共查询到20条相似文献,搜索用时 31 毫秒
1.
Brick DH Widgoff M Beilliere P Lutz P Narjoux JL Gelfand N Alyea ED Bloomer M Bober J Busza W Cole B Frank TA Fuess TA Grodzins L Hafen ES Haridas P Huang D Huang HZ Hulsizer R Kistiakowsky V Ledoux RJ Milstene C Noguchi S Oh SH Pless IA Steadman S Stoughton TB Suchorebrow V Tether S Trepagnier PC Wadsworth BF Wu Y Yamamoto RK Cohn HO Calligarich E Corti G Dolfini R Gianini G Introzzi G Ratti S Badiak M DiMarco R Jacques PF Kalelkar M Plano RJ Stamer PE Brucker EB Koller EL Alexander G 《Physical review D: Particles and fields》1992,45(3):734-742
2.
Sarmiento M Mooney P Bishop JM Biswas N Cason NM Dauwe L Godfrey J Kenney VP Pemper R Rojek E Ruchti RC Shephard WD Edelstein RM Forsyth CP Gamarnik K Ginther G Kreymer AE Lipton R McQuade JM Potter DM Russ JS Spiegel L Johnson DE Buchholz D Cremaldi L Delchamps SW Mao HS Rosen JL Sakumoto W Schluter RA Sontz SB Winter C 《Physical review D: Particles and fields》1992,45(7):2244-2248
3.
Antoniazzi L Arenton M Cao Z Chen T Conetti S Cox B Delchamps S Fortney L Guffey K Haire M Ioannou P Jenkins CM Judd DJ Kourkoumelis C Manousakis-Katsikakis A Kuzminski J LeCompte T Marchionni A He M Mazur PO Murphy CT Pramantiotis P Rameika R Resvanis LK Rosati M Rosen J Shen C Shen Q Simard A Smith RP Spiegel L Stairs DG Tan Y Tesarek RJ Turkington T Turnbull L Turkot F Tzamarias S Voulgaris G Wagoner DE Wang C Yang W Yao N Zhang N Zhang X Zioulas G Zou B 《Physical review D: Particles and fields》1992,46(11):4828-4835
4.
Katsanevas S Kourkoumelis C Markou A Resvanis LK Tzamarias S Voulgaris G Binkley M Cox B Enagonio J Hojvat C Judd D Kephart RD Malhotra PK Mazur PO Murphy CT Turkot F Wagner RL Wagoner DE Yang W Areti H Conetti S Lebrun P Ryan D Ryan T Schappert W Stairs DG Akerlof C Kraushaar P Nitz D Thun R Mao H Zhang Nai-jian 《Physical review letters》1988,60(21):2121-2124
5.
《Physics letters. [Part B]》1988,200(3):266-271
Distributions of the leading positive particle have been measured in collisions of a 200 GeV/c proton beam with hydrogen, Mg, Ag and Au targets using the FNAL Hybrid Spectrometer. Estimates of the rapidity loss of the projectile have been obtained as a function of the target mass, the multiplicity of negative particles and the number of recoil protons. We obtained a lower limit of the rapidity loss of 2.0±0.2 for central p+Au collisions. The impact parameter dependence of the momenta of the first few leading particles has also been investigated with important implications to estimates of energy densities obtained in central collisions. 相似文献
6.
V. V. Aivazyan I. V. Ajinenko Yu. A. Belokopytov H. Białkowska L. V. Bravina H. Böttcher F. Botterweck P. V. Chliapnikov F. Crijns A. De Roeck E. A. De Wolf K. Dziunikowska A. M. F. Endler Z. G. Garutchava N. G. Grigoryan T. van Hal T. Haupt D. Kisielewska W. Kittel F. Meijers A. B. Michałowska V. I. Nikolaenko K. Olkiewicz L. P. Petrovikh F. K. Rizatdinova V. M. Ronjin A. M. Rybin L. Scholten E. K. Shabalina L. N. Smirnova N. A. Sotnikova O. G. Tchikilev L. A. Tikhonova A. G. Tomaradze V. A. Uvarov R. Verbeure R. Wischnewski 《Zeitschrift fur Physik C Particles and Fields》1991,51(2):167-178
Two- and three-particle rapidity correlations are analyzed inK + p and π+ p-interactions at 250 GeV/c. The main contribution to the two- and three-particle correlation functions comes from mixing of events of different multiplicity. The (short range) two-particle correlation remaining after exclusion of mixing is significantly larger for (+?) than for the equal charge combinations, and is positive for a wider range in rapidity difference. FRITIOF and a 2-string DPM are excluded by our data. A quark-gluon (multi-)string model can describe our inclusive correlation function, but needs to be tuned on the short range part. The multiplicity mixing part increases much faster with increasing energy than the short range part. In the central region, our correlation is similar to that observed ine + e ? and μp collisions at similar energy. 相似文献
7.
N. M. Agababyan M. R. Atayan M. Charlet J. Czyżewski E. A. De Wolf K. Dziunikowska A. M. F. Endler Z. Sh. Garutchava H. R. Gulkanyan R. Sh. Hakobyan J. K. Karamyan D. Kisielewska W. Kittel S. S. Mehrabyan Z. V. Metreveli E. C. Oliveira K. Olkiewicz F. K. Rizatdinova E. K. Shabalina L. N. Smirnova M. D. Tabidze L. A. Tikhonova A. V. Tkabladze A. G. Tomaradze F. Verbeure S. A. Zotkin 《Zeitschrift fur Physik C Particles and Fields》1996,71(1):405-414
The NA22 data onπ ? π ? correlations are analyzed in terms of a number of two- and three-dimensional parametrizations (Gaussian space-time, Goldhaber, Bowler string-like, Bertsch hydrodynamical, Kopylov-Podgoretskii, etc.). Contrary to the results obtained for e+e? andµp collisions, the Goldhaber parametrization, as well as string-like models, fail in describing the hadron-hadron data. Better fits are obtained in the framework of surface-emitting fireball-like models, both when including and excluding hydrodynamical expansion of nuclear matter. Our results indicate that pion radiation occurs at earlier stages of matter evolution than in nuclear collisions. 相似文献
8.
9.
Beavis D Bennett MJ Carroll JB Chiba J Chikanian A Crawford H Cronqvist M Dardenne Y Debbe R Doke T Engelage J Greiner L Hallman TJ Hayano RS Heckman HH Kashiwagi T Kikuchi J Kumar S Kuo C Lindstrom PJ Mitchell JW Nagamiya S Nagle JL Pope JK Stankus P Tanaka KH Welsh RC Zhan W 《Physical review letters》1995,75(17):3078-3081
10.
Green DR Fenker HC Lai KW LeBritton J Lin YC Pifer AE Davenport TF Goldman JH Hagopian SL Lannutti JE Canough G Chang CC Davis TC Joyner RW Poirier JA Georgiopoulos CH Napier A Schneps J Marraffino JM Waters JW Webster MS Williams EG Woosley J Ficenec JR Torres S Trower WP 《Physical review letters》1986,56(16):1639-1642
11.
I. V. Ajinenko S. G. Baladyan Yu. A. Belokopytov H. B?ttcher F. Botterweck P. V. Chliapnikov F. Crijns A. De Roeck E. A. De Wolf C. Dreher K. Dziunikowska P. F. Ermolov Z. C. Garutchava L. N. Gerdyukov G. V. Gevorkyan H. Gr?ssler P. van Hal T. Haupt W. Kittel F. Meijers A. B. Micha?owska V. I. Nikolaenko L. C. Oliveira K. Olkiewicz R. P?ll?nen V. M. Ronjin A. M. Rybin H. M. T. Saarikko W. Schmitz L. Scholten E. K. Shabalina J. Stepaniak O. G. Tchikilev A. G. Tomaradze V. A. Uvarov F. Verbeure R. Wischnewski Yu. V. Yarba W. Zielinski EHS-NA Collaboration 《Zeitschrift fur Physik C Particles and Fields》1989,43(1):37-44
We present data on the flow of energy and charge in π+ p,K + p andpp interactions at 250 GeV/c. The energy and charge flow in the beam c.m. hemisphere is analysed in terms of the cluster-invariant Bialas-Ochs-Stodolsky variable λ=cot θ/E jet. The profile functionsdQ/dλ anddE/dλ indicate a widening inp T of jets between 32 and 250 GeV/c incident laboratory momentum, whereas the ratiodQ/dE is energy independent. The data are compared to μp deep-inelastic scattering resutls and to expectations from the single string LUND model, the Dual Parton Model and the two-string LUND model (FRITIOF). 相似文献
12.
I. V. Ajinenko Y. A. Belokopitov P. V. Chliapnikov V. P. Falaleev A. B. Fenyuk L. N. Gerdyukov A. I. Kurnosenko A. M. Rybin E. A. De Wolf J. J. Dumont M. Gysen M. Van Immerseel F. Grard J. Hanton J. Laberrigue H. K. Nguyen C. Cochet M. L. Faccini-Turluer L. Mosca France-Soviet Union Collaboration CERN-Soviet Union Collaboration 《Zeitschrift fur Physik C Particles and Fields》1980,4(3):181-199
Final data on topological cross sections are presented. Inclusive single particle distributions for the reactionsK + p→ π± X at 32 GeV/c are discussed and compared with data at lower energies. Early scaling in the fragmentation regions is confirmed, while cross sections in th central region continue to rise with energy even faster than inpp interactions. Thex-andp T -dependence of the π+/π? ratio inK + p interactions is discussed and a comparison of reactionsK + p→ π± X andK ? p→ π± X at 32 GeV/c is made in the context of constituent models. We also present transverse momentum distributions, show prominent seagull effects and study how they are influenced by resonance production. 相似文献
13.
Ushida N Kondo T Tasaka S Park IG Song JS Hara T Homma Y Tsuzuki Y Fujioka G Fukushima H Takahashi Y Tatsumi S Yokoyama C Fujiwara K Taruma K Bahk SY Kim CO Park JN Bailey DC Conetti S Mercure P Trischuk J Turcotte M Aoki S Chiba K Fuchi H Hoshino K Kodama K Matsui R Miyanishi M Nakamura M Nakazawa K Niu K Niwa K Ohashi M Sasaki H Tomita Y Torii N Yamakawa O Yanagisawa Y Aubrecht GJ Dunlea J Errede S Gauthier A Gutzwiller MJ Kuramata S Oleynik G Reay NW Reibel K Sidwell RA Stanton NR Moriyama K 《Physical review letters》1986,56(17):1767-1770
14.
Morelos A Albuquerque IF Bondar NF Carrigan RA Chen D Cooper PS Dai Lisheng Denisov AS Dobrovolsky AV Dubbs T Endler AM Escobar CO Foucher M Golovtsov VL Gottschalk H Gouffon P Grachev VT Khanzadeev AV Kubantsev MA Kuropatkin NP Lach J Lang Pengfei Li Chengze Li Yunshan Luksys M Mahon JR McCliment E Newsom C Pommot Maia MC Samsonov VM Schegelsky VA Shi Huanzhang Smith VJ Tang Fukun Terentyev NK Timm S Tkatch II Uvarov LN Vorobyov AA Yan Jie Zhao Wenheng Zheng Shuchen Zhong Yuanyuan 《Physical review letters》1993,71(14):2172-2175
15.
《Zeitschrift fur Physik C Particles and Fields》1996,70(2):233-238
Cross-sections are obtained for coherent interactions of π+ and K+-mesons with Al and Au nuclei at 250 GeV/c, leading to three, five and seven charged mesons. The total coherent cross-section is (4.3 ± 0.5)% of the inelastic cross-section for each of the four meson-nucleus interactions. In 85% of the coherent events, the charged meson production is accompanied by neutral mesons. Effective mass distributions are presented for coherently produced particles, including charged mesons and photons, carrying total measured energy of more than 85% of the initial energy. Charged particle and γ spectra are analysed. No charge asymmetry is observed within the coherently produced cluster. 相似文献
16.
G. Thompson J.A. Gaidos R.L. McIlwain D.H. Miller T.A. Mulera R.B. Willmann 《Nuclear Physics B》1974,69(2):220-236
The missing mass spectrum opposite the proton in a 750 000 picture exposure, 13 GeV/cπ+p bubble chamber experiment, is investigated in two and four pion channels for structures observed or denied by boson spectrometers at the same energy in the reaction π?p→X?p.In the four pion final state the R+ enhancement is observed clearly and the possibility of multi-component mass structure is considered. Treating the phenomenon as one object, cross sections and branching ratios are derived for intermediate quasi two and three body decay modes (ωπ, ??, A2π, ?ππ). The signals in the two pion state and for the neutral state produced opposite Δ++(1231) are also presented and an elasticity is calculated. 相似文献
17.
D.J. Mellema 《Nuclear Physics B》1973,53(3):429-457
Data are presented on the production of the KNπ final states in K+p interactions at 7.3 GeV/c. The energy dependence of the KNπ final state cross sections, the effective-mass distributions, and the spectra of c.m. longitudinal momenta are given, and features of these data are compared with predictions of the generalized Veneziano (GV) model. Furthermore, we present the momentum transfer and decay angular distributions for K1 (890), K1 (1420) and Δ (1236) production within the KNπ final states and discuss these quasi-two-body reactions in terms of the GV model. 相似文献
18.
Naudet C Corcoran M Johns K Miettinen HE Rice J Roberts JB Arenton MW Ditzler WR Fields TH Harrison M Kanofsky A Gustafson R Cormell L Dris M Fleischman J Gardella E Kononenko W Robinson B Selove W Theodosiou G Yost B Chen HF Erwin AR Hasan MA Kuehn CE Nelson KS Thompson MA 《Physical review letters》1986,56(8):808-811
19.
Rath MG Cason NM Bensinger JR Bishop JM Biswas NN Busenitz JK Etkin A Foley KJ Fortner MR Fortney LR Goo J Kenney VP Kirsch LE Kramer MA Lindenbaum SJ Longacre RS Love WA McCrory E Morris TW Piekarz H Piekarz J Platner ED Poster RA Ruchti RC Saulys AC Shephard WD Zogrofou P 《Physical review D: Particles and fields》1989,40(3):693-705