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Wang S Lisa MA Albergo S Bieser F Brady FP Caccia Z Cebra DA Chacon AD Chance JL Choi Y Costa S Elliott JB Gilkes ML Hauger JA Hirsch AS Hjort EL Insolia A Justice M Keane D Kintner J Lindenstruth V Liu H Matis HS McMahan M McParland C Olson DL Partlan MD Porile NT Potenza R Rai G Rasmussen J Ritter HG Romanski J Romero JL Russo GV Scharenberg RP Scott A Shao Y Srivastava BK Symons TJ Tincknell ML Tuvè C Warren PG Weerasundara D Wieman HH Wolf KL 《Physical review letters》1996,76(21):3911-3914
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Alber T Appelshäuser H Bächler J Bartke J Bialkowska H Bieser F Bloomer MA Blyth CO Bock R Bormann C Brady FP Brockmann R Buncic P Caines HL Cebra D Chan P Cooper GE Cramer JG Cramer PB Csato P Derado I Dunn J Eckardt V Eckhardt F Euler S Ferguson MI Fischer HG Fodor Z Foka P Freund P Fuchs M Gal J Gazdzicki M Gladysz E Grebieszkow J Günther J Harris JW Heck W Hegyi S Hill LA Huang I Howe MA Igo G Irmscher D Jacobs P Jones PG Kadija K Kecskemeti J Kowalski M Kühmichel A Lasiuk B Margetis S 《Physical review letters》1995,75(21):3814-3817
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All-trans 1,3,4,5-tetrasubstituted γ-butyrolactams 3 and 7 are readily available in one-pot from allyl tetronates or 4-allyloxycoumarins and amines via a four-step domino Claisen-Conia ring-opening transamidation reaction. 相似文献
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Ackermann KH Adams N Adler C Ahammed Z Ahmad S Allgower C Amsbaugh J Anderson M Anderssen E Arnesen H Arnold L Averichev GS Baldwin A Balewski J Barannikova O Barnby LS Baudot J Beddo M Bekele S Belaga VV Bellwied R Bennett S Bercovitz J Berger J Betts W Bichsel H Bieser F Bland LC Bloomer M Blyth CO Boehm J Bonner BE Bonnet D Bossingham R Botlo M Boucham A Bouillo N Bouvier S Bradley K Brady FP Braithwaite ES Braithwaite W Brandin A Brown RL Brugalette G Byrd C Caines H 《Physical review letters》2001,86(3):402-407
Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at square root(S)NN = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v2, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented. 相似文献