Measurement of groomed jet substructure observables in p+p collisions at s=200 GeV with STAR
Measurement of groomed jet substructure observables in p+p collisions at s=200 GeV with STAR
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DOI：
10.1016/j.physletb.2020.135846
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发表时间：
2020-03
影响因子：
4.4
通讯作者：
S. Adam;L. Adamczyk;J. Adams;J. K. Adkins;G. Agakishiev;M. Aggarwal;Z. Ahammed;I. Alekseev;D. Anderson;A. Aparin;E. Aschenauer;M. U. Ashraf;F. Atetalla;A. Attri;G. S. Averichev;V. Bairathi;K. Barish;A. Behera;R. Bellwied;A. Bhasin;J. Bielcik;J. Bielčíková;L. Bland;I. Bordyuzhin;J. Brandenburg;A. Brandin;J. Butterworth;H. Caines;M. S'anchez;D. Cebra;I. Chakaberia;P. Chaloupka;B. Chan;F. Chang;Z. Chang;N. Chankova-Bunzarova;A. Chatterjee;D. Chen;J. Chen;X. Chen;Z. Chen;J. Cheng;M. Cherney;M. Chevalier;S. Choudhury;W. Christie;H. Crawford;M. Csan'ad;M. Daugherity;T. Dedovich;I. Deppner;A. Derevschikov;L. Didenko;X. Dong;J. Drachenberg;J. Dunlop;T. Edmonds;N. Elsey;J. Engelage;G. Eppley;R. Esha;S. Esumi;O. Evdokimov;A. Ewigleben;O. Eyser;R. Fatémi;S. Fazio;P. Federic;J. Fedorišin;C. Feng;Y. Feng;P. Filip;E. Finch;Y. Fisyak;A. Francisco;L. Fulek;C. Gagliardi;T. Galatyuk;F. Geurts;A. Gibson;K. Gopal;D. Grosnick;W. Guryn;A. Hamad;Ahmed M. Hamed;J. Harris;S. He;W. He;X. He;S. Heppelmann;N. Herrmann;E. Hoffman;L. Holub;Y. Hong;S. Horvat;Y. Hu;H. Huang;S. Huang;T. Huang;X. Huang;T. Humanic;P. Huo;G. Igo;D. Isenhower;W. Jacobs;C. Jena;A. Jentsch;J. Y.;J. Jia;K. Jiang;S. Jowzaee;X. Ju;E. Judd;S. Kabana;M. Kabir;S. Kagamaster;D. Kalinkin;K. Kang;D. Kapukchyan;K. Kauder;H. Ke;D. Keane;A. Kechechyan;M. Kelsey;Y. Khyzhniak;D. Kikoła;C. Kim;B. Kimelman;D. Kincses;T. Kinghorn;I. Kisel;A. Kiselev;A. Kisiel;M. Kocan;L. Kochenda;L. Kosarzewski;L. Kramárik;P. Kravtsov;K. Krueger;N. Mudiyanselage;Lokesh Kumar;R. K. Elayavalli;J. Kwasizur;R. Lacey;S. Lan;J. Landgraf;J. Lauret;A. Lebedev;R. Lednický;J. Lee;Y. Leung;C. Li;W. Li;X. Li;Y. Li;Y. Liang;R. Licenik;T. Lin;Y. Lin;M. Lisa;F. Liu;H. Liu;P. Liu;T. Liu;X. Liu;Y. Liu;Z. Liu;T. Ljubičić;W. Llope;R. Longacre;N. Lukow;S. Luo;X. Luo;G. Ma;L. Ma;R. Ma;Y. Ma;N. Magdy;R. Majka;D. Mallick;S. Margetis;C. Markert;H. Matis;J. Mazer;N. Minaev;S. Mioduszewski;B. Mohanty;M. Mondal;I. Mooney;Z. Moravcova;D. Morozov;M. Nagy;J. Nam;M. Nasim;K. Nayak;D. Neff;J. Nelson;D. Nemes;M. Nie;G. Nigmatkulov;T. Niida;L. Nogach;T. Nonaka;G. Odyniec;A. Ogawa;S. Oh;V. Okorokov;B. Page;R. Pak;A. Pandav;Y. Panebratsev;B. Pawlik;D. Pawłowska;H. Pei;C. Perkins;L. Pinsky;R. L. Pint'er;J. Pluta;J. Porter;M. Posik;N. Pruthi;M. Przybycien;J. Putschke;H. Qiu;A. Quintero;S. Radhakrishnan;S. Ramachandran;R. Ray;R. Reed;H. Ritter;J. Roberts;O. Rogachevskiy;J. Romero;L. Ruan;J. Rusnak;N. Sahoo;H. Sako;S. Salur;J. Sandweiss;S. Sato;W. Schmidke;N. Schmitz;B. Schweid;F. Seck;J. Seger;M. Sergeeva;R. Seto;P. Seyboth;N. Shah;E. Shahaliev;P. Shanmuganathan;M. Shao;F. Shen;W. Shen;S. Shi;Q. Shou;E. Sichtermann;R. Sikora;M. Simko;J. Singh;S. Singha;N. Smirnov;W. Solyst;P. Sorensen;H. Spinka;B. Srivastava;T. Stanislaus;M. Stefaniak;D. Stewart;M. Strikhanov;B. Stringfellow;A. Suaide;M. Šumbera;B. Summa;X. Sun;Y. Sun;B. Surrow;D. Svirida;P. Szymanski;A. Tang;Z. Tang;A. Taranenko;T. Tarnowsky;J. Thomas;A. Timmins;D. Tlustý;M. Tokarev;C. Tomkiel;S. Trentalange;R. Tribble;P. Tribedy;S. Tripathy;O. Tsai;Z. Tu;T. Ullrich;D. Underwood;I. Upsal;G. Buren;J. Vanek;A. Vasiliev;I. Vassiliev;F. Videbaek;S. Vokál;S. Voloshin;F. Wang;G. Wang;J. Wang;P. Wang;Y. Wang;Z. Wang;J. Webb;P. Weidenkaff;L. Wen;G. Westfall;H. Wieman;S. Wissink;R. Witt;Y. Wu;Z. Xiao;G. Xie;W. Xie;H. Xu;N. Xu;Q. Xu;Y. Xu;Y. Xu;Z. Xu;C. Yang;Q. Yang;S. Yang;Y. Yang;Z. Yang;Z. Ye;L. Yi;K. Yip;H. Zbroszczyk;W. Zha;D. Zhang;S. Zhang;X. Zhang;Y. Zhang;Z. Zhang;Z. Zhang;J. Zhao;C. Zhong;C. Zhou;X. Zhu;Z. Zhu;M. Zurek;M. Zyzak
中科院分区：
文献类型：
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作者：
S. Adam;L. Adamczyk;J. Adams;J. K. Adkins;G. Agakishiev;M. Aggarwal;Z. Ahammed;I. Alekseev;D. Anderson;A. Aparin;E. Aschenauer;M. U. Ashraf;F. Atetalla;A. Attri;G. S. Averichev;V. Bairathi;K. Barish;A. Behera;R. Bellwied;A. Bhasin;J. Bielcik;J. Bielčíková;L. Bland;I. Bordyuzhin;J. Brandenburg;A. Brandin;J. Butterworth;H. Caines;M. S'anchez;D. Cebra;I. Chakaberia;P. Chaloupka;B. Chan;F. Chang;Z. Chang;N. Chankova-Bunzarova;A. Chatterjee;D. Chen;J. Chen;X. Chen;Z. Chen;J. Cheng;M. Cherney;M. Chevalier;S. Choudhury;W. Christie;H. Crawford;M. Csan'ad;M. Daugherity;T. Dedovich;I. Deppner;A. Derevschikov;L. Didenko;X. Dong;J. Drachenberg;J. Dunlop;T. Edmonds;N. Elsey;J. Engelage;G. Eppley;R. Esha;S. Esumi;O. Evdokimov;A. Ewigleben;O. Eyser;R. Fatémi;S. Fazio;P. Federic;J. Fedorišin;C. Feng;Y. Feng;P. Filip;E. Finch;Y. Fisyak;A. Francisco;L. Fulek;C. Gagliardi;T. Galatyuk;F. Geurts;A. Gibson;K. Gopal;D. Grosnick;W. Guryn;A. Hamad;Ahmed M. Hamed;J. Harris;S. He;W. He;X. He;S. Heppelmann;N. Herrmann;E. Hoffman;L. Holub;Y. Hong;S. Horvat;Y. Hu;H. Huang;S. Huang;T. Huang;X. Huang;T. Humanic;P. Huo;G. Igo;D. Isenhower;W. Jacobs;C. Jena;A. Jentsch;J. Y.;J. Jia;K. Jiang;S. Jowzaee;X. Ju;E. Judd;S. Kabana;M. Kabir;S. Kagamaster;D. Kalinkin;K. Kang;D. Kapukchyan;K. Kauder;H. Ke;D. Keane;A. Kechechyan;M. Kelsey;Y. Khyzhniak;D. Kikoła;C. Kim;B. Kimelman;D. Kincses;T. Kinghorn;I. Kisel;A. Kiselev;A. Kisiel;M. Kocan;L. Kochenda;L. Kosarzewski;L. Kramárik;P. Kravtsov;K. Krueger;N. Mudiyanselage;Lokesh Kumar;R. K. Elayavalli;J. Kwasizur;R. Lacey;S. Lan;J. Landgraf;J. Lauret;A. Lebedev;R. Lednický;J. Lee;Y. Leung;C. Li;W. Li;X. Li;Y. Li;Y. Liang;R. Licenik;T. Lin;Y. Lin;M. Lisa;F. Liu;H. Liu;P. Liu;T. Liu;X. Liu;Y. Liu;Z. Liu;T. Ljubičić;W. Llope;R. Longacre;N. Lukow;S. Luo;X. Luo;G. Ma;L. Ma;R. Ma;Y. Ma;N. Magdy;R. Majka;D. Mallick;S. Margetis;C. Markert;H. Matis;J. Mazer;N. Minaev;S. Mioduszewski;B. Mohanty;M. Mondal;I. Mooney;Z. Moravcova;D. Morozov;M. Nagy;J. Nam;M. Nasim;K. Nayak;D. Neff;J. Nelson;D. Nemes;M. Nie;G. Nigmatkulov;T. Niida;L. Nogach;T. Nonaka;G. Odyniec;A. Ogawa;S. Oh;V. Okorokov;B. Page;R. Pak;A. Pandav;Y. Panebratsev;B. Pawlik;D. Pawłowska;H. Pei;C. Perkins;L. Pinsky;R. L. Pint'er;J. Pluta;J. Porter;M. Posik;N. Pruthi;M. Przybycien;J. Putschke;H. Qiu;A. Quintero;S. Radhakrishnan;S. Ramachandran;R. Ray;R. Reed;H. Ritter;J. Roberts;O. Rogachevskiy;J. Romero;L. Ruan;J. Rusnak;N. Sahoo;H. Sako;S. Salur;J. Sandweiss;S. Sato;W. Schmidke;N. Schmitz;B. Schweid;F. Seck;J. Seger;M. Sergeeva;R. Seto;P. Seyboth;N. Shah;E. Shahaliev;P. Shanmuganathan;M. Shao;F. Shen;W. Shen;S. Shi;Q. Shou;E. Sichtermann;R. Sikora;M. Simko;J. Singh;S. Singha;N. Smirnov;W. Solyst;P. Sorensen;H. Spinka;B. Srivastava;T. Stanislaus;M. Stefaniak;D. Stewart;M. Strikhanov;B. Stringfellow;A. Suaide;M. Šumbera;B. Summa;X. Sun;Y. Sun;B. Surrow;D. Svirida;P. Szymanski;A. Tang;Z. Tang;A. Taranenko;T. Tarnowsky;J. Thomas;A. Timmins;D. Tlustý;M. Tokarev;C. Tomkiel;S. Trentalange;R. Tribble;P. Tribedy;S. Tripathy;O. Tsai;Z. Tu;T. Ullrich;D. Underwood;I. Upsal;G. Buren;J. Vanek;A. Vasiliev;I. Vassiliev;F. Videbaek;S. Vokál;S. Voloshin;F. Wang;G. Wang;J. Wang;P. Wang;Y. Wang;Z. Wang;J. Webb;P. Weidenkaff;L. Wen;G. Westfall;H. Wieman;S. Wissink;R. Witt;Y. Wu;Z. Xiao;G. Xie;W. Xie;H. Xu;N. Xu;Q. Xu;Y. Xu;Y. Xu;Z. Xu;C. Yang;Q. Yang;S. Yang;Y. Yang;Z. Yang;Z. Ye;L. Yi;K. Yip;H. Zbroszczyk;W. Zha;D. Zhang;S. Zhang;X. Zhang;Y. Zhang;Z. Zhang;Z. Zhang;J. Zhao;C. Zhong;C. Zhou;X. Zhu;Z. Zhu;M. Zurek;M. Zyzak
在这封信中，测量的共享动量分数（z g）和修整射流半径（R g），定义在SoftDrop算法，报告在p+ p碰撞在s= 200 GeV收集的星星实验。这些子结构观测值是在横向动量范围15< p T，喷流< 60 GeV/c，分辨率参数从R= 0.2− 0.6变化的喷流中差分测量的。这些研究表明，在p T，射流范围在s= 200 GeV和射流分辨率参数和射流横向动量的增加，z g分布渐近收敛到DGstrom分裂核的夸克辐射胶子。梳理射流半径测量反映了一个动量相关的狭窄的射流结构的射流的一个给定的分辨率参数，即，较大的p T，射流，较窄的第一分裂。第一次，这些完全校正的测量相比，蒙特卡罗发电机与领先的阶QCD矩阵元素和领先的日志中的部分子淋浴，和国家的最先进的理论计算在下一个领先的日志精度。我们观察到，PYTHIA 6的参数调整，以重现RHIC测量能够定量描述的数据，而PYTHIA 8和HERWIG 7，调整，以重现LHC数据，无法提供一个同时描述的z g和R g，导致在RHIC能量的p+ p碰撞这些模型的精细参数调整的机会。我们还发现，没有非微扰修正的理论计算是能够定性地描述的趋势，在大分辨率参数的射流在高p T，射流，但失败的小射流分辨率参数和低射流横向动量的数据。
In this letter, measurements of the shared momentum fraction (z g) and the groomed jet radius (R g), as defined in the SoftDrop algorithm, are reported in p+ p collisions at s= 200 GeV collected by the STAR experiment. These substructure observables are differentially measured for jets of varying resolution parameters from R= 0.2− 0.6 in the transverse momentum range 15< p T, jet< 60 GeV/c. These studies show that, in the p T, jet range accessible at s= 200 GeV and with increasing jet resolution parameter and jet transverse momentum, the z g distribution asymptotically converges to the DGLAP splitting kernel for a quark radiating a gluon. The groomed jet radius measurements reflect a momentum-dependent narrowing of the jet structure for jets of a given resolution parameter, ie, the larger the p T, jet, the narrower the first splitting. For the first time, these fully corrected measurements are compared to Monte Carlo generators with leading order QCD matrix elements and leading log in the parton shower, and to state-of-the-art theoretical calculations at next-to-leading-log accuracy. We observe that PYTHIA 6 with parameters tuned to reproduce RHIC measurements is able to quantitatively describe data, whereas PYTHIA 8 and HERWIG 7, tuned to reproduce LHC data, are unable to provide a simultaneous description of both z g and R g, resulting in opportunities for fine parameter tuning of these models for p+ p collisions at RHIC energies. We also find that the theoretical calculations without non-perturbative corrections are able to qualitatively describe the trend in data for jets of large resolution parameters at high p T, jet, but fail at small jet resolution parameters and low jet transverse momenta.