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Hadronic resonance production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>d</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:mrow></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi mathvariant="italic">NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn></mml:mrow></mml:math>GeV measured at the BNL Relativistic Heavy Ion Collider

B. I. AbelevUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAM. M. AggarwalPanjab University, Chandigarh 160014, IndiaZ. AhammedVariable Energy Cyclotron Centre, Kolkata 700064, IndiaB. D. AndersonKent State University, Kent, Ohio 44242, USAD. ArkhipkinG. S. AverichevYuting BaiNIKHEF and Utrecht University, Amsterdam, The NetherlandsJ. BalewskiMassachusetts Institute of Technology, Cambridge, MA 02139-4307, USAO. BarannikovaUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAL. S. BarnbyUniversity of Birmingham, Birmingham, United KingdomJ. BaudotS. BaumgartYale University, New Haven, Connecticut 06520, USAD. R. BeavisBrookhaven National Laboratory, Upton, New York 11973, USAR. BellwiedWayne State University, Detroit, Michigan 48201, USAF. BenedossoNIKHEF and Utrecht University, Amsterdam, The NetherlandsR. R. BettsUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAS. BhardwajUniversity of Rajasthan, Jaipur 302004, IndiaA. BhasinUniversity of Jammu, Jammu 180001, IndiaA. K. BhatiPanjab University, Chandigarh 160014, IndiaH. BichselUniversity of Washington, Seattle, Washington 98195, USAJ. BielčíkNuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech RepublicJ. BielčíkováNuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech RepublicB. BiritzUniversity of California, Los Angeles, California 90095, USAL. C. BlandBrookhaven National Laboratory, Upton, New York 11973, USAM. BombaraUniversity of Birmingham, Birmingham, United KingdomB. E. BonnerRice University, Houston, Texas 77251, USAM. BotjeNIKHEF and Utrecht University, Amsterdam, The NetherlandsJ. BouchetKent State University, Kent, Ohio 44242, USAE. BraidotNIKHEF and Utrecht University, Amsterdam, The NetherlandsA. V. BrandinMoscow Engineering Physics Institute, Moscow, RussiaBrunaYale University, New Haven, Connecticut 06520, USAS. BueltmannBrookhaven National Laboratory, Upton, New York 11973, USAT. P. BurtonUniversity of Birmingham, Birmingham, United KingdomM. BysterskýNuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech RepublicX. Z. CaiShanghai Institute of Applied Physics, Shanghai 201800, People's Republic of ChinaM. Calderon De La Barca SanchezUniversity of California, Davis, California 95616, USAJ. CallnerUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAO. CatuYale University, New Haven, Connecticut 06520, USAD. CebraUniversity of California, Davis, California 95616, USAR. CendejasUniversity of California, Los Angeles, California 90095, USAM. C. CervantesTexas A&M University, College Station, Texas 77843, USAZ. ChajęckiOhio State University, Columbus, Ohio 43210, USAP. ChaloupkaNuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech RepublicS. ChattopdhyayVariable Energy Cyclotron Centre, Kolkata 700064, IndiaH. F. ChenUniversity of Science & Technology of China, Hefei 230026, People's Republic of ChinaC. H. ChengInstitute of Particle Physics, CCNU (HZNU), Wuhan 430079, People's Republic of ChinaJ. Y. ChenInstitute of Particle Physics, CCNU (HZNU), Wuhan 430079, People's Republic of ChinaJ. ChengTsinghua University, Beijing 100084, People's Republic of ChinaM. CherneyCreighton University, Omaha, Nebraska 68178, USAA. ChikanianYale University, New Haven, Connecticut 06520, USAKi-Young ChoiPusan National University, Pusan, Republic of KoreaW. ChristieBrookhaven National Laboratory, Upton, New York 11973, USAS. U. ChungBrookhaven National Laboratory, Upton, New York 11973, USAR. F. ClarkeTexas A&M University, College Station, Texas 77843, USAM. J. M. CodringtonTexas A&M University, College Station, Texas 77843, USAJ. P. CoffinT. M. CormierWayne State University, Detroit, Michigan 48201, USAM. R. CosentinoUniversidade de Sao Paulo, Sao Paulo, BrazilJ. G. CramerUniversity of Washington, Seattle, Washington 98195, USAH. J. CrawfordUniversity of California, Berkeley, California 94720, USAD. DasUniversity of California, Davis, California 95616, USAS. DashInstitute of Physics, Bhubaneswar 751005, IndiaM. DaugherityUniversity of Texas, Austin, Texas 78712, USAC. De SilvaWayne State University, Detroit, Michigan 48201, USAТ. Г. ДедовичM. DePhillipsBrookhaven National Laboratory, Upton, New York 11973, USAA. A. DerevschikovInstitute of High Energy Physics, Protvino, RussiaR. Derradi de SouzaUniversidade Estadual de Campinas, Sao Paulo, BrazilL. DidenkoBrookhaven National Laboratory, Upton, New York 11973, USAP. DjawothoIndiana University, Bloomington, Indiana 47408, USAS. DograUniversity of Jammu, Jammu 180001, IndiaX. DongLawrence Berkeley National Laboratory, Berkeley, California 94720, USAJ. L. DrachenbergTexas A&M University, College Station, Texas 77843, USAJ. E. DraperUniversity of California, Davis, California 95616, USAF. DuYale University, New Haven, Connecticut 06520, USAJ. C. DunlopBrookhaven National Laboratory, Upton, New York 11973, USAM. R. Dutta MazumdarVariable Energy Cyclotron Centre, Kolkata 700064, IndiaW. R. EdwardsLawrence Berkeley National Laboratory, Berkeley, California 94720, USAL. G. EfimovE. ElhalhuliUniversity of Birmingham, Birmingham, United KingdomM. ElnimrWayne State University, Detroit, Michigan 48201, USAВ. ЕмеляновMoscow Engineering Physics Institute, Moscow, RussiaJ. EngelageUniversity of California, Berkeley, California 94720, USAG. EppleyRice University, Houston, Texas 77251, USAB. ErazmusSUBATECH, Nantes, FranceM. EstienneL. EunPennsylvania State University, University Park, Pennsylvania 16802, USAP. FachiniBrookhaven National Laboratory, Upton, New York 11973, USAR. FatemiUniversity of Kentucky, Lexington, Kentucky 40506-0055, USAJ. FedorišinA. FengInstitute of Particle Physics, CCNU (HZNU), Wuhan 430079, People's Republic of ChinaP. FilipE. FinchYale University, New Haven, Connecticut 06520, USAV. FineBrookhaven National Laboratory, Upton, New York 11973, USAY. FisyakBrookhaven National Laboratory, Upton, New York 11973, USAC. A. GagliardiTexas A&M University, College Station, Texas 77843, USAL. GaillardUniversity of Birmingham, Birmingham, United KingdomD. R. GangaharanUniversity of California, Los Angeles, California 90095, USAM. S. GantiVariable Energy Cyclotron Centre, Kolkata 700064, India
2008lv
ABI

Аннотация

We present the first measurements of the $\ensuremath{\rho}(770){}^{0},{K}^{*}(892),\ensuremath{\Delta}(1232){}^{++},\ensuremath{\Sigma}(1385)$, and $\ensuremath{\Lambda}(1520)$ resonances in $d+\mathrm{Au}$ collisions at $\sqrt{{s}_{\mathit{NN}}}=200$ GeV, reconstructed via their hadronic decay channels using the STAR detector (the solenoidal tracker at the BNL Relativistic Heavy Ion Collider). The masses and widths of these resonances are studied as a function of transverse momentum ${p}_{T}$. We observe that the resonance spectra follow a generalized scaling law with the transverse mass ${m}_{T}$. The $\ensuremath{\langle}{p}_{T}\ensuremath{\rangle}$ of resonances in minimum bias collisions are compared with the $\ensuremath{\langle}{p}_{T}\ensuremath{\rangle}$ of $\ensuremath{\pi},K$, and $\overline{p}$. The ${\ensuremath{\rho}}^{0}/{\ensuremath{\pi}}^{\ensuremath{-}},{K}^{*}/{K}^{\ensuremath{-}},{\ensuremath{\Delta}}^{++}/p,\ensuremath{\Sigma}(1385)/\ensuremath{\Lambda}$, and $\ensuremath{\Lambda}(1520)/\ensuremath{\Lambda}$ ratios in $d+\mathrm{Au}$ collisions are compared with the measurements in minimum bias $p+p$ interactions, where we observe that both measurements are comparable. The nuclear modification factors (${R}_{d\mathrm{Au}}$) of the ${\ensuremath{\rho}}^{0},{K}^{*}$, and ${\ensuremath{\Sigma}}^{*}$ scale with the number of binary collisions (${N}_{\mathrm{bin}}$) for ${p}_{T}&gt;$ 1.2 GeV/$c$.

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