Related papers: Scaling Violation in the Fragmentation Functions i…

New results on e+e- -> hadrons exclusive cross sections from experiments with SND detector at VEPP-2M e+e- collider in the energy range sqrt(s)=0.4-1.4 GeV

New results of the e+e- -> pi+pi-, K+K-, K_SK_L, pi0/gamma, eta0/gamma processes cross section measurements are presented. The results are based on the 30 pb^-1 data, accumulated by SND detector at VEPP-2M e+e- collider in the energy range…

High Energy Physics - Experiment · Physics 2009-04-25 S. I. Serednyakov , M. N. Achasov , K. I. Beloborodov , A. G. Bogdanchikov , A. V. Bozhenok , A. D. Bukin , D. A. Bukin , T. V. Dimova , V. P. Druzhinin , V. B. Golubev , A. A. Korol , S. V. Koshuba , E. V. Pakhtusova , Yu. M. Shatunov , V. A. Sidorov , Z. K. Silagadze , A. N. Skrinsky , Yu. A. Tikhonov , A. V. Vasiljev

Anomalous prompt photon production in hadronic collisions at low-$x_T$

We investigate the discrepancy that exists at low-$x_T=2p_T/\sqrt{s}$ between the next--to--leading order QCD calculations of prompt photon production and the measured cross section. The central values of the measured cross section are of…

High Energy Physics - Phenomenology · Physics 2009-10-22 Damien Pierce

Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV

The invariant differential cross section for inclusive electron production in $p + p$ collisions at $\sqrt{s} = 200$~GeV has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range…

High Energy Physics - Experiment · Physics 2023-04-07 PHENIX Collaboration , S. S. ~Adler , S. ~Afanasiev , C. ~Aidala , N. N. ~Ajitanand , Y. ~Akiba , J. ~Alexander , R. ~Amirikas , L. ~Aphecetche , S. H. ~Aronson , R. ~Averbeck , T. C. ~Awes , R. ~Azmoun , V. ~Babintsev , A. ~Baldisseri , K. N. ~Barish , P. D. ~Barnes , B. ~Bassalleck , S. ~Bathe , S. ~Batsouli , V. ~Baublis , A. ~Bazilevsky , S. ~Belikov , Y. ~Berdnikov , S. ~Bhagavatula , J. G. ~Boissevain , H. ~Borel , S. ~Borenstein , M. L. ~Brooks , D. S. ~Brown , N. ~Bruner , D. ~Bucher , H. ~Buesching , V. ~Bumazhnov , G. ~Bunce , J. M. ~Burward-Hoy , S. ~Butsyk , X. ~Camard , J. -S. ~Chai , P. ~Chand , W. C. ~Chang , S. ~Chernichenko , C. Y. ~Chi , J. ~Chiba , M. ~Chiu , I. J. ~Choi , J. ~Choi , R. K. ~Choudhury , T. ~Chujo , V. ~Cianciolo , Y. ~Cobigo , B. A. ~Cole , P. ~Constantin , D. ~d'Enterria , G. ~David , H. ~Delagrange , A. ~Denisov , A. ~Deshpande , E. J. ~Desmond , A. ~Devismes , O. ~Dietzsch , O. ~Drapier , A. ~Drees , R. ~du~Rietz , A. ~Durum , D. ~Dutta , Y. V. ~Efremenko , K. ~El~Chenawi , A. ~Enokizono , H. ~En'yo , S. ~Esumi , L. ~Ewell , D. E. ~Fields , F. ~Fleuret , S. L. ~Fokin , B. D. ~Fox , Z. ~Fraenkel , J. E. ~Frantz , A. ~Franz , A. D. ~Frawley , S. -Y. ~Fung , S. ~Garpman , T. K. ~Ghosh , A. ~Glenn , G. ~Gogiberidze , M. ~Gonin , J. ~Gosset , Y. ~Goto , R. ~Granier~de~Cassagnac , N. ~Grau , S. V. ~Greene , M. ~Grosse~Perdekamp , W. ~Guryn , H. -Å. ~Gustafsson , T. ~Hachiya , J. S. ~Haggerty , H. ~Hamagaki , A. G. ~Hansen , E. P. ~Hartouni , M. ~Harvey , R. ~Hayano , N. ~Hayashi , X. ~He , M. ~Heffner , T. K. ~Hemmick , J. M. ~Heuser , M. ~Hibino , J. C. ~Hill , W. ~Holzmann , K. ~Homma , B. ~Hong , A. ~Hoover , T. ~Ichihara , V. V. ~Ikonnikov , K. ~Imai , D. ~Isenhower , M. ~Ishihara , M. ~Issah , A. ~Isupov , B. V. ~Jacak , W. Y. ~Jang , Y. ~Jeong , J. ~Jia , O. ~Jinnouchi , B. M. ~Johnson , S. C. ~Johnson , K. S. ~Joo , D. ~Jouan , S. ~Kametani , N. ~Kamihara , J. H. ~Kang , S. S. ~Kapoor , K. ~Katou , S. ~Kelly , B. ~Khachaturov , A. ~Khanzadeev , J. ~Kikuchi , D. H. ~Kim , D. J. ~Kim , D. W. ~Kim , E. ~Kim , G. -B. ~Kim , H. J. ~Kim , E. ~Kistenev , A. ~Kiyomichi , K. ~Kiyoyama , C. ~Klein-Boesing , H. ~Kobayashi , L. ~Kochenda , V. ~Kochetkov , D. ~Koehler , T. ~Kohama , M. ~Kopytine , D. ~Kotchetkov , A. ~Kozlov , P. J. ~Kroon , C. H. ~Kuberg , K. ~Kurita , Y. ~Kuroki , M. J. ~Kweon , Y. ~Kwon , G. S. ~Kyle , R. ~Lacey , V. ~Ladygin , J. G. ~Lajoie , A. ~Lebedev , S. ~Leckey , D. M. ~Lee , S. ~Lee , M. J. ~Leitch , X. H. ~Li , H. ~Lim , A. ~Litvinenko , M. X. ~Liu , Y. ~Liu , C. F. ~Maguire , Y. I. ~Makdisi , A. ~Malakhov , V. I. ~Manko , Y. ~Mao , G. ~Martinez , M. D. ~Marx , H. ~Masui , F. ~Matathias , T. ~Matsumoto , P. L. ~McGaughey , E. ~Melnikov , F. ~Messer , Y. ~Miake , J. ~Milan , T. E. ~Miller , A. ~Milov , S. ~Mioduszewski , R. E. ~Mischke , G. C. ~Mishra , J. T. ~Mitchell , A. K. ~Mohanty , D. P. ~Morrison , J. M. ~Moss , F. ~Mühlbacher , D. ~Mukhopadhyay , M. ~Muniruzzaman , J. ~Murata , S. ~Nagamiya , J. L. ~Nagle , T. ~Nakamura , B. K. ~Nandi , M. ~Nara , J. ~Newby , P. ~Nilsson , A. S. ~Nyanin , J. ~Nystrand , E. ~O'Brien , C. A. ~Ogilvie , H. ~Ohnishi , I. D. ~Ojha , K. ~Okada , M. ~Ono , V. ~Onuchin , A. ~Oskarsson , I. ~Otterlund , K. ~Oyama , K. ~Ozawa , D. ~Pal , A. P. T. ~Palounek , V. ~Pantuev , V. ~Papavassiliou , J. ~Park , A. ~Parmar , S. F. ~Pate , T. ~Peitzmann , J. -C. ~Peng , V. ~Peresedov , C. ~Pinkenburg , R. P. ~Pisani , F. ~Plasil , M. L. ~Purschke , A. K. ~Purwar , J. ~Rak , I. ~Ravinovich , K. F. ~Read , M. ~Reuter , K. ~Reygers , V. ~Riabov , Y. ~Riabov , G. ~Roche , A. ~Romana , M. ~Rosati , P. ~Rosnet , S. S. ~Ryu , M. E. ~Sadler , N. ~Saito , T. ~Sakaguchi , M. ~Sakai , S. ~Sakai , V. ~Samsonov , L. ~Sanfratello , R. ~Santo , H. D. ~Sato , S. ~Sato , S. ~Sawada , Y. ~Schutz , V. ~Semenov , R. ~Seto , M. R. ~Shaw , T. K. ~Shea , T. -A. ~Shibata , K. ~Shigaki , T. ~Shiina , C. L. ~Silva , D. ~Silvermyr , K. S. ~Sim , C. P. ~Singh , V. ~Singh , M. ~Sivertz , A. ~Soldatov , R. A. ~Soltz , W. E. ~Sondheim , S. P. ~Sorensen , I. V. ~Sourikova , F. ~Staley , P. W. ~Stankus , E. ~Stenlund , M. ~Stepanov , A. ~Ster , S. P. ~Stoll , T. ~Sugitate , J. P. ~Sullivan , E. M. ~Takagui , A. ~Taketani , M. ~Tamai , K. H. ~Tanaka , Y. ~Tanaka , K. ~Tanida , M. J. ~Tannenbaum , P. ~Tarján , J. D. ~Tepe , T. L. ~Thomas , J. ~Tojo , H. ~Torii , R. S. ~Towell , I. ~Tserruya , H. ~Tsuruoka , S. K. ~Tuli , H. ~Tydesjö , N. ~Tyurin , H. W. ~van~Hecke , J. ~Velkovska , M. ~Velkovsky , V. ~Veszprémi , L. ~Villatte , A. A. ~Vinogradov , M. A. ~Volkov , E. ~Vznuzdaev , X. R. ~Wang , Y. ~Watanabe , S. N. ~White , F. K. ~Wohn , C. L. ~Woody , W. ~Xie , Y. ~Yang , A. ~Yanovich , S. ~Yokkaichi , G. R. ~Young , I. E. ~Yushmanov , W. A. ~Zajc , C. ~Zhang , S. ~Zhou , S. J. ~Zhou , L. ~Zolin

Higher order QCD corrections to the transverse and longitudinal fragmentation functions in electron-positron annihilation

We present the calculation of the order $\alpha_s^2$ corrections to the coefficient functions contributing to the longitudinal ($F_L(x,Q^2)$) and transverse fragmentation functions ($F_T(x,Q^2)$) measured in electron-positron annihilation.…

High Energy Physics - Phenomenology · Physics 2009-09-25 P. J. Rijken , W. L. van Neerven

Fragmentation and spectroscopy of hadrons in ep collisions

Recent results on charm fragmentation and hadron spectroscopy in $e^+/e^- p$ collisions at HERA with the ZEUS and H1 detectors are presented. The measured fragmentation ratios and fragmentation fractions are in agreement with those measured…

High Energy Physics - Experiment · Physics 2007-05-23 N. Coppola

Measurement of the Absolute Branching Fraction of D0 -> K- pi+

We measure the absolute branching fraction for $D0 \to K^{-} \pi^{+}$ using partial reconstruction of $B0bar \to D^{*+} X \ell^{-} \bar{\nu}_{\ell}$ decays. Only the charged lepton and the soft pion from the decay $D^{*+} \to D^{0} \pi^{+}$…

High Energy Physics - Experiment · Physics 2019-08-14 Romulus Godang

Determination of fragmentation functions and their uncertainties from e+ + e- -> h + X data

Fragmentation functions are determined for pions, kaons, and nucleons by a global analysis of charged-hadron production data in electron-positron annihilation. The optimum functions are obtained in both leading order (LO) and…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Hirai , S. Kumano , T. -H. Nagai , K. Sudoh

Measurement of the Inclusive Semi-electronic $D^0$ Branching Fraction

Using the angular correlation between the $\pi^+$ emitted in a $D^{*+} \rightarrow D^0 \pi^+$ decay and the $e^+$ emitted in the subsequent $D^0 \rightarrow Xe^+\nu$ decay, we have measured the branching fraction for the inclusive…

High Energy Physics - Experiment · Physics 2012-08-27 CLEO Collaboration

Neutral-Kaon Production in e^+e^-, ep, and p\bar p Collisions at Next-to-Leading Order

We present new sets of fragmentation functions for neutral kaons, both at leading and next-to-leading order. They are fitted to data on inclusive K^0 production in e^+e^- annihilation taken by MARK II at PEP (\sqrt s = 29 GeV) and by ALEPH…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Binnewies , B. A. Kniehl , G. Kramer

Verification of Monte Carlo transport codes against measured small angle p-, d-, and t-emission in carbon fragmentation at 600 MeV/nucleon

Momentum spectra of hydrogen isotopes have been measured at 3.5 deg from C12 fragmentation on a Be target. Momentum spectra cover both the region of fragmentation maximum and the cumulative region. Differential cross sections span five…

Nuclear Experiment · Physics 2015-02-06 B. M. Abramov , P. N. Alexeev , Yu. A. Borodin , S. A. Bulychjov , I. A. Dukhovskoy , A. P. Krutenkova , V. V. Kulikov , M. A. Martemianov , M. A. Matsyuk , E. N. Turdakina , A. I. Khanov , S. G. Mashnik

Scaling test of the P4-improved staggered fermion action

We present a scaling study of the QCD spectrum using a smeared P4 staggered fermion formulation, in which three, five, and seven-link staples are added to reduce the effects of flavor symmetry breaking. These studies are performed on…

High Energy Physics - Lattice · Physics 2019-08-14 Michael Cheng

Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC

A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at the Large Hadron Collider is reported. The measurements are predominantly performed on proton$-$proton…

High Energy Physics - Experiment · Physics 2025-04-16 ATLAS Collaboration

Measurements of Absolute Hadronic Branching Fractions of D Mesons

Using e+e- collisions recorded at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we determine absolute hadronic branching fractions of charged and neutral D mesons. Among measurements for both…

High Energy Physics - Experiment · Physics 2009-11-11 Werner M. Sun

Measurement of charm and bottom production from semileptonic hadron decays in $p$$+$$p$ collisions at $\sqrt{s_{NN}}=200$ GeV

Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV are presented. The measurements proceed through displaced-vertex…

High Energy Physics - Experiment · Physics 2019-08-13 C. Aidala , Y. Akiba , M. Alfred , V. Andrieux , N. Apadula , H. Asano , B. Azmoun , V. Babintsev , N. S. Bandara , K. N. Barish , S. Bathe , A. Bazilevsky , M. Beaumier , R. Belmont , A. Berdnikov , Y. Berdnikov , D. S. Blau , J. S. Bok , M. L. Brooks , J. Bryslawskyj , V. Bumazhnov , S. Campbell , V. Canoa Roman , R. Cervantes , C. Y. Chi , M. Chiu , I. J. Choi , J. B. Choi , Z. Citron , M. Connors , N. Cronin , M. Csanád , T. Csörgő , T. W. Danley , M. S. Daugherity , G. David , K. DeBlasio , K. Dehmelt , A. Denisov , A. Deshpande , E. J. Desmond , A. Dion , D. Dixit , J. H. Do , A. Drees , K. A. Drees , J. M. Durham , A. Durum , A. Enokizono , H. En'yo , S. Esumi , B. Fadem , W. Fan , N. Feege , D. E. Fields , M. Finger , M. Finger, , S. L. Fokin , J. E. Frantz , A. Franz , A. D. Frawley , Y. Fukuda , C. Gal , P. Gallus , E. A. Gamez , P. Garg , H. Ge , F. Giordano , Y. Goto , N. Grau , S. V. Greene , M. Grosse Perdekamp , T. Gunji , H. Guragain , T. Hachiya , J. S. Haggerty , K. I. Hahn , H. Hamagaki , H. F. Hamilton , S. Y. Han , J. Hanks , S. Hasegawa , T. O. S. Haseler , X. He , T. K. Hemmick , J. C. Hill , K. Hill , A. Hodges , R. S. Hollis , K. Homma , B. Hong , T. Hoshino , N. Hotvedt , J. Huang , S. Huang , K. Imai , M. Inaba , A. Iordanova , D. Isenhower , S. Ishimaru , D. Ivanishchev , B. V. Jacak , M. Jezghani , Z. Ji , X. Jiang , B. M. Johnson , D. Jouan , D. S. Jumper , J. H. Kang , D. Kapukchyan , S. Karthas , D. Kawall , A. V. Kazantsev , V. Khachatryan , A. Khanzadeev , C. Kim , E. -J. Kim , M. Kim , D. Kincses , E. Kistenev , J. Klatsky , P. Kline , T. Koblesky , D. Kotov , S. Kudo , B. Kurgyis , K. Kurita , Y. Kwon , J. G. Lajoie , A. Lebedev , S. Lee , S. H. Lee , M. J. Leitch , Y. H. Leung , N. A. Lewis , X. Li , S. H. Lim , M. X. Liu , V. -R. Loggins , S. Lökös , K. Lovasz , D. Lynch , T. Majoros , Y. I. Makdisi , M. Makek , V. I. Manko , E. Mannel , M. McCumber , P. L. McGaughey , D. McGlinchey , C. McKinney , M. Mendoza , W. J. Metzger , A. C. Mignerey , A. Milov , D. K. Mishra , J. T. Mitchell , Iu. Mitrankov , G. Mitsuka , S. Miyasaka , S. Mizuno , P. Montuenga , T. Moon , D. P. Morrison , S. I. Morrow , T. Murakami , J. Murata , K. Nagai , K. Nagashima , T. Nagashima , J. L. Nagle , M. I. Nagy , I. Nakagawa , K. Nakano , C. Nattrass , S. Nelson , T. Niida , R. Nishitani , R. Nouicer , T. Novák , N. Novitzky , A. S. Nyanin , E. O'Brien , C. A. Ogilvie , J. D. Orjuela Koop , J. D. Osborn , A. Oskarsson , G. J. Ottino , K. Ozawa , V. Pantuev , V. Papavassiliou , J. S. Park , S. Park , S. F. Pate , M. Patel , W. Peng , D. V. Perepelitsa , G. D. N. Perera , D. Yu. Peressounko , C. E. PerezLara , J. Perry , R. Petti , M. Phipps , C. Pinkenburg , R. P. Pisani , A. Pun , M. L. Purschke , P. V. Radzevich , K. F. Read , D. Reynolds , V. Riabov , Y. Riabov , D. Richford , T. Rinn , S. D. Rolnick , M. Rosati , Z. Rowan , J. Runchey , A. S. Safonov , T. Sakaguchi , H. Sako , V. Samsonov , M. Sarsour , S. Sato , C. Y. Scarlett , B. Schaefer , B. K. Schmoll , K. Sedgwick , R. Seidl , A. Sen , R. Seto , A. Sexton , D. Sharma , I. Shein , T. -A. Shibata , K. Shigaki , M. Shimomura , T. Shioya , P. Shukla , A. Sickles , C. L. Silva , D. Silvermyr , B. K. Singh , C. P. Singh , V. Singh , M. J. Skoby , M. Slunečka , K. L. Smith , M. Snowball , R. A. Soltz , W. E. Sondheim , S. P. Sorensen , I. V. Sourikova , P. W. Stankus , S. P. Stoll , T. Sugitate , A. Sukhanov , T. Sumita , J. Sun , Z. Sun , S. Suzuki , J. Sziklai , K. Tanida , M. J. Tannenbaum , S. Tarafdar , A. Taranenko , G. Tarnai , R. Tieulent , A. Timilsina , T. Todoroki , M. Tomášek , C. L. Towell , R. S. Towell , I. Tserruya , Y. Ueda , B. Ujvari , H. W. van Hecke , J. Velkovska , M. Virius , V. Vrba , N. Vukman , X. R. Wang , Z. Wang , Y. S. Watanabe , C. P. Wong , C. L. Woody , C. Xu , Q. Xu , L. Xue , S. Yalcin , Y. L. Yamaguchi , H. Yamamoto , A. Yanovich , J. H. Yoo , I. Yoon , H. Yu , I. E. Yushmanov , W. A. Zajc , A. Zelenski , Y. Zhai , S. Zharko , L. Zou

The QCD NLO fragmentation functions for $c$ or $\bar{b}$ quark to $B_c$ or $B_c^*$ meson and their application

The fragmentation functions for $c$ or $\bar{b}$ quark to $B_c$ or $B_c^*$ meson are derived up to QCD next-to-leading order (NLO). They are further computed numerically and presented in figures precisely. In order to reach a higher…

High Energy Physics - Phenomenology · Physics 2020-01-01 Xu-Chang Zheng , Chao-Hsi Chang , Tai-Fu Feng , Xing-Gang Wu

Collider Signals of Top Quark Flavor Violation from a Warped Extra Dimension

We study top quark flavor violation in the framework of a warped extra dimension with the Standard Model (SM) fields propagating in the bulk. Such a scenario provides solutions to both the Planck-weak hierarchy problem and the flavor puzzle…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kaustubh Agashe , Gilad Perez , Amarjit Soni

Measurement of the branching fractions for B^0 -> D^{*-}pi^+ and B^0 -> D^{*-}rho^+

Using 5.2 fb-1 of e^+e^- annihilation data recorded with the BABAR detector at the PEP-II storage ring while operating on the Y(4S) resonance, a sample of fully reconstructed B^0 decays in the hadronic modes B^0 -> D^{*-}pi^+ and B^0 ->…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

QCD resummation in hadron production

We present calculations of next-to-leading order and resummed QCD corrections for semi-inclusive deep-inelastic scattering and single-inclusive e+e- annihilation. The resummation is performed to next-to-leading logarithmic accuracy. Knowing…

High Energy Physics - Phenomenology · Physics 2022-03-02 Daniele P. Anderle , Felix Ringer , Werner Vogelsang

Measurement of the Branching Fraction, Polarization, and CP Asymmetries in B0->rho0rho0 Decay, and Implications for the CKM Angle alpha

We study B0->rho0rho0 decays in a sample of 465*10^6 Upsilon (4S)->BBbar events collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider located at the Stanford Linear Accelerator Center (SLAC). We measure the…

High Energy Physics - Experiment · Physics 2010-04-12 The BaBar Collaboration , B. Aubert

Factorization analysis for the fragmentation functions of hadrons containing a heavy quark

Using methods of effective field theory, a systematic analysis of the fragmentation functions D_{a/H}(x,m_Q) of a hadron H containing a heavy quark Q is performed (with a=Q,Q_bar,q,q_bar,g). By integrating out pair production of virtual and…

High Energy Physics - Phenomenology · Physics 2007-06-15 Matthias Neubert