Role of QCD compositeness in the production of scalar and tensor mesons through single-photon annihilation e+e−→γ∗→γS(T); Physical Review D; Vol. 96, iss. 9
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology.— , 1970- Vol. 96, iss. 9.— 2017.— [094018, 9 p.] |
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| 団体著者: | |
| その他の著者: | , , , |
| 要約: | Title screen We study the exclusive production of scalar S=0++ and tensor T=2++ mesons through single-photon annihilation e+e−→γ∗→γS(T). Using QCD compositeness of the involved hadrons considered as quark-antiquark systems, the prediction for the scaling of the differential cross sections of these processes is dσ/dt∼1/s3 at large s. We further derive the scaling of the γ∗→γS and γ∗→γT transition form factors: Fγ∗γS(s)∼1/s and Fγ∗γT(s)∼1/s2. Results for the respective cross sections of the scalar and tensor meson production are presented. Note, when scalar and tensor mesons are considered as tetraquark systems of two tightly bound color diquarks, corresponding to them transition form factors and differential cross sections have the same falloffs as in case of quark-antiquark picture. For other tetraquark or two-hadron molecules configurations the transition form factors Fγ∗γS(T)(s) and the differential cross section dσ/dt have additional 1/s and 1/s2 falloffs, respectively. Режим доступа: по договору с организацией-держателем ресурса |
| 言語: | 英語 |
| 出版事項: |
2017
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1103/PhysRevD.96.094018 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658189 |
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| 200 | 1 | |a Role of QCD compositeness in the production of scalar and tensor mesons through single-photon annihilation e+e−→γ∗→γS(T) |f A. G. Chumakov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 14 tit.] | ||
| 330 | |a We study the exclusive production of scalar S=0++ and tensor T=2++ mesons through single-photon annihilation e+e−→γ∗→γS(T). Using QCD compositeness of the involved hadrons considered as quark-antiquark systems, the prediction for the scaling of the differential cross sections of these processes is dσ/dt∼1/s3 at large s. We further derive the scaling of the γ∗→γS and γ∗→γT transition form factors: Fγ∗γS(s)∼1/s and Fγ∗γT(s)∼1/s2. Results for the respective cross sections of the scalar and tensor meson production are presented. Note, when scalar and tensor mesons are considered as tetraquark systems of two tightly bound color diquarks, corresponding to them transition form factors and differential cross sections have the same falloffs as in case of quark-antiquark picture. For other tetraquark or two-hadron molecules configurations the transition form factors Fγ∗γS(T)(s) and the differential cross section dσ/dt have additional 1/s and 1/s2 falloffs, respectively. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review D |o particles, fields, gravitation, and cosmology |d 1970- | ||
| 463 | |t Vol. 96, iss. 9 |v [094018, 9 p.] |d 2017 | ||
| 610 | 1 | |a электронный ресурс | |
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| 610 | 1 | |a мезоны | |
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| 610 | 1 | |a аннигиляция | |
| 701 | 1 | |a Chumakov |b A. G. |c physicist |c laboratory assistant-researcher of Tomsk Polytechnic University |f 1992- |g Aleksandr Grigorjevich |3 (RuTPU)RU\TPU\pers\41079 | |
| 701 | 1 | |a Gutsche |b T. |g Thomas | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
| 701 | 1 | |a Schmidt |b I. A. |g Ivan | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
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