Studying the Underlying Event in Drell-Yan and High Transverse Momentum Jet Production at the Tevatron
High Energy Physics - Experiment
2012-04-20 v1 High Energy Physics - Phenomenology
Abstract
We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles (transverse momentum pT > 0.5 GeV/c, pseudorapidity |\eta| < 1) produced in association with large transverse momentum jets (~2.2 fb-1) or with Drell-Yan lepton-pairs (~2.7 fb-1) in the Z-boson mass region (70 < M(pair) < 110 GeV/c2) as measured by CDF at 1.96 TeV center-of-mass energy. We use the direction of the lepton-pair (in Drell-Yan production) or the leading jet (in high-pT jet production) in each event to define three regions of \eta-\phi space; toward, away, and transverse, where \phi is the azimuthal scattering angle. For Drell-Yan production (excluding the leptons) both the toward and transverse regions are very sensitive to the underlying event. In high-pT jet production the transverse region is very sensitive to the underlying event and is separated into a MAX and MIN transverse region, which helps separate the hard component (initial and final-state radiation) from the beam-beam remnant and multiple parton interaction components of the scattering. The data are corrected to the particle level to remove detector effects and are then compared with several QCD Monte-Carlo models. The goal of this analysis is to provide data that can be used to test and improve the QCD Monte-Carlo models of the underlying event that are used to simulate hadron-hadron collisions.
Keywords
Cite
@article{arxiv.1003.3146,
title = {Studying the Underlying Event in Drell-Yan and High Transverse Momentum Jet Production at the Tevatron},
author = {The CDF Collaboration and T. Aaltonen and J. Adelman and B. Alvarez Gonzalez and S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and A. Apresyan and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and A. Attal and A. Aurisano and F. Azfar and W. Badgett and A. Barbaro-Galtieri and V. E. Barnes and B. A. Barnett and P. Barria and P. Bartos and G. Bauer and P. -H. Beauchemin and F. Bedeschi and D. Beecher and S. Behari and G. Bellettini and J. Bellinger and D. Benjamin and A. Beretvas and D. Berge and A. Bhatti and M. Binkley and D. Bisello and I. Bizjak and R. E. Blair and C. Blocker and B. Blumenfeld and A. Bocci and A. Bodek and V. Boisvert and D. Bortoletto and J. Boudreau and A. Boveia and B. Brau and A. Bridgeman and L. Brigliadori and C. Bromberg and E. Brubaker and J. Budagov and H. S. Budd and S. Budd and K. Burkett and G. Busetto and P. Bussey and A. Buzatu and K. L. Byrum and S. Cabrera and C. Calancha and S. Camarda and M. Campanelli and M. Campbell and F. Canelli and A. Canepa and B. Carls and D. Carlsmith and R. Carosi and S. Carrillon and S. Carron and B. Casal and M. Casarsa and A. Castrocc and P. Catastini and D. Cauz and V. Cavaliere and M. Cavalli-Sforza and A. Cerri and L. Cerrito and S. H. Chang and Y. C. Chen and M. Chertok and G. Chiarelli and G. Chlachidze and F. Chlebana and K. Cho and D. Chokheli and J. P. Chou and K. Chungo and W. H. Chung and Y. S. Chung and T. Chwalek and C. I. Ciobanu and M. A. Ciocci and A. Clark and D. Clark and G. Compostella and M. E. Convery and J. Conway and M. Corbo and M. Cordelli and C. A. Cox and D. J. Cox and F. Crescioli and C. Cuenca Almenar and J. Cuevas and R. Culbertson and J. C. Cully and D. Dagenhart and M. Datta and T. Davies and P. de Barbaro and S. De Cecco and A. Deisher and G. De Lorenzo and M. Dell'Orso and C. Deluca and L. Demortier and J. Deng and M. Deninno and M. d'Errico and A. Di Canto and G. P. di Giovanni and B. Di Ruzza and J. R. Dittmann and M. D'Onofrio and S. Donati and P. Dong and T. Dorigo and S. Dube and K. Ebina and A. Elagin and R. Erbacher and D. Errede and S. Errede and N. Ershaidat and R. Eusebi and H. C. Fang and S. Farrington and W. T. Fedorko and R. G. Feild and M. Feindt and J. P. Fernandez and C. Ferrazza and R. Field and G. Flanagans and R. Forrest and M. J. Frank and M. Franklin and J. C. Freeman and I. Furic and M. Gallinaro and J. Galyardt and F. Garberson and J. E. Garcia and A. F. Garfinkel and P. Garosi and H. Gerberich and D. Gerdes and A. Gessler and S. Giagu and V. Giakoumopoulou and P. Giannetti and K. Gibson and J. L. Gimmell and C. M. Ginsburg and N. Giokaris and M. Giordani and P. Giromini and M. Giunta and G. Giurgiu and V. Glagolev and D. Glenzinski and M. Gold and N. Goldschmidt and A. Golossanov and G. Gomez and G. Gomez-Ceballos and M. Goncharov and O. González and I. Gorelov and A. T. Goshaw and K. Goulianos and A. Gresele and S. Grinstein and C. 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Martin and V. Martink and M. Martinez and R. Martinez-Ballarin and P. Mastrandrea and M. Mathis and M. E. Mattson and P. Mazzanti and K. S. McFarland and P. McIntyre and R. McNulty and A. Mehta and P. Mehtala and A. Menzione and C. Mesropian and T. Miao and D. Mietlicki and N. Miladinovic and R. Miller and C. Mills and M. Milnik and A. Mitra and G. Mitselmakher and H. Miyake and S. Moed and N. Moggi and M. N. Mondragon and C. S. Moon and R. Moore and M. J. Morello and J. Morlock and P. Movilla Fernandez and J. Mulmenstadt and A. Mukherjee and Th. Muller and P. Murat and M. Mussini and J. Nachtman and Y. Nagai and J. Naganoma and K. Nakamura and Nakano and A. Napier and J. Nett and C. Neu and M. S. Neubauer and S. Neubauer and J. Nielseng and L. Nodulman and M. Norman and O. Norniella and E. Nurse and L. Oakes and S. H. Oh and Y. D. Oh and I. Oksuzian and T. Okusawa and R. Orava and K. Osterberg and S. Pagan Griso and C. Pagliarone and E. Palencia and V. Papadimitriou and A. Papaikonomou and A. A. Paramanov and B. Parks and S. Pashapour and J. Patrick and G. Pauletta and M. Paulini and C. Paus and T. Peiffer and D. E. Pellett and A. Penzo and T. J. Phillips and G. Piacentino and E. Pianori and L. Pinera and K. Pitts and C. Plager and L. Pondrom and K. Potamianos and O. Poukhov and F. Prokoshin and A. Pronko and F. Ptohos and E. Pueschel and G. Punzi and J. Pursley and J. Rademacker and A. Rahaman and V. Ramakrishnan and N. Ranjan and I. Redondo and P. Renton and M. Renz and M. Rescigno and S. Richter and F. Rimondi and L. Ristori and A. Robson and T. Rodrigo and T. Rodriguez and E. Rogers and S. Rolli and R. Roser and M. Rossi and R. Rossin and P. Roy and A. Ruiz and J. Russ and V. Rusu and B. Rutherford and H. Saarikko and A. Safonov and W. K. Sakumoto and L. Santi and L. Sartori and K. Sato and A. Savoy-Navarro and P. Schlabach and A. Schmidt and E. E. Schmidt and M. A. Schmidt and M. P. Schmidt and M. Schmitt and T. Schwarz and L. Scodellaro and A. Scribano and F. Scuri and A. Sedov and S. Seidel and Y. Seiya and A. Semenov and L. Sexton-Kennedy and F. Sforza and A. Sfyrla and S. Z. Shalhout and T. Shears and P. F. Shepard and M. Shimojima and S. Shiraishi and M. Shochet and Y. Shon and I. Shreyber and A. Simonenko and P. Sinervo and A. Sisakyan and A. J. Slaughter and J. Slaunwhite and K. Sliwa and J. R. Smith and F. D. Snider and R. Snihur and A. Soha and S. Somalwar and V. Sorin and P. Squillacioti and M. Stanitzki and R. St. Denis and B. Stelzer and O. Stelzer-Chilton and D. Stentz and J. Strologas and G. L. Strycker and J. S. Suh and A. Sukhanov and I. Suslov and A. Taffard and R. Takashima and Y. Takeuchi and R. Tanaka and J. Tang and M. Tecchio and P. K. Teng and J. Thom and J. Thome and G. A. Thompson and E. Thomson and P. Tipton and P. Ttito-Guzmán and S. Tkaczyk and D. Toback and S. Tokar and K. Tollefson and T. Tomura and D. Tonelli and S. Torre and D. Torretta and P. Totaro and S. Tourneur and M. Trovato and S. -Y. Tsai and Y. Tu and N. Turiniff and F. Ukegawa and S. Uozumi and N. van Remortel and A. Varganov and E. Vataga and F. Vázquez and G. Velev and C. Vellidis and M. Vidal and I. Vila and R. Vilar and M. Vogel and I. Volobouev and G. Volpi and P. Wagner and R. G. Wagner and R. L. Wagner and W. Wagner and J. Wagner-Kuhr and T. Wakisaka and R. Wallny and S. M. Wang and A. Warburton and D. Waters and M. Weinberger and J. Weinelt and W. C. Wester and B. Whitehouse and D. Whiteson and A. B. Wicklund and E. Wicklund and S. Wilbur and G. Williams and H. H. Williams and M. G. Wilson and P. Wilson and B. L. Winer and P. Wittich and S. Wolbers and C. Wolfe and H. Wolfe and T. Wright and X. Wu and F. Würthwein and A. Yagil and K. Yamamoto and J. Yamaoka and U. K. Yang and Y. C. Yang and W. M. Yao and G. P. Yeh and K. Yio and J. Yoh and K. Yorita and T. Yoshidal and G. B. Yu and I. Yu and S. S. Yu and J. C. Yun and A. Zanetti and Y. Zeng and X. Zhang and Y. Zheng and S. Zucchelli},
journal= {arXiv preprint arXiv:1003.3146},
year = {2012}
}
Comments
Submitted to Phys.Rev.D