev, S.B, Ocherashvili, A, Onel, Y, Ozel, E, Ozkorucuklu, S, Penzo, A, Petrenko, S.V, Pogodin, P, Povh, B, Procario, M, Prutskoi, V.A, Ramberg, E, Rappazzo, G.F, Razmyslovich, B.V, Rud, V.I, Russ, J, Scheglov, Y, Schiavon, P, Sitnikov, A.I, Skow, D, Smith, V.J, Srivastava, M, Steiner, V, Stepanov, V, Stutte, L, Svoiski, M, Terentyev, N.K, Thomas, G.P, Uvarov, L.N, Vasiliev, A.N, Vavilov, D.V, Verebryusov, V.S, Victorov, V.A, Vishnyakov, V.E, Vorobyov, A.A, You, J, Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R

Abstract

The Σ−mean squared charge radius has been measured in the space-like Q2range 0.035–0.105 GeV2/c2by elastic scattering of a Σ− beam off atomic electrons. The measurement was performed with the SELEX (E781) spectrometer using the Fermilab hyperon beam at a mean energy of 610 GeV/c.

Published
2001
Full Text
View/download PDF

23. First observation of the Cabibbo-suppressed decays Ξc+→Σ+π−π+ and Ξc+→Σ−π+π+ and measurement of their branching ratios

Author

Vázquez-Jáuregui, E., Engelfried, J., Akgun, U., Alkhazov, G., Amaro-Reyes, J., Atamantchouk, A.G., Ayan, A.S., Balatz, M.Y., Blanco-Covarrubias, A., Bondar, N.F., Cooper, P.S., Dauwe, L.J., Davidenko, G.V., Dersch, U., Dolgolenko, A.G., Dzyubenko, G.B., Edelstein, R., Emediato, L., Endler, A.M.F., Eschrich, I., Escobar, C.O., Estrada, N., Evdokimov, A.V., Filimonov, I.S., Garcia, F.G., Gaspero, M., Giller, I., Golovtsov, V.L., Gouffon, P., Gülmez, E., He, Kangling, Iori, M., Jun, S.Y., Kaya, M., Kilmer, J., Kim, V.T., Kochenda, L.M., Konorov, I., Kozhevnikov, A.P., Krivshich, A.G., Krü, H., Kubantsev, M.A., Kubarovsky, V.P., Kulyavtsev, A.I., Kuropatkin, N.P., Kurshetsov, V.F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L.G., Larin, I., Leikin, E.M., Li, Yunshan, Ló, G., Luksys, M., Lungov, T., Maleev, V.P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., McCliment, E., Moinester, M.A., Molchanov, V.V., Morelos, A., Nelson, K.D., Nemitkin, A.V., Neoustroev, P.V., Newsom, C., Nilov, A.P., Nurushev, S.B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S.V., Pogodin, P., Procario, M., Prutskoi, V.A., Ramberg, E., Rappazzo, G.F., Razmyslovich, B.V., Rud, V.I., Russ, J., Sánchez-López, J.L., Schiavon, P., Simon, J., Sitnikov, A.I., Skow, D., Smith, V.J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N.K., Thomas, G.P., Torres, I., Uvarov, L.N., Vasiliev, A.N., Vavilov, D.V., Verebryusov, V.S., Victorov, V.A., Vishnyakov, V.E., Vorobyov, A.A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R.

Abstract

We report the first observation of two Cabibbo-suppressed decay modes, Ξc+→Σ+π−π+ and Ξc+→Σ−π+π+. We observe 59±14 over a background of 87, and 22±8 over a background of 13 events, respectively, for the signals. The data were accumulated using the SELEX spectrometer during the 1996–1997 fixed target run at Fermilab, chiefly from a 600GeV/c Σ− beam. The branching ratios of the decays relative to the Cabibbo-favored Ξc+→Ξ−π+π+ are measured to be B(Ξc+→Σ+π−π+)/B(Ξc+→Ξ−π+π+)=0.48±0.20, and B(Ξc+→Σ−π+π+)/B(Ξc+→Ξ−π+π+)=0.18±0.09, respectively. We also report branching ratios for the same decay modes of the Λc+ relative to Λc+→pK−π+.

Full Text
View/download PDF

24. Polarization of $\Lambda^0$ and $\bar{\Lambda}^0$ inclusively produced by 610-GeV/c $\Sigma^{-}$ and 525-GeV/c proton beams

Author

Sanchez-Lopez, J. L., Nelson, K. D., Engelfried, J., Akgun, U., Alkhazov, G., Amaro-Reyes, J., Atamantchouk, A. G., Ayan, A. S., Balatz, M. Y., Blanco-Covarrubias, A., Bondar, N. F., Cooper, P. S., Dauwe, Loretta J., Davidenko, G. V., Dersch, U., Dolgolenko, A. G., Dzyubenko, G. B., Edelstein, R., Emediato, L., Endler, A. M. F., Gough Eschrich, Ivo M., Escobar, C. O., Estrada, N., Anatoly Evdokimov, Filimonov, I. S., Flores-Castillo, A., Garcia, F. G., Gaspero, Mario, Giller, I., Golovtsov, V. L., Gouffon, P., Gulmez, Erhan, He, Kangling, Iori, M., Jun, S. Y., Kaya, M., Kilmer, J., Kim, V. T., Kochenda, L. M., Konorov, I., Kozhevnikov, A. P., Krivshich, A. G., Kruger, H., Kubantsev, M. A., Kubarovsky, V. P., Kulyavtsev, A. I., Kuropatkin, N. P., Kurshetsov, V. F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L. G., Larin, I., Leikin, E. M., Yunshan, Li, Luksys, M., Lungov, T., Maleev, V. P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., Mccliment, E., Moinester, M. A., Molchanov, V. V., Morelos Pineda, Antonio, Nemitkin, A. V., Neoustroev, Petr V., Newsom, C., Nilov, A. P., Nurushev, S. B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S. V., Pogodin, P., Procario, M., Prutskoi, V. A., Ramberg, E., Rappazzo, G. F., Razmyslovich, B. V., Rud, V. I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A. I., Skow, D., Smith, V. J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentyev, N. K., Thomas, G. P., Torres, I., Uvarov, L. N., Vasiliev, A. N., Vavilov, D. V., Vazquez-Jauregui, E., Verebryusov, V. S., Victorov, V. A., Vishnyakov, V. E., Vorobyov, A. A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich-Funchal, R.

25. Recent results on charm and hyperon physics from SELEX

Author

Engelfried, J., Alkhazov, G., Atamantchouk, A. G., Balatz, M. Y., Bondar, N. F., Cooper, P. S., Dauwe, Loretta J., Davidenko, G. V., Dersch, U., Dolgolenko, A. G., Dzyubenko, G. B., Edelstein, R., Emediato, L., Endler, A. M. F., Gough Eschrich, Ivo M., Escoba, C. O., Evdokimov, A. V., Filimonov, I. S., Garcia, F. G., Gaspero, Mario, Giller, I., Golovtsov, V. L., Gouffon, P., Gulmez, Erhan, He, Kangling, Iori, M., Soon Yung Jun, Kaya, M., Kilmer, J., Kim, V. T., Kochenda, L. M., Konorov, I., Kozhevnikov, A. P., Krivshich, A. G., Kruger, H., Kubantsev, M. A., Kubarovsky, V. P., Kulyavtsev, A. I., Kuropatkin, N. P., Kurshetsov, V. F., Kushnirenko, A., Kwan, S., Lach, J., Lamberto, A., Landsberg, L. G., Larin, I., Leikin, E. M., Li, Yunshan, Luksys, M., Lungov, T., Maleev, V. P., Mao, D., Mao, Chensheng, Mao, Zhenlin, Mathew, P., Mattson, M., Matveev, V., Mccliment, E., Moinester, M. A., Molchanov, V. V., Morelos Pineda, Antonio, Nelson, K. D., Nemitkin, A. V., Neoustroev, Petr V., Newsom, C., Nilov, A. P., Nurushev, S. B., Ocherashvili, A., Onel, Y., Ozel, E., Ozkorucuklu, S., Penzo, A., Petrenko, S. V., Pogodin, P., Procario, M., Prutskoi, V. A., Ramberg, E., Rappazzo, G. F., Razmyslovich, B. V., Rud, V. I., Russ, J., Schiavon, P., Simon, J., Sitnikov, A. I., Skow, D., Smith, V. J., Srivastava, M., Steiner, V., Stepanov, V., Stutte, L., Svoiski, M., Terentiev, N. K., Thomas, G. P., Uvarov, L. N., Vasiliev, A. N., Vavilov, D. V., Verebryusov, V. S., Victorov, V. A., Vishnyakov, V. E., Vorobov, A. A., Vorwalter, K., You, J., Zhao, Wenheng, Zheng, Shuchen, and Zukanovich Funchal, R.

Catalog

Books, media, physical & digital resources
See catalog results