| 1 | Measurements of dihadron correlations relative to the event plane in Au+Au collisions at√^(S)NN=200 GeV显示文摘Dihadron azimuthal correlations containing a high transverse momentum(pr)trigger particle are sensit-ive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium,ie.jet-quenching.Previous measurements revealed a strong modification to di-hadron azimuthal correlations in Au+Au collisions with respect to ptp and d+Au collisions.The modification in-creases with the collision centrality,suggesting a path-length or energy density dependence to the je-quenching ef-fect.This paper reports STAR measurements of dihadron azimuthal correlations in mid-central(20%-60%)Au+Au collisions at√^(S)NN=200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane,Ф_(s)=|Ф_(t)-ψ_(Ep)|.The azimuthal correlation is studied as a function of both the trigger and associated particle pr.The subtractions of the combinatorial background and anisotropic flow,assuming Zero Yield At Minimum(ZYAM),are described.The correlation results are first discussed with subtraction of the even harmonic(elliptic and quadrangu-lar)flow backgrounds.The away-side correlation is strongly modifed,and the modification varies withФ_(s),with a double-peak structure for out-of-plane trigger particles.The near-side ridge(long range pseudo-rapidity△_(η)correla-tion)appears to drop with increasingФ_(s)while the jet-like component remains approximately constant.The correla-tion functions are further studied with the subtraction of odd harmonic triangular flow background arising from fluc-tuations.It is found that the triangular flow,while responsible for the majority of the amplitudes,is not sufficient to explain theφs-dependence of the ridge or the away-side double-peak structure.The dropping ridge withФ_(s)could be attributed to aФ_(s)-dependent lliptie anisotropy;however,the physics mechanism of the ridge remains an open ques-tion.Even with aФ_(s)-dependent elliptic flow,the away-side correlation structure is robust.These results,with extens-ive systematic studies of the dihadron correlations as a function ofФ_(s),trigger and associated particle pT,and the pseudo-rapidity range△_(η),should provide stringent inputs to help understand the underlying physics mechanisms of jet-medium interactions in high energy nuclear collisions. | H.Agakishiev M.M.Aggarwal Z.Ahammed A.V.Alakhverdyants I.Alekseev J.Alford B.D.Anderson C.D.Anson D.Arkhipkin G.S.Averichev J.Balewski D.R.Beavis N.K.Behera R.Bellwied M.J.Betancourt R.R.Betts A.Bhasin A.K.Bhat H.Bichsel J.Bieleik J.Bielcikova B.Biritz L.C.Bland W.Borowski J.Bouchet E.Braidot A.V.Brandin A.Bridgeman S.G.Brovko E.Bruna S.Bueltmann I.Bunzarov T.P.Burton X.Z.Cai H.Caines M.Calderon de la Barca Sanchez D.Cebra R.Cendejas M.C.Cervantes Z.Chajecki P.Chaloupka S.Chattopadhyay H.F.Chen J.H.Chen J.Y.Chen L.Chen J.Cheng M.Cherney A.Chikanian K.E.Choi W.Christie P.Chung M.J.M.Codrington R.Corliss J.G.Cramer H.J.Crawford S.Dash A.Davila Leyva L.C.De Silvat R.R.Debbe T.G.Dedovich A.A.Derevschikov R.Derradi de Souza L.Didenko P.Djawotho S.M.Dogra X.Dong J.L.Drachenberg J.E.Draper J.C.Dunlop L.G Efimov M.Elnim J.Engelage G Eppley M.Estienne L.Eun O.Evdokimov R.Fatemi J.Fedorisin A.Feng R.G.Fersch P.Filip E.Finch V.Fine Y.Fisyak C.A.Gagliardi D.R.Gangadharan A.Geromitsos F.Geurts P.Ghosh Y.N.Gorbunov A.Gordon O.Grebenyuk D.Grosnick S.M.Guertin A.Gupta W.Guryn B.Haag O.Hajkova A.Hamed L-X.Han J.W.Harris J.P.Hays-Wehle M.Heinz S.Heppelmann A.Hirsch E.Hjort G.W.Hoffmann D.J.Hofiman B.Huang H.Z.Huang T.J.Humanic L.Huo G.Igo P.Jacobs W.W.Jacobs C.Jena F.Jin J.Joseph E.G.Judd S.Kabana K.Kang J.Kapitan K.Kauder H.Ke D.Keane A.Kechechyan D.Kettler D.P.Kikola J.Kiryluk A.Kisiel V.Kizka A.G.Knospe D.D.Koetke T.Kollegger J.Konzer I.Koralt L.Koroleva W.Korsch L.Kotchenda V.Kouchpil P.Kravtsov K.Krueger M.Krus L.Kumar P.Kurnadi M.A.C.Lamont J.M.Landgraf S.LaPointe J.Lauret A.Lebedev R.Lednicky J.H.Lee W.Leight M.J.LeVine C.Lil L.Li N.Li W.Li X.Li X.Li Y.Li Z.M.Li M.A.Lisa F.Liu H.Liu J.Liu T.Ljubicic W.J.Llope R.S.Longacre W.A.Love Y.Lu E.V.Lukashov X.Luo G.L.Ma Y.G.Mai D.P.Mahapatra R.Majka O.I.Mall L.K.Mangotra R.Manweiler S.Margetis C.Markert H.Masui H.S.Matis Yu.A.Matulenko D.MeDonald T.S.McShane A.Meschanin R.Milner N.G.Minaev S.Mioduszewski A.Mischke M.K.Mitrovski B.Mohanty M.M.Mondal B.Morozov D.A.Morozov M.G.Munhoz M.Naglis B.K.Nandi T.K.Nayak P.K.Netrakanti L.V.Nogach S.B.Nurushev G.Odyniec A.Ogawa Oh Ohlson V.Okorokov E.W.Oldag D.Olsont M.Pachr B.S.Page S.K.Pal Y.Pandit Y.Panebratsev T.Pawlak H.Pei T.Peitzmann C.Perkins W.Peryt S.C.Phatak P.Pile M.Planinic M.A.Ploskon J.Pluta D.Plyku N.Poljak A.M.Poskanzer B.V.K.S.Potukuchi C.B.Powell D.Prindle N.K.Pruthi A.M.Poskanzer B.V.K.S.Potukuchi B.Powell D.Prindle N.K.Pruthi P.R.Pujahar J.Putschke H.Qiu R.Raniwala S.Raniwala R.L.Ray R.Redwine R.Reed H.G.Riter J.B.Roberts O.V.Rogachevskiy J.L.Romero A.Rose L.Ruan J.Rusnak N.R.Sahoo S.Sakai I.Sakrejda T.Sakuma S.Salur J.Sandweiss E.Sangaline A.Sarkar J.Schambach R.P.Scharenberg A.M.Schmah N.Schmitz T.R.Schuster J.Seele J.Seger I.Selyuzhenkov P.Seyboth E.Shahaliev M.Shao M.Sharma S.S.Shi Q.Y.Shou E.P.Sichtermann F.Simon R.N.Singaraju M.J.Skoby N.Smirnov H.M.Spinka B.Srivastava T.D.S.Stanislaus D.Staszak S.G.Steadman J.R.Stevens R.Stock M.Strikhanov B.Stringfellow A.A.P.Suaide M.C.Suarez N.L.Subba M.Sumbera X.M.Sun Y.Sun Z.Sun B.Surrow D.N.Svirida T.J.M.Symons A.Szanto de Toledo J.Takahashi A.H.Tang Z.Tang L.H.Tarini T.Tarnowsky D.Thein J.H.Thomas J.Tian A.R.Timmins D.Tlusty M.Tokarev V.N.Tram S.Trentalange R.E.Tribble Tribedy O.D.Tsai T.Ullrich D.G.Underwood G.Van Buren G.van Nieuwenhuizen J.A.Vanfossen R.Varma G.M.S.Vasconcelos A.N.Vasiliev F.Videbaek Y.P.Viyogi S.Vokal M.Wadat M.Walker F.Wang G.Wang H.Wang J.S.Wang Q.Wang X.L.Wang Y.Wang G.Webb J.C.Webb G.D.Westfall C.Whitten H.Wieman S.W.Wissink R.Witt W.Witzke Y.F.Wu Xiao W.Xie H.Xu N.Xu Q.H.Xu W.Xu Y.Xu Z.Xu L.Xue Y.Yang P.Yepes K.Yip I-K.Yoo M.Zawisza H.Zbroszczyk W.Zhan J.B.Zhang S.Zhang W.M.Zhang X.P.Zhang Y.Zhang Z.P.Zhang J.Zhao C.Zhong W.Zhou X.Zhu Y.H.Zhu R.Zoulkarneev Y.Zoulkarneeva | 2021 | Chinese Physics C2021，45，4： | 351 |
| 2 | C4二醇的发酵生产及其化学催化升级为高价值化学品的研究进展显示文摘化石资源的过度消耗导致能源和环境污染问题,迫切需要科研人员开发出可持续、低能耗、绿色低碳的化学品生产技术.生物技术利用“细胞工厂”,以生物质等可再生资料为原料生产基础化学品,是以化石资源为原料的合成方法的潜在替代方案.然而,利用生物技术生产全系列石化产品存在其自身的局限性,因此,人们对集成/混合方法越来越感兴趣,该方法先采用生物技术对生物质升级,再通过化学催化的途径使其转化为含有活性官能团的产物.本文主要综述了C4二醇的三种重要结构异构体,2,3-、1,3-和1,4-丁二醇的生物生产方法,目前这些异构体主要通过石化路线生产,全球市场需求不断增长.首先,从集成方法的原理出发,总结了上述二醇的生物法生产现状,包括底物、微生物、发酵技术和代谢/途径工程和发酵技术.然后,全面总结了C4二醇催化升级以生产系列产物的最新研究进展,讨论了催化剂中不同活性位点对催化活性、产物选择性和催化剂稳定性的影响.此外,给出了集成方法的具体实例,解决开发C4二醇生物生产工艺的相关挑战,强调通过直接催化转化方法对其升级所存在的困难.最后,对C4二醇的发酵生产及其化学催化升级为高价值化学品的相关研究进行总结,对未来发展进行展望,并指出将生物催化和化学催化方法相结合对于拓宽生物质升级转化产物范围具有重要作用. | Abhishek R.Varma Bhushan S.Shrirame Sunil K.Maity Deepti Agrawal Naglis Malys Leonardo Rios-Solis Gopalakrishnan Kumar Vinod Kumar | 2023 | Chinese Journal of Catalysis2023，52，9： | 0 |
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